Foreword

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This document was prepared by Technical Committee ISO/TC 256, Pigments, dyestuffs and extenders.

This third edition cancels and replaces the second edition (ISO 473:1982), which has been technically revised. The main changes compared to the previous edition are as follows:

— a new specification of lithopone with a 20 % zinc sulphide (ZnS) content (lithopone 20 %) has been included;
— a new method of test, Method B (Na₂EDTA titration method) has been introduced;
— the text of the document has been editorially revised.

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.

BS EN ISO 473:2020

Lithopone pigments. General requirements and methods of testing

Current

Published:

31 Oct 2020