Plastics -- Aromatic isocyanates for use in the production of polyurethanes -- Determination of hydrolysable chlorine

ISO 15028:2014 specifies a method for the determination of the hydrolysable-chlorine content of toluene-2,4-diisocyanate, toluene-2,6-diisocyanate or mixtures of the two. This test method may also be applied to other isocyanates of suitable solubility, such as crude or refined polymeric isocyanates.

Plastiques -- Isocyanates aromatiques pour utilisation dans la production de polyuréthannes -- Détermination du chlore hydrolysable

General Information

Status
Published
Publication Date
10-Feb-2014
Current Stage
6060 - International Standard published
Start Date
29-Jan-2014
Completion Date
11-Feb-2014
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ISO 15028:2014 - Plastics -- Aromatic isocyanates for use in the production of polyurethanes -- Determination of hydrolysable chlorine
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INTERNATIONAL ISO
STANDARD 15028
Second edition
2014-02-15
Plastics — Aromatic isocyanates for
use in the production of polyurethanes
— Determination of hydrolysable
chlorine
Plastiques — Isocyanates aromatiques pour utilisation dans
la production de polyuréthannes — Détermination du chlore
hydrolysable
Reference number
ISO 15028:2014(E)
ISO 2014
---------------------- Page: 1 ----------------------
ISO 15028:2014(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2014

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form

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Published in Switzerland
ii © ISO 2014 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 15028:2014(E)
Contents Page

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

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

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

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

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

4 Principle ........................................................................................................................................................................................................................ 1

5 Interference ............................................................................................................................................................................................................... 2

6 Sampling ........................................................................................................................................................................................................................ 2

7 Test conditions ....................................................................................................................................................................................................... 2

8 Reagents ........................................................................................................................................................................................................................ 2

9 Apparatus ..................................................................................................................................................................................................................... 2

10 Procedure..................................................................................................................................................................................................................... 3

11 Expression of results ........................................................................................................................................................................................ 3

12 Precision and bias ............................................................................................................................................................................................... 3

12.1 Precision ....................................................................................................................................................................................................... 3

12.2 Bias .................................................................................................................................................................................................................... 4

13 Test report ................................................................................................................................................................................................................... 4

Bibliography ................................................................................................................................................................................................................................ 5

© ISO 2014 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 15028:2014(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 documents 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).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. 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 on the meaning of ISO specific terms and expressions related to conformity

assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers

to Trade (TBT) see the following URL: Foreword - Supplementary information.

The committee responsible for this document is ISO/TC 61, Plastics, Subcommittee SC 12, Thermosetting

materials.

This second edition cancels and replaces the first edition (ISO 15028:2004), which has been technically

revised.
iv © ISO 2014 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 15028:2014(E)
Introduction

No International Standard for the determination of hydrolysable chlorine in isocyanates has been

published. The main sources of hydrolysable chlorine in isocyanates are carbamoyl chloride and dissolved

phosgene from the manufacturing process. Both of these compounds react with alcohols and water,

forming ureas, carbamates, carbon dioxide and hydrochloric acid. These acidic materials neutralize

basic catalysts used in polyurethane production, thus adversely affecting processing properties. This

test method is based on and is technically equivalent to ASTM D 4663.
© ISO 2014 – All rights reserved v
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 15028:2014(E)
Plastics — Aromatic isocyanates for use in the production
of polyurethanes — Determination of hydrolysable
chlorine

SAFETY STATEMENT — Persons using this document should be familiar with normal laborat

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