GB/T 458-2008.Paper and board-Determination of air permeance. 1范围 GB/T 458规定了纸和纸板透气度的三种测定方法:葛尔莱法、肖伯尔...
GB/T 458-2002 纸和纸板透气度的测定(肖伯尔法)
GB/T 458-2002.Paper and board -Determination of air permeance (Schopper method). 1.范團 GB/T 458规定了纸和纸...