NS EN ISO 1157 : 1ED 1999
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
PLASTICS - CELLULOSE ACETATE IN DILUTE SOLUTION - DETERMINATION OF VISCOSITY NUMBER AND VISCOSITY RATIO
23-07-2013
12-01-2013
Defines a procedure which determines viscosity number and ratio of cellulose acetate in dilute solution in a dichloromethane and methanol mixture. Covers cellulose acetate with an acetic yield of not less than 50%.
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