Conclusion:The measurement and calculation of intrinsic viscosity by JP and EP are more rigid than that by ChP,but the method of ChP is fast,simple and is propitious to manufacture.

• 结论:日本药局方及欧洲药典对特性粘数的测定及计算方法较中国药典严谨,但中国药典的一点法能快速解决生产上测定溶液的特性粘数的要求。