EN ISO 1157-1999 标准详情
- 标准号:EN ISO 1157-1999
- 中文标题:塑料.稀释溶液中的醋酸纤维素.粘度值和粘度比的测定
- 英文标题:plastics - cellulose acetate in dilute solution - determination of viscosity number and viscosity ratio iso 1157: 1990
- 标准类别:欧盟标准EN
- 发布日期:1999-06-01
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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