ISO/DIS 23556.2

Performance test method for diesel engine soot-removal devices in lubricating oils -- Initial filtration efficiency

Essai de performance de filtration pour moteurs diesel -- Séparation des impuretés dans l'huile pour lubrification

Standards Content (sample)

DRAFT INTERNATIONAL STANDARD ISO/DIS 23556.2
ISO/TC 70/SC 7 Secretariat: BSI
Voting begins on: Voting terminates on:
2005-11-01 2006-01-02

INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION

Performance test method for diesel engine soot-removal devices
in lubricating oils — Initial filtration efficiency

Essai de performance de filtration pour moteurs diesel — Séparation des impuretés dans l'huile pour

lubrification
ICS 27.020

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© International Organization for Standardization, 2005
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ISO/DIS 23556.2
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ii ISO 2005 – All rights reserved
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ISO/DIS 23556.2
Contents

Foreword ..................................................................................................................................................... iv

Introduction.................................................................................................................................................. v

1 Scope............................................................................................................................................... 1

2 Normative references...................................................................................................................... 1

3 Terms and definitions ..................................................................................................................... 1

4 Symbols (and abbreviated terms)................................................................................................... 2

5 Test equipment................................................................................................................................ 2

6 Test materials.................................................................................................................................. 4

7 Accuracy of measuring instruments and test conditions ............................................................. 4

8 Test rig validation............................................................................................................................ 5

9 Multipass test procedure ................................................................................................................ 5

Annex A (normative) Method to determine oil cleanliness......................................................................... 7

Annex B (normative) Specification for test soot slurry .............................................................................. 8

Annex C (normative) Test oil requirements ................................................................................................ 9

Annex D (normative) Test data presentation .............................................................................................10

Annex E (normative) Test data calculations ..............................................................................................11

Annex F (normative) Test report.................................................................................................................12

Bibliography................................................................................................................................................13

© ISO 2005 – All rights reserved iii
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ISO/DIS 23556.2
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.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.

Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.

Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.

International Standard ISO 23556 was prepared by Technical Committee ISO/TC 70, Internal combustion engines,

Subcommittee SC 7, Tests for lubricating oil filters.
iv © ISO 2005 – All rights reserved
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ISO/DIS 23556.2
Introduction

ISO/DIS 23556 establishes standard test procedures for measuring the initial filtration soot-removal efficiency of

single-, multiple-stage, centrifugal and other soot-removal devices (SRD) for internal combustion engines.

© ISO 2005 – All rights reserved v
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DRAFT INTERNATIONAL STANDARD ISO/DIS 23556.2
Performance test method for diesel engine soot-removal devices
in lubricating oils – Initial filtration efficiency
1 Scope

This International Standard specifies a multipass soot-filtration test method using batch thermal gravimetric

analysis (TGA), continuous online Fourier Transformation Infrared (FTIR), or other approved soot-measuring

techniques for evaluating the initial filtration efficiency of single-, multiple-stage, centrifugal and other soot-removal

devices (SRD) for internal combustion engines submitted to a constant flow rate of test liquid. The test procedure

determines time-weighted average initial soot-removal efficiency for soot-removal devices. This test method is

intended for application to SRD having a rated flow between 2 l/min to 75 l/min.
2 Normative references

The following reference documents are indispensible for the application 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.
API SL/ILSAC GF-3, July 2001

ASTM E1131-03, Standard Test Method for Compositional Analysis by Thermogravimetry

DHD-1:2001, Global Performance Specification of Diesel Engine Oil

ISO 1219-1, Fluid power systems and components – Graphic symbols and circuit diagrams – Part 1: Graphic

symbols

ISO 3968, Hydraulic fluid power – Filters – Evaluation of pressure drop versus flow characteristics

ISO 4405, Hydraulic fluid power – Fluid contamination – Determination of particulate contamination by the

gravimetric method

ISO 11841-1:2000, Road vehicles and internal combustion engines – Filter vocabulary – Part 1: Definitions of filters

and filter components

ISO 11841-2:2000, Road vehicles and internal combustion engines – Filter vocabulary – Part 2: Definitions of

characteristics of filters and their components
SAE J300:2004, Engine Oil Viscosity Classification
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 11841-1:2000, ISO 11841-2:2000 and

the following apply.
© ISO 2005 – All rights reserved 1
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ISO/DIS 23556.2
3.1
soot-removal device (SRD)
device intended to remove soot from lubricating oil

NOTE SRDs include include single-, multiple-stage, centrifugal and other devices.

3.2
soot contaminant

carbon-based contaminant produced to simulate soot generated from a diesel engine

3.3
multipass test

test that consists ofre-circulating unfiltered fluid through the soot-removal device

3.4
base upstream gravimetric level
upstream contaminant concentration if no contaminant is recirculated
3.5
soot-removal device efficiency

ability of the soot-removal device to retain particles expressed as the time weighted average

3.6
total circuit volume

total volume of the circuit with a straight section of pipe plus the volume contained in

...