China 'GB/T 23144-2023
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 23144-2023
Paper and paperboard Determination of bending stiffness General principles of the two-point, three-point and four-point methods 纸和纸板 弯曲挺度的测定 两点法、三点法和四点法的通用原理
Issued Date:2023.12.28
Implemented Date:2024.7.1
Issued by:
The Standardization Administration of the People's Republic of China