ASTM D4663-20

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ASTM D4663-20

$22.00

Standard Test Method for Polyurethane Raw Materials: Determination of Hydrolyzable Chlorine of Isocyanates
standard by ASTM International, 04/01/2020

Format: PDF      In Stock
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Description

1.1 This 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.)

Product Details

Published:
04/01/2020
Number of Pages:
3
File Size:
1 file , 66 KB
Redline File Size:
2 files , 130 KB