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ISO 26603:2026

Plastics — Aromatic isocyanates for use in the production of polyurethanes — Determination of total chlorine

Apr 8, 2026

General information

60.60     Apr 8, 2026

ISO

ISO/TC 61/SC 12

International Standard

83.080.10  

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Scope

This document specifies the determination of the total chlorine content of aromatic isocyanates used in the preparation of polyurethanes.
The difference between the total chlorine content and the hydrolyzable chlorine content (see ISO 15028) is a measure of the process solvents left in the product. All the test methods are applicable to a variety of organic compounds, including aliphatic isocyanates, but the amount of sample used might need to be adjusted.
These test methods can be used for research or for quality control.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 26603:2017

NOW

PUBLISHED
ISO 26603:2026
60.60 Standard published
Apr 8, 2026