
Plastics - Cellulose Acetate In Dilute Solution - Determination Of Viscosity Number And Viscosity Ratio
出版:Nederlands Normalisatie Instituut

專家解讀視頻
基本信息
標準編號: NEN ISO 1157:1992
發布時間:1992/5/1 0:00:00
標準類別:Standard
出版單位:Nederlands Normalisatie Instituut
標準頁數:4
標準簡介
Defines a method for determining the viscosity number and viscosity ratio of cellulose acetate in dilute solution in a mixture of dichloromethane and methanol. Applies to cellulose acetate with not less than 50% acetic acid yield.
替代本標準的新標準
等同采用的國際標準
ISO 1157:1990 - Identical