This standard specifies the determination of paper and board dimensions, deflection. This standard applies to all kinds of paper and paperboard on flat sheets, rolls and reels, and does not apply to wrinkled paper.
GB/T 451.1-2002 history
2002GB/T 451.1-2002 Paper and board--Determination of size and deviation
1989GB/T 451.1-1989 Method for determination of dimensions and deflection of paper and board