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ASTM D 4663 : 2015 : REDLINE

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Test Method for Polyurethane Raw Materials: Determination of Hydrolyzable Chlorine of Isocyanates
Available format(s)

PDF

Superseded date

06-22-2020

Language(s)

English

Published date

05-01-2015

CONTAINED IN VOL. 08.03, 2015 Defines the hydrolyzable chlorine content of toluene-2,4-diisocyanate, toluene-2,6-diisocyanate, or mixtures of the two.

1.1This test method determines the hydrolyzable chlorine content of toluene-2,4-diisocyanate, toluene-2,6-diisocyanate, or mixtures of the two. It is acceptable to apply this test method to other isocyanates of suitable solubility. (See Note 1.) The main sources of hydrolyzable chlorine in the isocyanates are carbamoyl chloride and dissolved phosgene. Both of these compounds react with alcohols and water, forming ureas, carbamates, carbon dioxide, and hydrochloric acid. (See Note 2.)

1.2This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Note 1:It is possible that this test method is applicable to crude polymeric isocyanates. However, the precision with crude polymeric isocyanates has not been established.

Note 2:This standard is identical to ISO 15028.

Committee
D 20
DocumentType
Redline
Pages
4
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy

ASTM D 1786 : 2016 : REDLINE Standard Specification for Toluene Diisocyanate
ISO 15028:2014 Plastics Aromatic isocyanates for use in the production of polyurethanes Determination of hydrolysable chlorine
BS ISO 15028:2014 Plastics. Aromatic isocyanates for use in the production of polyurethanes. Determination of hydrolysable chlorine

ISO 15028:2014 Plastics Aromatic isocyanates for use in the production of polyurethanes Determination of hydrolysable chlorine

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