DIN 53402 : 1990被替代
DETERMINATION OF ACID VALUE
出版：German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频
The method described serve to determine the acid value of resins 1), oils, fats, fatty acids, solvents 2), plasticizers 2) and other industrial organic substances and mixtures of such substances. In the method described in sub-clause 7.1, potassium hydroxide reacts only partially with any acid anhydrides so that the values determined is to be considered a partial acid value whereas, for determining the (total) acid value, the method described in sub-clause 7.2 is to be used. The methods are not applicable to substances which are neutralized by, and react with, alkali in other ways.
ISO 7537 : 1997(R2018) - Identical
ISO 3682 : 1996 - Corresponds
ISO 7537 : 1997(R2018) - Identical
