กระดาษและผลิตภัณฑ์กระดาษ
เอกสารมาตรฐาน
สหรัฐอเมริกา
TAPPI
T 502 cm-21
Equilibrium relative humidity of paper and paperboard
2021
5
offline
This method describes procedures for determining the equilibrium relative humidity of paper and
paperboard. Paper which is dimensionally stable at a particular relative humidity and temperature will remain
unchanged as long as this condition is maintained. Printers and paper converters can maintain a particular humidity
and temperature condition more easily than they can regulate the moisture content of the paper to adjust for a change
in its environment. Hence, for many purposes equilibrium relative humidity at a specified temperature is more
significant than the moisture content of the paper.