ASTM D4274-23 82 PDF Download
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.
1.1.1 Test Method A-Acetic Anhydride Pressure Bottle, recommended for polyesters.
Product Details
- Published:
- 03/15/2023
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