กระดาษและผลิตภัณฑ์กระดาษ
เอกสารมาตรฐาน
สหรัฐอเมริกา
TAPPI
T 431 cm-22
Ink absorbency of blotting paper
2022
3
offline
This method is used to determine the rate at which blotting papers absorb writing ink. It yields results
that have been found useful in predicting and specifying the absorptive quality of blotting papers. The method is based on the determination of the length of time required to absorb completely 1 mL
of a standard writing ink at 23°C (73.4°F) but is by analogy suitable for most writing inks and watery solutions.