Methods of testing cellulose acetate flake Ingestion-build-189776 braids and knits

braids and knits

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After the addition of a known amount of fluoride

Rockwell hardness test

the reagents and the procedure to be used in conducting the neutral salt spray (NSS)

Methods of testing cellulose acetate flake Ingestion-build-189776 braids and knits1 Scope This standard describes methods of test for the following cellulose acetate flake properties: a) moisture content; b) ash content; c) acetic acid yield; d) bulk density; e) particle size distribution; f) free acidity; g) viscosity ratio of a 5 g L solution at 25 C; h) viscosity at a concentration of 60 g L; i) viscosity at 25 % concentration at 25 C; j) insoluble particles; k) original light absorption and change of light absorption after