ASTM D 4274 : 2016
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Standard Test Methods for Testing Polyurethane Raw Materials: Determination of Hydroxyl Numbers of Polyols
Hardcopy , PDF
08-13-2021
English
04-08-2016
These test methods measure the hydroxyl groups in polyester and polyether polyols containing primary and secondary hydroxyl groups.
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