Measurement of hygroexpansivity of paper and board-Method for measurement of hygroexpansivity up to a maximum relative humidity of 86%
纸和纸板湿膨胀性的测量 最大相对湿度86%以下湿膨胀率的测量方法
Method for the determination when subjected to change in the relative humidity with which it is in equilibrium from 33% to 86%.Cross References:BS 3430BS 3431BS 6712:Part 1