กระดาษและผลิตภัณฑ์กระดาษ
เอกสารมาตรฐาน
สหรัฐอเมริกา
TAPPI
T 272 sp-21
Forming handsheets for reflectance testing of pulp (sheet machine procedure)
2021
6
offline
This practice describes the procedure using the TAPPI sheet machine for preparing reflectance-testing
specimen sheets of bleached or unbleached pulp whose fibers are readily dispersed in water. This practice permits the
preparation of sheets having a smooth and reproducible surface for reflectance measurements with a minimum of
washing or contamination of the sample. ....