ISO 26603:2017 PDF

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. Both 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. NOTE This document is technically equivalent to ASTM D4661–03.

ISO 26603:2017 Referenced Document

ASTM D4661-03 Standard Test Methods for Polyurethane Raw Materials: Determination of Total Chlorine in Isocyanates*， 2024-04-20 Update
ISO 15028:2014 Plastics - Aromatic isocyanates for use in the production of polyurethanes - Determination of hydrolysable chlorine
ISO 3696:1987 Water for analytical laboratory use; Specification and test methods
ISO 385:2005 Laboratory glassware - Burettes
ISO 4787:2010 Laboratory glassware - Volumetric instruments - Methods for testing of capacity and for use
ISO 6353-1:1982 Reagents for chemical analysis; Part 1 : General test methods
ISO 6353-2:1983 Reagents for chemical analysis; Part 2 : Specifications; First series
ISO 6353-3:1987 Reagents for chemical analysis; Part 3 : Specifications; Second series
ISO 648:2008 Laboratory glassware - Single-volume pipettes

2017 ISO 26603:2017 Plastics - Aromatic isocyanates for use in the production of polyurethanes - Determination of total chlorine
2008 ISO 26603:2008 Plastics - Aromatic isocyanates for use in the production of polyurethanes - Determination of total chlorine