กระดาษและผลิตภัณฑ์กระดาษ
เอกสารมาตรฐาน
สหรัฐอเมริกา
TAPPI
T 408 cm-22
Rosin in paper and paperboard
2022
7
offline
This method describes empirical procedures for the quantitative determination of rosin in paper and
paperboard. Total extractable resin includes rosin added as a sizing agent, natural resins from the pulp, fatty acids
and esters added as sizing and defoaming agents, and other natural and synthetic resins. The quantitative procedures aimed at determining rosin in the presence of volatile or non-volatile
neutral extractives will include as rosin any fatty acid present in the alcohol extract. ....