กระดาษและผลิตภัณฑ์กระดาษ
เอกสารมาตรฐาน
สหรัฐอเมริกา
TAPPI
T 256 cm-21
Water-soluble chlorides in pulp and paper
2021
4
offline
This method is for the volumetric determination of water-extractable chloride in pulp or paper. The method is suitable for chloride content from 0.01% up to 1% but can be modified to extend this
range to a limited extent. It is not intended for electrical grade pulp or papers with chloride content less than 50 ppm.