GB/T 454-2020.Paper-Determination of bursting strength. 5.1.2一个夹盘同一个铰链或一个相似装置进行连接,以保证夹盘压力分布均匀。 5.1.3在施加测试负荷时，上下夹盘的环形孔应是同心的,其最大误差应不大于0.25mm。夹盘表面应平整且彼此平

GB/T 454-2020.Paper-Determination of bursting strength. 5.1.2一个夹盘同一个铰链或一个相似装置进行连接,以保证夹盘压力分布均匀。 5.1.3在施加测试负荷时，上下夹盘的环形孔应是同心的,其最大误差应不大于0.25mm。夹盘表面应平整且彼此平

GB/T 2679.1-2020.Paper-Determination of tasmitance Diffe rfletance measurement. 5仪器设备 5.1: 反射光度计 仪器的几何特性、光学特性和光谱特性应符合GB/T 7973的规定,具备亮度因数测定的功能,并按GB/T 7

GB/T 24328.1-2020.Tissue paper and tissue products-Part 1:General guidance on terms. 3.16加工converting在造纸过程完成后生产卫生纸制品(3.58)的处理或操作过程。 注:例如,退卷和复卷,将卫生纸原纸叠

GB/T 24328.3-2020.Tissue paper and tissue products- Part 3: Determination of tensile strength, stretch at maximum force and tensile energy absorption.

GB/T 24328.3-2020.Tissue paper and tissue products- Part 3: Determination of tensile strength, stretch at maximum force and tensile energy absorption.

GB/T 24328.2-2020.Tissue paper and tissue products- Part 2 : Determination of thickness，bulking thickness and apparent bulk density and bulk. GB/T2432

GB/T 24328.12-2020.Tissue paper and tissue products-Part 12: Determination of optical properties-Determination of opacity- -Diffuse reflectance method

GB/T 147-2020.Untrimmed sizes of printing, writing and drawing paper. GB/T 147规定了印刷、书写和绘图用原纸的尺寸和方向的表示方法、尺寸和纵向的表示以及偏差。 GB/T 147适用于印刷、书写和绘图用原纸的尺寸。 2规范性引

GB/T 39951-2021.Evaluation method for degradability of disposable paper products. GB/T 39951规定了--次性纸制品在需氧堆肥条件下生物分解性能.崩解程度和生态毒性的评价方法。 GB/T 39951适用于纸尿裤(