ISO 5154:2023
(Main)Decorative metallic coatings for radio wave transmissive application products — Designation and characterization method
Decorative metallic coatings for radio wave transmissive application products — Designation and characterization method
This document specifies the designation and the characterization methods of the decorative metallic coatings of the products for radio wave transmissive application. The designation consists of the transmission loss of the radio wave, the frequency band of the radio wave under consideration, the lightness and hue of the parts, as well as the main material and manufacturing process of metallic coatings. The characterization methods consist of the determination of the transmission loss of radio wave with specific frequency band and the evaluation of lightness and hue which represent the colour and appearance.
Revêtements métalliques décoratifs pour les produits d'application transmettant les ondes radio — Désignation et méthode de caractérisation
General Information
Relations
Buy Standard
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 5154
Second edition
2023-07
Decorative metallic coatings for
radio wave transmissive application
products — Designation and
characterization method
Revêtements métalliques décoratifs pour les produits d'application
transmettant les ondes radio — Désignation et méthode de
caractérisation
Reference number
ISO 5154:2023(E)
© ISO 2023
---------------------- Page: 1 ----------------------
ISO 5154:2023(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
© ISO 2023 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 5154:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Designation . 2
4.1 General . 2
4.2 Elementary symbol. 2
4.3 Transmission loss of radio wave . 2
4.3.1 Frequency classification . 3
4.3.2 Transmission loss of radio wave . 3
4.4 Lightness and hue . 3
4.4.1 Lightness . 3
4.4.2 Hue . 3
4.5 Main component element of coating. 4
4.6 Manufacturing method . 4
4.7 Example of designation . 4
5 Characterization . 5
5.1 Transmission loss of radio wave . 5
5.2 Lightness and hue . 5
5.3 Sampling . 5
Annex A (informative) Transmission loss measurement . 6
Annex B (informative) Colour measurement .11
Bibliography .20
iii
© ISO 2023 – All rights reserved
---------------------- Page: 3 ----------------------
ISO 5154:2023(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO document should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use
of (a) patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed
patent rights in respect thereof. As of the date of publication of this document, ISO had not received
notice of (a) patent(s) which may be required to implement this document. However, implementers are
cautioned that this may not represent the latest information, which may be obtained from the patent
database available at www.iso.org/patents. ISO shall not be held responsible for identifying any or all
such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 107, Metallic and inorganic coatings,
Subcommittee SC 9, Physical vapour deposition coatings.
This second edition cancels and replaces the first edition (ISO 5154:2022), of which it constitutes a
minor revision. The changes are as follows:
— updated titles of Table 4 and Table 5;
— updated the position shifts of circles in Figure B.6.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
© ISO 2023 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 5154:2023(E)
Introduction
This document was developed to provide the designation of the characteristics of the decorative
metallic coatings for radio wave transmissive application products, in response to worldwide demand
for the standardization of such products. This document was also developed to specify the standard
method to quantitatively characterize the decorative parts with the metallic coatings that both have
the low transmission loss of radio wave and the metallic appearance.
One of the typical applications of the radio wave transmissive application products is the metallized
plastic emblem and other decorative exterior parts for automobiles. These parts are placed in front of
the millimetre wave radar transmitter-receivers of the collision prevention system. A typical example
of these parts has the low transmission loss of the specific radio wave lower than 2,5 dB and the bright
metallic appearance with lightness of 70 or higher. Low transmission loss is consistent with metallic
appearance by forming a discontinuous structure of metallic coatings. An example of the discontinuous
coating is the sputter-deposited film of low melting point metals such as indium having island structure.
This document specifies the designation and the characterization methods of the decorative metallic
coatings of the products for radio wave transmissive application. The designation consists of the
transmission loss of the radio wave, the frequency band of the radio wave under consideration, the
lightness and hue of the parts, as well as the main material and manufacturing process of metallic
coatings. The characterization methods consist of the determination of the transmission loss of radio
wave with specific frequency band and the evaluation of lightness and hue which represent the colour
and appearance.
Examples of measurement results of the radio wave transmission loss and the colour characteristics
are described in Annex A and Annex B, respectively. The information in annexes is for the convenience
of users and does not constitute an endorsement by ISO.
v
© ISO 2023 – All rights reserved
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 5154:2023(E)
Decorative metallic coatings for radio wave transmissive
application products — Designation and characterization
method
1 Scope
This document specifies the designation and the characterization methods of the decorative metallic
coatings of the products for radio wave transmissive application. The designation consists of the
transmission loss of the radio wave, the frequency band of the radio wave under consideration, the
lightness and hue of the parts, as well as the main material and manufacturing process of metallic
coatings. The characterization methods consist of the determination of the transmission loss of radio
wave with specific frequency band and the evaluation of lightness and hue which represent the colour
and appearance.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 2080, Metallic and other inorganic coatings — Surface treatment, metallic and other inorganic coatings
— Vocabulary
ISO 4519, Electrodeposited metallic coatings and related finishes — Sampling procedures for inspection by
attributes
ISO/CIE 11664-4, Colorimetry — Part 4: CIE 1976 L*a*b* colour space
ISO 16348, Metallic and other inorganic coatings — Definitions and conventions concerning appearance
IEC 60050, International Electrotechnical Vocabulary (IEV)
IEC 62431, Reflectivity of electromagnetic wave absorbers in millimetre wave frequency — Measurement
methods
CIE S 017, International Lighting Vocabulary
JIS Z 8721, Specification of colours according to their three attributes
ASTM D1535, Standard Practice for Specifying Color by the Munsell System
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 2080, ISO 16348, IEC 60050
and CIE S 017 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
1
© ISO 2023 – All rights reserved
---------------------- Page: 6 ----------------------
ISO 5154:2023(E)
3.1
VNA
vector network analyser
instrument to measure the transfer and/or impedance characteristics, that is, both magnitude and
phase changes, of a linear network, device, or material through stimulus response testing over a given
frequency range
3.2
TRL calibration method
thru-reflect-line calibration method
one of the calibration methods to fix the systematic errors with the network analyser measurements
using a zero-length "thru", a longer "thru" (called “line”), and high-reflect standards
3.3
skin depth
depth at which the current density in a conducting material is reduced to 1/e times the surface current
density, at a given frequency
3.4
SCI
specular component include
type of colour measurements including both specular and diffused reflected light
3.5
SCE
specular component exclude
type of colour measurements excluding any specular reflected light
4 Designation
4.1 General
A designation consists of the following:
a) the letters, "StM", as the elementary symbol indicating that the decorative metallic coating has
ability for radio wave transmittance and metallic appearance;
b) a letter indicating the frequency band classification;
c) the letter "T" and a number giving the transmission loss followed by a solidus (/);
d) the letter "L" and a number indicating the lightness;
e) letters indicating the hue followed by a solidus (/);
f) an elemental symbol of the main component element of coatings followed by a solidus (/);
g) letters indicting the manufacturing method of coatings.
4.2 Elementary symbol
The elementary symbol, StM, shall indicate that the decorative metallic coating has ability for radio
wave transmittance and metallic appearance.
4.3 Transmission loss of radio wave
The following letters and numbers designate the frequency band of the radio wave under consideration
and the transmission loss due to reflection and absorption.
2
© ISO 2023 – All rights reserved
---------------------- Page: 7 ----------------------
ISO 5154:2023(E)
4.3.1 Frequency classification
The letters shown in Table 1 designate the frequency bands of the radio wave under consideration.
Table 1 — Designation of frequency bands of radio wave
a
Frequency band of the radio wave under consideration
b
Designation Band name
Hz
9 9
A 18 × 10 to 26,5 × 10 K
9 9
B 26,5 × 10 to 40 × 10 Ka
9 9
C 50 × 10 to75 × 10 V
9 9
D 75 × 10 to 110 × 10 W
9 9
E 110 × 10 to170 × 10 D
9 9
F 170 × 10 to 260 × 10 H
9 9
G 300 × 10 to 500 × 10 -
a
Lower limit exclusive, upper limit inclusive.
b
The band names of specific frequencies are given in Reference [1].
4.3.2 Transmission loss of radio wave
The letter "T" and a number designate the transmission loss of the radio wave due to reflection and
absorption as shown in Table 2.
Table 2 — Designation of transmission loss
a
Transmission loss
Designation
dB
T0,1 0,1 or below
Tx (x = 0,2 to 2,4) x
T2,5 2,5 or above
a
Transmission loss shall be rounded off to one decimal place.
4.4 Lightness and hue
The following letters and numbers designate the lightness and hue angle that specify the colour and
appearance.
4.4.1 Lightness
The letter "L" and a number designate the lightness as shown in Table 3.
Table 3 — Designation of lightness
a
Designation Lightness
L100 100 or above
Ln (n = 99 to 41) n
L40 40 or below
a
Lightness shall be rounded off to integer.
4.4.2 Hue
The letter(s) shown in Table 4 designate the hue.
3
© ISO 2023 – All rights reserved
---------------------- Page: 8 ----------------------
ISO 5154:2023(E)
Table 4 — Designation of hue
a
Hue angle
Designation Description of colour name
deg
Chroma of between 3,0 and 5,0
R 3 - 36 Red
YR 36 - 75 Yellow red
Y 75 - 103 Yellow
GY 103 - 148 Green yellow
G 148 - 186 Green
BG 186 - 225 Blue green
B 225 - 266 Blue
PB 266 - 302 Purple blue
P 302 - 332 Purple
RP 332 - 0 Red purple
RP 0 - 3 Red purple
Chroma of between 0,8 and 3,0
R 0 - 55 Red
Y 55 to 120 Yellow
G 120 to 205 Green
B 205 to 285 Blue
P 285 to 350 Purple
R 350 to 360 Red
Chroma of 0,8 or below
N Achromatic colour
a
Lower limit exclusive, upper limit inclusive.
4.5 Main component element of coating
An elemental symbol designates the main component element of the decorative metallic coating.
4.6 Manufacturing method
The symbols shown in Table 5 designate the manufacturing methods of the decorative metallic coating.
Table 5 — Designation of manufacturing method
Designation Manufacturing method
Ve Vacuum evaporation
Sp Sputtering
a
Ep Electroplating or Electroless plating
OP Other process
a
Electroless plating includes autocatalytic plating and
immersion coating (see ISO 2080).
4.7 Example of designation
Decorative metallic coatings for radio wave transmissive application products for W band radio wave
(75 GHz to 110 GHz) with transmission loss of T0,4 level, having the appearance with the lightness of 90
4
© ISO 2023 – All rights reserved
---------------------- Page: 9 ----------------------
ISO 5154:2023(E)
and the hue of BG (blue green), with the main material of chromium coated by sputtering process would
have the following designation:
EXAMPLE StM D T0,4 / L90 BG/ Cr/ Sp+
5 Characterization
5.1 Transmission loss of radio wave
The transmission loss of the specific radio wave frequency band due to the reflection and adsorption
shall be determined in accordance with IEC 62431.
5.2 Lightness and hue
The definition of the parameters in CIELAB 1976 colour space, that is, lightness, L*, chroma, C*, and
chromaticities, a*, and b*, are given in ISO/CIE 11664-4. These parameters shall be determined in
accordance with ISO/CIE 11664-4. Hue angles shall be calculated from L*, a*, and b* values determined
in accordance with ISO/CIE 11664-4.
Colour names shall be determined from hue angles in accordance with Munsell colour system (10 hue)
shown in JIS Z 8721 and ASTM D1535 for the products with C* above 0,8. The colour name of the
products with C* of 0,8 or below shall be defined as achromatic
...
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 5154
ISO/TC 107/SC 9
Decorative metallic coatings for
Secretariat: SAC
radio wave transmissive application
Voting begins on:
2023-05-08 products — Designation and
characterization method
Voting terminates on:
2023-07-03
Revêtements métalliques décoratifs pour les produits d'application
transmettant les ondes radio — Désignation et méthode de
caractérisation
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 5154:2023(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2023
---------------------- Page: 1 ----------------------
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 5154
ISO/TC 107/SC 9
Decorative metallic coatings for
Secretariat: SAC
radio wave transmissive application
Voting begins on:
products — Designation and
characterization method
Voting terminates on:
Revêtements métalliques décoratifs pour les produits d'application
transmettant les ondes radio — Désignation et méthode de
caractérisation
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
RECIPIENTS OF THIS DRAFT ARE INVITED TO
ISO copyright office
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
CP 401 • Ch. de Blandonnet 8
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
CH-1214 Vernier, Geneva
DOCUMENTATION.
Phone: +41 22 749 01 11
IN ADDITION TO THEIR EVALUATION AS
Reference number
Email: copyright@iso.org
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO
ISO/FDIS 5154:2023(E)
Website: www.iso.org
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
Published in Switzerland
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN
DARDS TO WHICH REFERENCE MAY BE MADE IN
ii
© ISO 2023 – All rights reserved
NATIONAL REGULATIONS. © ISO 2023
---------------------- Page: 2 ----------------------
ISO/FDIS 5154:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Designation . 2
4.1 General . 2
4.2 Elementary symbol. 2
4.3 Transmission loss of radio wave . 2
4.3.1 Frequency classification . 3
4.3.2 Transmission loss of radio wave . 3
4.4 Lightness and hue . 3
4.4.1 Lightness . 3
4.4.2 Hue . 3
4.5 Main component element of coating. 4
4.6 Manufacturing method . 4
4.7 Example of designation . 4
5 Characterization . 5
5.1 Transmission loss of radio wave . 5
5.2 Lightness and hue . 5
5.3 Sampling . 5
Annex A (informative) Transmission loss measurement . 6
Annex B (informative) Colour measurement .11
Bibliography .20
iii
© ISO 2023 – All rights reserved
---------------------- Page: 3 ----------------------
ISO/FDIS 5154:2023(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and nongovernmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO document should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use
of (a) patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed
patent rights in respect thereof. As of the date of publication of this document, ISO had not received
notice of (a) patent(s) which may be required to implement this document. However, implementers are
cautioned that this may not represent the latest information, which may be obtained from the patent
database available at www.iso.org/patents. ISO shall not be held responsible for identifying any or all
such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 107, Metallic and inorganic coatings,
Subcommittee SC 9, Physical vapour deposition coatings.
This second edition cancels and replaces the first edition (ISO 5154:2022), of which it constitutes a
minor revision. The changes are as follows:
— updated titles of Table 4 and Table 5;
— updated the position shifts of circles in Figure B.6.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
© ISO 2023 – All rights reserved
---------------------- Page: 4 ----------------------
ISO/FDIS 5154:2023(E)
Introduction
This document was developed to provide the designation of the characteristics of the decorative
metallic coatings for radio wave transmissive application products, in response to worldwide demand
for the standardization of such products. This document was also developed to specify the standard
method to quantitatively characterize the decorative parts with the metallic coatings that both have
the low transmission loss of radio wave and the metallic appearance.
One of the typical applications of the radio wave transmissive application products is the metallized
plastic emblem and other decorative exterior parts for automobiles. These parts are placed in front of
the millimetre wave radar transmitter-receivers of the collision prevention system. A typical example
of these parts has the low transmission loss of the specific radio wave lower than 2,5 dB and the bright
metallic appearance with lightness of 70 or higher. Low transmission loss is consistent with metallic
appearance by forming a discontinuous structure of metallic coatings. An example of the discontinuous
coating is the sputter-deposited film of low melting point metals such as indium having island structure.
This document specifies the designation and the characterization methods of the decorative metallic
coatings of the products for radio wave transmissive application. The designation consists of the
transmission loss of the radio wave, the frequency band of the radio wave under consideration, the
lightness and hue of the parts, as well as the main material and manufacturing process of metallic
coatings. The characterization methods consist of the determination of the transmission loss of radio
wave with specific frequency band and the evaluation of lightness and hue which represent the colour
and appearance.
Examples of measurement results of the radio wave transmission loss and the colour characteristics
are described in Annex A and Annex B, respectively. The information in annexes is for the convenience
of users and does not constitute an endorsement by ISO.
v
© ISO 2023 – All rights reserved
---------------------- Page: 5 ----------------------
FINAL DRAFT INTERNATIONAL STANDARD ISO/FDIS 5154:2023(E)
Decorative metallic coatings for radio wave transmissive
application products — Designation and characterization
method
1 Scope
This document specifies the designation and the characterization methods of the decorative metallic
coatings of the products for radio wave transmissive application. The designation consists of the
transmission loss of the radio wave, the frequency band of the radio wave under consideration, the
lightness and hue of the parts, as well as the main material and manufacturing process of metallic
coatings. The characterization methods consist of the determination of the transmission loss of radio
wave with specific frequency band and the evaluation of lightness and hue which represent the colour
and appearance.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 2080, Metallic and other inorganic coatings — Surface treatment, metallic and other inorganic coatings
— Vocabulary
ISO 4519, Electrodeposited metallic coatings and related finishes — Sampling procedures for inspection by
attributes
ISO/CIE 116644, Colorimetry — Part 4: CIE 1976 L*a*b* colour space
ISO 16348, Metallic and other inorganic coatings — Definitions and conventions concerning appearance
IEC 60050, The international electrotechnical vocabulary
IEC 62431, Measurement Methods for Reflectivity of Electromagnetic Wave Absorbers in Millimetre Wave
Frequency
CIE S 017, International Lighting Vocabulary
JIS Z 8721, Specification of colours according to their three attributes
ASTMD 1535, Standard Practice for Specifying Color by the Munsell System
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 2080, ISO 16348, IEC 60050
and CIE S 017 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
1
© ISO 2023 – All rights reserved
---------------------- Page: 6 ----------------------
ISO/FDIS 5154:2023(E)
3.1
VNA
vector network analyser
instrument to measure the transfer and/or impedance characteristics, that is, both magnitude and
phase changes, of a linear network, device, or material through stimulus response testing over a given
frequency range
3.2
TRL calibration method
thru-reflect-line calibration method
one of the calibration methods to fix the systematic errors with the network analyser measurements
using a zero-length "thru", a longer "thru" (called “line”), and high-reflect standards
3.3
skin depth
depth at which the current density in a conducting material is reduced to 1/e times the surface current
density, at a given frequency
3.4
SCI
specular component include
type of colour measurements including both specular and diffused reflected light
3.5
SCE
specular component exclude
type of colour measurements excluding any specular reflected light
4 Designation
4.1 General
A designation consists of the following:
a) the letters, "StM", as the elementary symbol indicating that the decorative metallic coating has
ability for radio wave transmittance and metallic appearance;
b) a letter indicating the frequency band classification;
c) the letter "T" and a number giving the transmission loss followed by a solidus (/);
d) the letter "L" and a number indicating the lightness;
e) letters indicating the hue followed by a solidus (/);
f) an elemental symbol of the main component element of coatings followed by a solidus (/);
g) letters indicting the manufacturing method of coatings.
4.2 Elementary symbol
The elementary symbol, StM, shall indicate that the decorative metallic coating has ability for radio
wave transmittance and metallic appearance.
4.3 Transmission loss of radio wave
The following letters and numbers designate the frequency band of the radio wave under consideration
and the transmission loss due to reflection and absorption.
2
© ISO 2023 – All rights reserved
---------------------- Page: 7 ----------------------
ISO/FDIS 5154:2023(E)
4.3.1 Frequency classification
The letters shown in Table 1 designate the frequency bands of the radio wave under consideration.
Table 1 — Designation of frequency bands of radio wave
a
Frequency band of the radio wave under consideration
b
Designation Band name
Hz
9 9
A 18 × 10 to 26,5 × 10 K
9 9
B 26,5 × 10 to 40 × 10 Ka
9 9
C 50 × 10 to75 × 10 V
9 9
D 75 × 10 to 110 × 10 W
9 9
E 110 × 10 to170 × 10 D
9 9
F 170 × 10 to 260 × 10 H
9 9
G 300 × 10 to 500 × 10
a
Lower limit exclusive, upper limit inclusive.
b
The band names of specific frequencies are given in Reference [1].
4.3.2 Transmission loss of radio wave
The letter "T" and a number designate the transmission loss of the radio wave due to reflection and
absorption as shown in Table 2.
Table 2 — Designation of transmission loss
a
Transmission loss
Designation
dB
T0,1 0,1 or below
Tx (x = 0,2 to 2,4) x
T2,5 2,5 or above
a
Transmission loss shall be rounded off to one decimal place.
4.4 Lightness and hue
The following letters and numbers designate the lightness and hue angle that specify the colour and
appearance.
4.4.1 Lightness
The letter "L" and a number designate the lightness as shown in Table 3.
Table 3 — Designation of lightness
a
Designation Lightness
L100 100 or above
Ln (n = 99 to 41) n
L40 40 or below
a
Lightness shall be rounded off to integer.
4.4.2 Hue
The letter(s) shown in Table 4 designate the hue.
3
© ISO 2023 – All rights reserved
---------------------- Page: 8 ----------------------
ISO/FDIS 5154:2023(E)
Table 4 — Designation of hue
a
Hue angle
Designation Description of colour name
deg
Chroma of between 3,0 and 5,0
R 3 36 Red
YR 36 75 Yellow red
Y 75 103 Yellow
GY 103 148 Green yellow
G 148 186 Green
BG 186 225 Blue green
B 225 266 Blue
PB 266 302 Purple blue
P 302 332 Purple
RP 332 0 Red purple
RP 0 3 Red purple
Chroma of between 0,8 and 3,0
R 0 55 Red
Y 55 to 120 Yellow
G 120 to 205 Green
B 205 to 285 Blue
P 285 to 350 Purple
R 350 to 360 Red
Chroma of 0,8 or below
N Achromatic colour
a
Lower limit exclusive, upper limit inclusive.
4.5 Main component element of coating
An elemental symbol designates the main component element of the decorative metallic coating.
4.6 Manufacturing method
The symbols shown in Table 5 designate the manufacturing methods of the decorative metallic coating.
Table 5 — Designation of manufacturing method
Designation Manufacturing method
Ve Vacuum evaporation
Sp Sputtering
a
Ep Electroplating or Electroless plating
OP Other process
a
Electroless plating includes autocatalytic plating and
immersion coating (see ISO 2080).
4.7 Example of designation
Decorative metallic coatings for radio wave transmissive application products for W band radio wave
(75 GHz to 110 GHz) with transmission loss of T0,4 level, having the appearance with the lightness of 90
4
© ISO 2023 – All rights reserved
---------------------- Page: 9 ----------------------
ISO/FDIS 5154:2023(E)
and the hue of BG (blue green), with the main material of chromium coated by sputtering process would
have the following designation:
EXAMPLE StM D T0,4 / L90 BG/ Cr/ Sp+
5 Characterization
5.1 Transmission loss of radio wave
The transmission loss of the specific radio wave frequency band due to the reflection and adsorption
shall be determined in accordance with IEC 62431.
5.2 Lightness and hue
The definition of the parametres
...
ISO/FDIS 5154:2023(E)
Style Definition: Heading 1
Style Definition: Heading 2
ISO TC/107/SC 9
Style Definition: Heading 3
Style Definition: Heading 4
DATE: 2023-03-2904-24
Style Definition: Heading 5
Secretariat: SAC
Style Definition: Heading 6
Style Definition: Default Paragraph Font
Decorative metallic coatings for radio wave transmissive application products —
Style Definition: ANNEX
Designation and characterization method
Style Definition: List Continue
Revêtements métalliques décoratifs pour les produits d'application transmettant les ondes
Style Definition: AMEND Terms Heading
radio — Désignation et méthode de caractérisation
Style Definition: AMEND Heading 1 Unnumbered
Style Definition: ハッシュタグ1
Style Definition: メンション1
Style Definition: スマート ハイパーリンク1
Style Definition: 未解決のメンション1
Formatted: Font: 11.5 pt, French (Switzerland)
Formatted: Font: 11.5 pt, French (Switzerland)
Formatted: Font: Not Bold, French (Switzerland)
Formatted: French (Switzerland)
Formatted: Font: Not Bold, French (Switzerland)
Formatted: English (United Kingdom)
Formatted: Font: Not Bold, English (United Kingdom)
Formatted: Font: Not Bold
Formatted: Font: Not Bold
Formatted: Font: Not Italic
© ISO 2023 – All rights reserved 1
---------------------- Page: 1 ----------------------
ISO/FDIS 5154:2023(E)
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation,
no part of this publication may be reproduced or utilized otherwise in any form or by any means,
electronic or mechanical, including photocopying, or posting on the internet or an intranet,
without prior written permission. Permission can be requested from either ISO at the address
below or ISO's member body in the country of the requester.
ISO Copyright Office
CP 401 • CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
Email: copyright@iso.orgcopyright@iso.org
Website: www.iso.orgwww.iso.org
Published in Switzerland.
Formatted: Font: Not Bold
Formatted: Normal, Space Before: 18 pt
Formatted: Font: 9 pt
Formatted: Font: 11 pt
Formatted: Space Before: 18 pt, Line spacing: Exactly
11 pt
2ii © ISO 2023 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/FDIS 5154:2023(E)
Formatted: Right
Contents
Foreword . v
Introduction. vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Designation . 2
4.1 General . 2
4.2 Elementary symbol . 3
4.3 Transmission loss of radio wave . 3
4.3.1 Frequency classification . 3
4.3.2 Transmission loss of radio wave . 3
4.4 Lightness and hue . 3
4.4.1 Lightness . 4
4.4.2 Hue . 4
4.5 Main component element of coating . 5
4.6 Manufacturing method . 5
4.7 Example of designation . 5
5 Characterization . 5
5.1 Transmission loss of radio wave . 5
5.2 Lightness and hue . 5
5.3 Sampling . 5
Annex A (informative) Transmission loss measurement . 6
Annex B (informative) Colour measurement . 12
Bibliography . 24
Foreword . v
Introduction. vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Designation . 2
4.1 General . 2
4.2 Elementary symbol . 3
© ISO 2023 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO/FDIS 5154:2023(E)
4.3 Transmission loss of radio wave . 3
4.3.1 Frequency classification . 3
4.3.2 Transmission loss of radio wave . 3
4.4 Lightness and hue . 3
4.4.1 Lightness . 4
4.4.2 Hue . 4
4.5 Main component element of coating . 5
4.6 Manufacturing method . 5
4.7 Example of designation . 5
5 Characterization . 5
5.1 Transmission loss of radio wave . 5
5.2 Lightness and hue . 5
5.3 Sampling . 5
Annex A (informative) Transmission loss measurement . 6
Annex B (informative) Colour measurement . 12
Bibliography . 24
Formatted: Font: Not Bold
Formatted: Normal, Space Before: 18 pt
Formatted: Font: 9 pt
Formatted: Font: 11 pt
Formatted: Space Before: 18 pt, Line spacing: Exactly
11 pt
4iv © ISO 2023 – All rights reserved
---------------------- Page: 4 ----------------------
ISO/FDIS 5154:2023(E)
Formatted: Right
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national
Formatted: Adjust space between Latin and Asian text,
standards bodies (ISO member bodies). The work of preparing International Standards is normally Adjust space between Asian text and numbers
carried out through ISO technical committees. Each member body interested in a subject for which a
technical committee has been established has the right to be represented on that committee.
International organizations, governmental and non-governmental, in liaison with ISO, also take part in
the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all
matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documentsdocument should be noted. This document was drafted in accordance
with the editorial rules of the ISO/IEC Directives, Part 2 (see
www.iso.org/directiveswww.iso.org/directives).
Attention is drawnISO draws attention to the possibility that some of the elementsimplementation of
this document may beinvolve the subjectuse of (a) patent(s). ISO takes no position concerning the
evidence, validity or applicability of any claimed patent rights. in respect thereof. As of the date of
publication of this document, ISO had not received notice of (a) patent(s) which may be required to
implement this document. However, implementers are cautioned that this may not represent the latest
information, which may be obtained from the patent database available at www.iso.org/patents. ISO
shall not be held responsible for identifying any or all such patent rights. Details of any patent rights
identified during the development of the document will be in the Introduction and/or on the ISO list of
patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.htmlwww.iso.org/iso/foreword.html.
Formatted: English (United States)
This document was prepared by Technical Committee ISO/TC 107, Metallic and inorganic coatings,
Subcommittee SC 9, Physical vapour deposition coatings. It is a minor revision and the updates include
the titles of Table 4 and Table 5, as well as the position shifts of circles in Figure B.6.
This second edition cancels and replaces the first edition (ISO 5154:2022), of which it constitutes a
minor revision. The changes are as follows:
— updated titles of Table 4 and Table 5;
— updated the position shifts of circles in Figure B.6.
Any feedback or questions on this document should be directed to the user’s national standards body. A
Formatted: English (United States)
complete listing of these bodies can be found at
Formatted: Adjust space between Latin and Asian text,
www.iso.org/members.htmlwww.iso.org/members.html.
Adjust space between Asian text and numbers
Formatted: English (United States)
© ISO 2023 – All rights reserved v
---------------------- Page: 5 ----------------------
ISO/FDIS 5154:2023(E)
Introduction
This document was developed to provide the designation of the characteristics of the decorative
metallic coatings for radio wave transmissive application products, in response to worldwide demand
for the standardization of such products. This document was also developed to specify the standard
method to quantitatively characterize the decorative parts with the metallic coatings that both have the
low transmission loss of radio wave and the metallic appearance.
One of the typical applications of the radio wave transmissive application products is the metallized
plastic emblem and other decorative exterior parts for automobiles. These parts are placed in front of
the millimetre wave radar transmitter-receivers of the collision prevention system. A typical example of
these parts has the low transmission loss of the specific radio wave lower than 2,5 dB and the bright
metallic appearance with lightness of 70 or higher. Low transmission loss is consistent with metallic
appearance by forming a discontinuous structure of metallic coatings. An example of the discontinuous
coating is the sputter-deposited film of low melting point metals such as indium having island structure.
This document specifies the designation and the characterization methods of the decorative metallic
coatings of the products for radio wave transmissive application. The designation consists of the
transmission loss of the radio wave, the frequency band of the radio wave under consideration, the
lightness and hue of the parts, as well as the main material and manufacturing process of metallic
coatings. The characterization methods consist of the determination of the transmission loss of radio
wave with specific frequency band and the evaluation of lightness and hue which represent the colour
and appearance.
Examples of measurement results of the radio wave transmission loss and the colour characteristics are
described in Annex A and Annex B, respectively. The information in annexes is for the convenience of
users and does not constitute an endorsement by ISO.
Formatted: Font: Not Bold
Formatted: Normal, Space Before: 18 pt
Formatted: Font: 9 pt
Formatted: Font: 11 pt
Formatted: Space Before: 18 pt, Line spacing: Exactly
11 pt
6vi © ISO 2023 – All rights reserved
---------------------- Page: 6 ----------------------
FINAL DRAFT INTERNATIONAL STANDARD ISO /FDIS 5154:2023(E)
Decorative metallic coatings for radio wave transmissive
application products — Designation and characterization method
1 Scope
This document specifies the designation and the characterization methods of the decorative metallic
coatings of the products for radio wave transmissive application. The designation consists of the
transmission loss of the radio wave, the frequency band of the radio wave under consideration, the
lightness and hue of the parts, as well as the main material and manufacturing process of metallic
coatings. The characterization methods consist of the determination of the transmission loss of radio
wave with specific frequency band and the evaluation of lightness and hue which represent the colour
and appearance.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 2080, Metallic and other inorganic coatings — Surface treatment, metallic and other inorganic
coatings — Vocabulary
ISO 4519, Electrodeposited metallic coatings and related finishes — Sampling procedures for inspection by
attributes
ISO/CIE 11664-4, Colorimetry — Part 4: CIE 1976 L*a*b* colour space
ISO 16348, Metallic and other inorganic coatings — Definitions and conventions concerning appearance
IEC 60050, The international electrotechnical vocabulary
IEC 62431, Measurement Methods for Reflectivity of Electromagnetic Wave Absorbers in Millimetre Wave
Frequency
CIE S 017, International Lighting Vocabulary
JIS Z 8721, Specification of colours according to their three attributes
ASTM-D 1535, Standard Practice for Specifying Color by the Munsell System
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 2080, ISO 16348, IEC 60050
and CIE S 017 and the following apply.
Formatted: Font: 10 pt
Formatted: Line spacing: At least 12 pt
© ISO 2023 – All rights reserved 1
---------------------- Page: 7 ----------------------
ISO/FDIS 5154:2023(E)
ISO and IEC maintain terminologicalterminology databases for use in standardization at the following
addresses:
— ISO Online browsing platform: available at https://www.iso.org/obphttps://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/https://www.electropedia.org/
3.1
Formatted: Don't adjust space between Latin and Asian
VNA
text, Don't adjust space between Asian text and numbers
vector network analyser
instrument to measure the transfer and/or impedance characteristics, that is, both magnitude and
Formatted: English (United Kingdom)
phase changes, of a linear network, device, or material through stimulus response testing over a given
frequency range
3.2
Formatted: Don't adjust space between Latin and Asian
TRL calibration method text, Don't adjust space between Asian text and numbers
thru-reflect-line calibration method
one of the calibration methods to fix the systematic errors with the network analyser measurements
Formatted: Font: Not Bold
using a zero-length "thru", a longer "thru" (called “line”), and high-reflect standards
Formatted: English (United Kingdom)
3.3
skin depth
depth at which the current density in a conducting material is reduced to 1/e times the surface current
density, at a given frequency
3.4
Formatted: Don't adjust space between Latin and Asian
SCI
text, Don't adjust space between Asian text and numbers
specular component include
type of colour measurements including both specular and diffused reflected light
Formatted: English (United Kingdom)
Formatted: Font: Cambria, English (United Kingdom)
3.5
SCE
specular component exclude
type of colour measurements excluding any specular reflected light
Formatted: English (United Kingdom)
4 Designation
4.1 General
A designation consists of the following:
a) the letters, "StM", as the elementary symbol indicating that the decorative metallic coating has
ability for radio wave transmittance and metallic appearance;
b) a letter indicating the frequency band classification;
c) the letter "T" and a number giving the transmission loss followed by a solidus (/);
d) the letter "L" and a number indicating the lightness;
e) letters indicating the hue followed by a solidus (/);
f) an elemental symbol of the main component element of coatings followed by a solidus (/);
2 © ISO 2023 – All rights reserved
---------------------- Page: 8 ----------------------
ISO/FDIS 5154:2023(E)
Formatted: Right
g) letters indicting the manufacturing method of coatings.
4.2 Elementary symbol
The elementary symbol, StM, shall indicate that the decorative metallic coating has ability for radio
wave transmittance and metallic appearance.
4.3 Transmission loss of radio wave
The following letters and numbers designate the frequency band of the radio wave under consideration
and the transmission loss due to reflection and absorption.
4.3.1 Frequency classification
The letters shown in Table 1 designate the frequency bands of the radio wave under consideration.
Table 1 — Designation of frequency bands of radio wave
a
Frequency band of the radio wave under consideration
b
Designation Band name
Hz
9 9
A 18 × 10 to 26,5 × 10 K
9 9
B 26,5 × 10 to 40 × 10 Ka
9 9
C 50 × 10 to75 × 10 V
9 9
D 75 × 10 to 110 × 10 W
9 9
E 110 × 10 to170 × 10 D
9 9
F 170 × 10 to 260 × 10 H
9 9
G 300 × 10 to 500 × 10 -
a
Lower limit exclusive, upper limit inclusive.
b
The band names of specific frequencies are given in Reference [1].
4.3.2 Transmission loss of radio wave
The letter "T" and a number designate the transmission loss of the radio wave due to reflection and
absorption as shown in Table 2.
Table 2 — Designation of transmission loss
a
Transmission loss
Designation
dB
T0,1 0,1 or below
Tx (x = 0,2 to 2,4) x
T2,5 2,5 or above
a
Transmission loss shall be rounded off to one decimal place.
4.4 Lightness and hue
The following letters and numbers designate the lightness and hue angle that specify the colour and
appearance.
© ISO 2023 – All rights reserved 3
---------------------- Page: 9 ----------------------
ISO/FDIS 5154:2023(E)
4.4.1 Lightness
The letter "L" and a number designate the lightness as shown in Table 3.
Table 3 — Designation of lightness
a
Designation Lightness
L100 100 or above
Ln (n = 99 to 41) n
L40 40 or below
a
Lightness shall be rounded off to integer.
4.4.2 Hue
The letter(s) shown in Table 4 designate the hue.
Table 4 — Designation of hue
a
Hue angle
Designation Description of colour name
deg
Chroma of between 3,0 and 5,0
R 3 - 36 Red
YR 36 - 75 Yellow red
Y 75 - 103 Yellow
GY 103 - 148 Green yellow
G 148 - 186 Green
BG 186 - 225 Blue green
B 225 - 266 Blue
PB 266 - 302 Purple blue
P 302 - 332 Purple
RP 332 - 0 Red purple
RP 0 - 3 Red purple
Chroma of between 0,8 and 3,0
R 0 - 55 Red
Y 55 to 120 Yellow
G 120 to 205 Green
B 205 to 285 Blue
P 285 to 350 Purple
R 350 to 360 Red
Chroma of 0,8 or below
Formatted: Centered
N Achromatic colour
a
Lower limit exclusive, upper limit inclusive.
4 © ISO 2023 – All rights reserved
---------------------- Page: 10 ----------------------
ISO/FDIS 5154:2023(E)
Formatted: Right
4.5 Main component element of coating
An elemental symbol designates the main component element of the decorative metallic coating.
4.6 Manufacturing method
The symbols shown in Table 5 designate the manufacturing methods of the decorative metallic coating.
Table 5 — Designation of manufacturing method
Designation Manufacturing method
Ve Vacuum evaporation
Sp Sputtering
a
Ep Electroplating or Electroless plating
OP Other process
a
Electroless plating includes autocatalytic plating and immersion
coating (see ISO 2080).
4.7 Example of designation
Decorative metallic coatings for radio wave transmissive application products for W band radio wave
(75 GHz to 110 GHz) with transmission loss of T0,4 level, having the appearance with the lightness of 90
and the hue of BG (blue green), with the main material of chromium coated by sputtering process would
have the following designation:
EXAMPLE StM D T0,4 / L90 BG/ Cr/ Sp+
5 Characterization
5.1 Transmission loss of radio wave
The transmission loss of the specific radio wave frequency band due to the reflection and adsorption
shall be determined in accordance with IEC 62431.
5.2 Lightness and hue
The definition of the parametres in CIELAB 1976 colour space, that is, lightness, L*, chroma, C*, and
chromaticities, a*, and b*, are given in ISO/CIE 11664-4. These parameters shall be determined in
accordance with ISO/CIE 11664-4. Hue angles shall be calculated from L*, a*, and b* values determined
in accordance with ISO/CIE 11664-4.
Colour names shall be determined from hue angles in accordance with Munsell colour system (10 hue)
shown in JIS Z 8721 and ASTM D 1535 for the products with C* above 0,8. The colour name of the
products with C* of 0,8 or below shall be defined as achromatic colour.
5.3 Sampling
The sampling shall be carried out in accordance with ISO 4519. The samples of which sizes are fit to the
characterization devices may be used. The samples for characterization shall have the same materials
and the same coating configurations as the products.
© ISO 2023 – All rights reserved 5
---------------------- Page: 11 ----------------------
ISO/FDIS 5154:2023(E)
Annex A
(informative)
Transmission loss measurement
A.1 Principle
This annex describes an example of measurement method and some examples of measurement results
of the radio wave transmission loss of decorative metallic coatings for radio wave transmissive
application products. A free-space measurement method for microwave and millimetre-wave is
described. This annex also shows the measurement results of the decorative indium and chromium
coatings by the free-space measurement method. These coatings are typically used for the radio wave
transmissive applications such as the automobile exterior parts placed in front of the millimetre wave
radar transmitter-receivers of the collision prevention system.
A.2 Sample and measurement method
A.2.1 Sample
Multi layered structured samples as shown in Figure A.1, of which structure is similar to the decorative
metallic coatings of radio wave transmissive parts used in exteriors of automobiles, were prepared.
Samples having the same structure were also used in the colour measurements shown in Annex B.
Detailed information of metallic coatings in these samples are listed in Table A.1.
Thickness of the metallic coatings was determined on the basis of the skin depth of radio waves in order
that small transmission loss due to the absorption can be expected. The calculated skin depths of
indium and chromium at 110 GHz are 620 nm and 763 nm, respectively. Discontinuous metallic
coatings were also formed to lessen the transmission loss. Discontinuous metallic coatings, that is,
island-structured indium or micro-cracked chromium, were prepared by sputtering or vacuum
evaporation methods.
The island-structured indium coatings are widely used in the emblem and other decorative exterior
parts of automobiles in the market, to obtain both the low transmission loss of radio waves and bright
metallic appearance. Micro-cracked chromium coatings are expected to exhibit both the low
transmission loss of radio waves and valued appearance similar to the bright electroplated chromium
coatings.
Five samples of chromium coatings and four samples of indium coatings shown in Table A.1, which are
expected to have different radio wave transmissive characteristics, were manufactured by sputtering or
vacuum evaporation with different process parameters.
NOTE Skin depth is a function of electrical conductivity and permeability of the material and radio wave
frequency. Skin depth is smaller at higher frequency. Calculated skin depths at 110 GHz, that is, at the highest
frequency under consideration, are the smallest ones.
6 © ISO 2023 – All rights reserved
---------------------- Page: 12 ----------------------
ISO/FDIS 5154:2023(E)
Formatted: Right
Key
1 top coat: resin
Formatted: Left
2 metallic coating: In or Cr
Formatted: Left
3 under coat: resin
Formatted: Left
4 substrate: polycarbonate, 100 mm × 50 mm × 2 mm
5 incident of millimetre wave Formatted: Left
Formatted: Left
Figure A.1 — Sample
Table A.1 — Detailed Information of metallic coating
Main component element Morphology Manufacturing
No.
of metallic coating of metallic coating method
1 Cr micro-crack Sputtering
2 Cr micro-crack Sputtering
3 Cr micro-crack Sputtering
micro-crack
4 Cr Sputtering
5 Cr micro-crack Sputtering
island Vacuum
6 In
evaporation
island Vacuum
7 In
evaporation
island
8 In Sputtering
island Vacuum
9 In
evaporation
A.2.2 Measurement theory
© ISO 2023 – All rights reserved 7
---------------------- Page: 13 ----------------------
ISO/FDIS 5154:2023(E)
Radio wave transmission loss of the decorative metallic coatings is defined as the ratio of voltage
signals received with and without the metallic coating for the same incident power. It is usually
expressed by Formula (A.1):
Transmis
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.