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ASTM D4274-21

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ASTM D4274-21

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Standard Test Methods for Testing Polyurethane Raw Materials: Determination of Hydroxyl Numbers of Polyols
standard by ASTM International, 07/01/2021

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Description

1.1”These test methods measure the hydroxyl groups in polyester and polyether polyols containing primary and secondary hydroxyl groups. They also apply to many other hydroxyl-containing substances.

1.1.1Test Method A”’Acetic Anhydride Pressure Bottle, recommended for polyesters.

Product Details

Published:
07/01/2021
Number of Pages:
10
File Size:
1 file , 120 KB
Redline File Size:
2 files , 230 KB