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BS EN ISO 2554:1999
Plastics. Unsaturated polyester resins. Determination of hydroxyl value (British Standard)
This International Standard specifies a method for determining the hydroxyl value of unsaturated polyester resins.
In fact, this method determines the difference between the hydroxyl value and the acid value; it is therefore necessary to determine the total acid value separately, in order to calculate the hydroxyl value.
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British Standards Institution [bsi]
British Standards Institution [bsi]