DIN 53728-1:1970-01
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
TESTING OF PLASTICS - DETERMINATION OF VISCOSITY OF SOLUTIONS - CELLULOSE ACETATE IN DILUTE SOLUTION
Hardcopy , PDF
01-09-1999
English
12-01-2013
The method is used for determining the viscosity ratio (relative viscosity) and the viscosity number of cellulose acetate in a dilute solution containing a mixture of methylene chloride and methanol as the solvent. It is applicable to cellulose acetate containing not less than 50% by wt. of acetic acid. If the cellulose acetate to be tested contains plastiziers, fillers or other additives which affect the viscosity measurement, special test methods shall be agreed.
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