DIN 53729:1968-11
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
TESTING OF PLASTICS; DETERMINATION OF FREE ACID IN NON-PLASTICIZED CELLULOSE ACETATE
Hardcopy , PDF
01-02-2000
English
01-01-1968
The method used for determining the free acid in non-plasticized cellulose acetate. In this respect the acid extractable by water and the acid caused by the possible presence of carboxyl groups is detected. The method cannot be applied to cellulose acetates containing additives which influence the testing.
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