This document specifies the methods to determine the weight factor when analyzing fiber composition of paper, board and pulp, including comparison method and fiber coarseness method. This document applies to paper, board and pulp composed of pure-bred fibers. NOTE: Pure-bred fiber refers to a single type of fiber with a significant difference in weight factor of no more than 5% of other fibers.
Basic Data
Standard ID
GB/T 40442-2021 (GB/T40442-2021)
Description (Translated English)
Paper, board and pulps - Determination of weight factor in fibre furnish analysis
Sector / Industry
National Standard (Recommended)
Classification of Chinese Standard
Y30
Word Count Estimation
10,193
Issuing agency(ies)
State Administration for Market Regulation, China National Standardization Administration
