iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
CEN

FprEN ISO 21135

(Main)

Chemicals for the leather tanning industry - Determination of the total content of certain bisphenols (ISO/FDIS 21135:2024)

Chemicals for the leather tanning industry - Determination of the total content of certain bisphenols (ISO/FDIS 21135:2024)

This document specifies a method for the determination of the total content of certain bisphenols in chemicals used in the tanning
industry

Chemikalien für die Gerbereiindustrie - Bestimmung des Gesamtgehalts von einzelnen Bisphenolen (ISO/FDIS 21135:2024)

Dieses Dokument legt ein Verfahren zur Bestimmung des Gesamtgehalts (lösemittelextrahierbar) der folgenden Bisphenole in Chemikalien fest, die in der Gerbereiindustrie verwendet werden:
   Bisphenol A;
   Bisphenol AF;
   Bisphenol B;
   Bisphenol F;
   Bisphenol S.
Dieses Verfahren erfordert den Einsatz von Flüssigchromatographie (LC) entweder mit einem Single-Quadrupol-Massenspektrometer (MS), einem Triple-Quadrupol-Massenspektrometer (MS/MS), einem Ultraviolett (UV)-Detektor, einem Diodenarray-Detektor (DAD) oder einem Fluoreszenz-Detektor (FLD) zur Identifizierung und Quantifizierung der Bisphenole.
ANMERKUNG 1   Dieses Verfahren kann auch für andere Bisphenole verwendet werden, wenn sie vom Labor validiert wurden.
ANMERKUNG 2   Bisphenol S kann nicht mit FLD nachgewiesen werden.

Produits chimiques pour l’industrie du tannage du cuir - Détermination de la teneur totale en certains bisphénols (ISO/FDIS 21135:2024)

Kemikalije za industrijo strojenja usnja - Določevanje celotne vsebnosti nekaterih bisfenolov (ISO/FDIS 21135:2024)

General Information

Status
Not Published
Publication Date
11-Jun-2024
ICS
59.140.30 - Leather and furs
Technical Committee
CEN/TC 289 - Leather
Drafting Committee
CEN/TC 289/WG 6 - Test methods for tannery chemicals
Current Stage
5060 - Closure of Vote - Formal Approval
Start Date
12-Apr-2024
Completion Date
12-Apr-2024
Ref Project
kSIST FprEN ISO 21135:2024 - Chemicals for the leather tanning industry - Determination of the total content of certain bisphenols (ISO/FDIS 21135:2024)

Buy Standard

prEN ISO 21135:2023prEN ISO 21135:2023
PreviousNext
Draft
prEN ISO 21135:2023
English language
18 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN ISO 21135:2023
01-oktober-2023
Kemikalije za industrijo strojenja usnja - Določevanje celotne vsebnosti nekaterih
bisfenolov (ISO/DIS 21135:2023)
Chemicals for the leather tanning industry - Determination of the total content of certain
bisphenols (ISO/DIS 21135:2023)
Chemikalien für die Gerbereiindustrie - Bestimmung des Gesamtgehalts von einzelnen
Bisphenolen (ISO/DIS 21135:2023)
Produits chimiques pour l’industrie du tannage du cuir - Détermination de la teneur totale
en certains bisphénols (ISO/DIS 21135:2023)
Ta slovenski standard je istoveten z: prEN ISO 21135
ICS:
59.140.30 Usnje in krzno Leather and furs
oSIST prEN ISO 21135:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 21135:2023

---------------------- Page: 2 ----------------------
oSIST prEN ISO 21135:2023
DRAFT INTERNATIONAL STANDARD
ISO/DIS 21135
IULTCS
IULTCS Secretariat: ISO
Voting begins on: Voting terminates on:
2023-08-04 2023-10-27
Chemicals for the leather tanning industry - Determination
of the total content of certain bisphenols
ICS: 59.140.30
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference numbers
NATIONAL REGULATIONS.
ISO/DIS 21135:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
IULTCS/IUC 442:2023(E)
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023

---------------------- Page: 3 ----------------------
oSIST prEN ISO 21135:2023
ISO/DIS 21135:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 21135
IULTCS
IUC 442
IULTCS Secretariat: ISO
Voting begins on: Voting terminates on:

Chemicals for the leather tanning industry - Determination
of the total content of certain bisphenols
ICS: 59.140.30
This document is circulated as received from the committee secretariat.
COPYRIGHT PROTECTED DOCUMENT
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2023
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
NOT BE REFERRED TO AS AN INTERNATIONAL
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on STANDARD UNTIL PUBLISHED AS SUCH.
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
IN ADDITION TO THEIR EVALUATION AS
or ISO’s member body in the country of the requester. BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
ISO copyright office
USER PURPOSES, DRAFT INTERNATIONAL
CP 401 • Ch. de Blandonnet 8
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
CH-1214 Vernier, Geneva
POTENTIAL TO BECOME STANDARDS TO
Phone: +41 22 749 01 11
WHICH REFERENCE MAY BE MADE IN
Reference numbers
Email: copyright@iso.org
NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 21135:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
IULTCS/IUC 442:2023(E)
Published in Switzerland
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
ii
  © ISO 2023 – All rights reserved
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023

---------------------- Page: 4 ----------------------
oSIST prEN ISO 21135:2023
ISO/DIS 21135:2023(E)
IULTCS/IUC 442:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references .
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

This May Also Interest You

CEN
EN ISO 20137:2023(Main)
Leather - Chemical tests - Guidelines for testing critical chemicals in leather (ISO 20137:2023)
SIST EN ISO 20137:2024

This document provides lists of chemicals that have already been detected in leather and guidelines for applying the available chemical test methods for leather. This information can be used by those involved in setting specifications for leather, especially for those parameters relating to restricted chemical substances.
Generic lists of restricted chemicals used on the market contain many substances that are not relevant to the leather industry. Those chemical substances that are not mentioned in this document do not need to be determined, thus avoiding unnecessary analytical costs.
NOTE            Due to the constantly changing legal requirements and toxicological evaluation of chemical substances, this document cannot address all potentially critical substances.

  • Standard
    23 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 16484:2023(Main)
Leather - Requirements for the determination of the origin of leather production
SIST EN 16484:2023

This document defines the requirements that are necessary to confer the origin of leather production based on the principle of the last substantial transformation according to Non-Preferential Rules of Origin.
This document is applicable to leather only and it is applicable also to leather with hair. Furs are excluded.
The country of origin of raw hides and skins isn’t relevant for the application of this document.

  • Standard
    10 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 17900:2023(Main)
Leather - Standard data for the calculation of leather density
SIST EN 17900:2023

This document specifies average values of leather density, depending on animal origin and thickness of finished leather, to be used for the calculation of LCA. This document is applicable to bovine, caprine and ovine types of leather.
This document does not apply to vegetable sole leather which is traded by weight.

  • Standard
    7 pages
    English language
    sale 10% off
    e-Library read for
    1 day
  • Standard
    7 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN ISO 11936:2023(Main)
Leather - Determination of total content of certain bisphenols (ISO 11936:2023)
SIST EN ISO 11936:2023

This document specifies a method for determining the total content (solvent extractible) of the following bisphenols in leather:
—     bisphenol A;
—     bisphenol B;
—     bisphenol F;
—     bisphenol S.
This method requires the use of liquid chromatography (LC) with either a single quadrupole mass spectrometer (MS), a triple quadrupole mass spectrometer (MS/MS), an ultraviolet (UV) detector, a diode array detector (DAD) or a fluorescence detector (FLD) to identify and quantify the bisphenols.
NOTE            This method can also be used for other bisphenols if they are validated by the laboratory.

  • Standard
    18 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN ISO 23702-1:2023(Main)
Leather - Per- and polyfluoroalkyl substances - Part 1: Determination of non-volatile compounds by extraction method using liquid chromatography (ISO 23702-1:2023)
SIST EN ISO 23702-1:2023

This document specifies a test method for detection and quantification of extractable non-volatile per- and polyfluoroalkyl substances (PFAS) in leather and coated leather by solvent extraction and liquid chromatography coupled with mass spectrometry.
This document, taking into account the three-dimensional distribution of the fibres within leather, makes the evaluation of the PFAS with respect to the mass.
PFAS substances categories and applications are listed in Annex A, Table A.1. Classes of PFAS regulated compounds listed in Annex B, Table B.1, include acids, telomers, sulfonates and sulphonamide alcohols. Classes of other non-regulated compounds that can be determined by this document are listed in Annex C, Table C.1.
NOTE 1        By applying the method specified in this document, the concentration of free fluorotelomer alcohols (FTOH) in a sample cannot be correctly quantified if perfluoropolymers that release FTOH due to transesterification with the extraction solvent methanol are present in the sample.
NOTE 2        Some regulations (e.g. Reference [4]) also restrict perfluoropolymers having a linear or branched perfluoroheptyl group with the moiety (C7F15)C as one of the structural elements that can degrade to PFOA, e.g. polymers containing 2-perfluorooctylethanol (8:2 FTOH, CAS Registry Number® 678-39-7) bonded as esters. To determine whether these perfluoropolymers are intentionally present, it could be necessary to introduce an alkaline hydrolysis method to remove the 8:2 FTOH side-chain from the polymer. In addition, other FTOH, e.g. 6:2 FTOH or 10:2 FTOH, will be released from relevant perfluoropolymers by alkaline hydrolysis.

  • Standard
    34 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN ISO 18218-1:2023(Main)
Leather - Determination of ethoxylated alkylphenols (APEO) - Part 1: Direct method (ISO 18218-1:2023)
SIST EN ISO 18218-1:2023

This document is a method for determining ethoxylated alkylphenols (APEO) [nonyphenol ethoxylate (NPEOn, where 2 ≤ n ≤ 16) and octylphenol ethoxylate (OPEOn, where 2 ≤ n ≤ 16)] in leather. This direct method is especially suitable when a larger number of leather samples are to be checked for the presence of ethoxylated alkylphenols.
This method requires the use of liquid chromatography (LC) with a triple quadrupole mass spectrometer (MS/MS) to identify and quantify the ethoxylated alkylphenols.
NOTE 1        In the leather industry, the most commonly used ethoxylated alkylphenol is the NPEO, with an average of 9 EO. It has an optimum cloud point in water for the typical leather processing temperatures of 40 °C to 55 °C.
NOTE 2        This document and ISO 18218-2 use different solvents for the extraction of the ethoxylated alkylphenols from leather. Consequently, the two analytical methods are expected to give similar trends but not necessarily the same absolute result for the ethoxylated alkylphenol content in leather.

  • Standard
    18 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN ISO 2418:2023(Main)
Leather - Chemical, physical, mechanical and fastness tests - Position and preparation of specimens for testing (ISO 2418:2023)
SIST EN ISO 2418:2023

This document specifies the position of laboratory test specimens within a piece of leather and the method of labelling and marking the laboratory test specimens for future identification. In addition, this document specifies the design of press knives for cutting test pieces and the preparation of test pieces.
It is applicable to all types of leather derived from mammals, irrespective of the tanning used.
It is not applicable to leathers derived from birds, fish, reptiles or furs.

  • Standard
    18 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN ISO 14268:2023(Main)
Leather - Physical and mechanical tests - Determination of water vapour permeability (ISO 14268:2023)
SIST EN ISO 14268:2023

This document describes a method for determining the water vapour permeability of leather and provides alternative methods of sample preparation and for the measurement procedure.

  • Standard
    16 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN ISO 19076:2023(Main)
Leather - Measurement of leather surface - Electronic techniques (ISO 19076:2023)
SIST EN ISO 19076:2023

This document provides a method for the measurement of the surface of leather or leather parts by the use of electronic measuring machines.
It applies to the measurement of leather (or leather parts) fulfilling the following requirements:
—    flexible leather, finished or unfinished dry leather;
—    flexible wet leather (see Annex E);
—    flexibility, such as to allow full distension on the measuring line or surface.

  • Standard
    27 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN ISO 7906:2022(Main)
Leather - Tests for colour fastness - General principles of testing (ISO 7906:2022)
SIST EN ISO 7906:2023

This document specifies general principles on colour fastness evaluation tests for leather, as listed in Annex A.
Procedures included in this document are common to most of the fastness test methods.
This document provides a common basis for testing and reporting colour fastness. The uses and limitations of the methods are pointed out, several terms are defined, an outline of the drafting of the methods is given and the contents of the clauses describing the methods are discussed.
Procedures common to a number of the methods are discussed briefly.
Colour fastness means the resistance of the colour to the different agents to which these materials can be exposed during manufacture and their subsequent use.
The change in colour of leather and staining of undyed adjacent fabrics or other materials are assessed as fastness ratings.
Other visible changes in the leather under test, for example surface appearance, change in gloss or shrinkage, are considered as separate properties and reported as such.
The leather fastness test methods can be used not only for assessing leather and related materials, such as coated leather and leather board, but also for the eventual assessment of the colour fastness of leather dyes. When such a method is so used, the dye is applied to a specified retanned leather or crust leather in defined depths of colour by stated procedures and the material is then tested in the usual way.

  • Standard
    18 pages
    English language
    sale 10% off
    e-Library read for
    1 day