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ISO 1599:1990

Current Revision

Plastics - Cellulose acetate - Determination of viscosity loss on moulding

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This method is suitable for cellulose acetate which does not contain additives, fillers, etc. which may interfere with the determination of viscosity. It is suitable for cellulose acetate having an acetic acid yield above 50 %. Cellulose acetate plasticized with dimethyl phthalate is moulded under specified conditions of temperature, pressure and time. After cooling, the moulding is ground up. The viscosity ratio of the ground material from the moulding and also that of the original cellulose acetate material are determined in accordance with ISO 1157. The percentage viscosity loss is calculated from the values of viscosity before and after moulding. This second edition cancels and replaces the first edition ISO 1599:1975.


SDO ISO: International Organization for Standardization
Document Number ISO 1599
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 61/SC 9/WG 16
Publish Date Document Id Type View
Not Available ISO 1599:1990 Revision