Sodium polyacrylate is measured by adding pure water and adjusting pH to ｐH12～12.5・・・・

Moisture titration using Karl Fischer reagent is popularly practiced water determination worldwide as the most reliable method.

Sodium polyacrylate is measured by adding pure water and adjusting pH to ｐH12～12.5・・・・

Measurement of isocyanate content is standardized by the below quoted test methods.

JIS K 2501-2003 specifies standard test method for measurement of acid number of petroleum products・・・・