标准-分析测试百科网

GB/T 41439-2022 纸、纸板和纸浆盐水提取物pH的测定

本文件描述了纸、纸板和纸浆的盐水提取物pH的测定方法。本文件适用于纸、纸板和纸浆。

Paper, board and pulps—Determination of pH of salted water extracts

ICS: 85.040;85.060
CCS: Y30
发布: 2022-04-15
实施: 2022-11-01 00:00:00.0

GB/T 2678.2-2021 纸、纸板和纸浆水溶性氯化物的测定

本文件描述了纸、纸板和纸浆中水溶性氯化物的硝酸汞法、硝酸银电位滴定法和离子色谱法的测定方法。本文件适用于各种纸、纸板和纸浆。

Paper, board and pulps—Determination of water-soluble chlorides

ICS: 85.040;85.060
CCS: Y30
发布: 2021-08-20
实施: 2022-09-01 00:00:00.0

GB/T 40442-2021 纸、纸板和纸浆纤维组成分析中质量因子的测定

本文件描述了分析纸、纸板和纸浆的纤维组成时质量因子的测定方法,包括比对法和纤维粗度法。本文件适用于由纯种纤维组成的纸、纸板和纸浆。注:纯种纤维指的是在单一种类的纤维中质量因子存在显著差异的其他纤维含量不超过5%。

Paper, board and pulps—Determination of weight factor in fibre furnish analysis

ICS: 85.040;85.060
CCS: Y30
发布: 2021-08-20
实施: 2022-03-01 00:00:00.0

GB/T 7974-2002 纸、纸板和纸浆亮度(白度)的测定漫射/垂直法

本标准以模拟D光源、漫射/垂直照明观测条件下，纸、纸板和纸浆对主波长457nm蓝光的漫反射因数（%）表示亮度（白度）测定结果。对含有荧光增白剂的试样，亦可测定计算出荧光增白效果即荧光亮度（白度）。本标准方法中有关量值传递方法，所用仪器的光谱和几何特性等各项基础性内容均规定在GB/T 7973《纸浆、纸及纸板漫反射因数测定法（漫射/垂直法）》中，因此本标准应和GB/T 7973《纸浆、纸及纸板漫反射因数测定法（漫射/垂直法）》一起阅读并执行。

Paper,board and pulp-Measurement of brightness--Diff/Geometry

ICS: 85.040;85.060
CCS: Y30
发布: 2002-10-15
实施: 2003-04-01

JIS P 8148:2018 纸张、纸板和纸浆.蓝色漫反射系数的测量.室内日光条件(ISO 亮度)

Paper, board and pulps -- Measurement of diffuse blue reflectance factor -- Indoor daylight conditions (ISO brightness)

ICS: 85.040;85.060
CCS: Y30
发布: 2018-02-20
实施

BS ISO 11480:2017 纸浆、纸和纸板.全氯和有机氯的测定

Pulp, paper and board. Determination of total chlorine and organically bound chlorine

ICS: 85.040;85.060
CCS: Y30
发布: 2017-06-29
实施: 2017-06-29

BS ISO 9416:2017 纸.光散射和吸收系数的测定(运用库贝尔卡-蒙克(Kubelka-Munk)理论)

Paper. Determination of light scattering and absorption coefficients (using Kubelka-Munk theory)

ICS: 85.040;85.060
CCS: Y30
发布: 2017-06-28
实施: 2017-06-28

ISO 11480:2017 纸浆、纸和纸板.总氯和有机氯的测定

This document specifies two alternative procedures for the determination of total and organically bound chlorine in pulp, paper and board. It is applicable to all types of pulp, paper and board. The lower limit of the determination is about 20 mg/kg.

Pulp, paper and board - Determination of total chlorine and organically bound chlorine

ICS: 85.040;85.060
CCS: Y30
发布: 2017-05
实施

ISO 9416:2017 纸.光散射和吸光系数的测定(使用库贝尔卡-蒙克理论)

This document specifies a method for the calculation of light-scattering and light-absorption coefficients based upon diffuse reflectance measurements made under the conditions specified in ISO 2469 using the colour matching function ȳ(λ) and CIE illuminant C. It is emphasized that the strict evaluation of the light-scattering and light-absorption coefficients requires conditions which cannot be achieved with the instrumentation specified here. The values obtained by application of this document are dependent on the application of the Kubelka-Munk equations, not to full reflectance data but to reflectance factor data obtained using the specified d/0° geometry and a gloss trap. The use of the method is restricted to white and near-white uncoated papers with an opacity less than about 95 %. Paper that has been treated with a fluorescent dyestuff or that exhibits significant fluorescence can only be dealt with if a filter with a cut-off wavelength of 420 nm is used to eliminate all the fluorescence effect in the UVex(420) mode. NOTE 1 The residual UV-level in the instrument may depend on whether the instrument is adjusted to UV(C) or UV(D65) conditions prior to switching to the UVex(420) mode, but it is considered that this uncertainty in the residual level can be ignored in the application of this document. NOTE 2 Although this method is restricted to paper, it can be applied to pulp sheets, although this is not in accordance with this document. In general, when pulps are tested, the light-absorption coefficient at 457 nm corresponding to the ISO brightness value or the spectral absorption coefficients are of greater interest than the weighted value standardized in this document.

Paper - Determination of light scattering and absorption coefficients (using Kubelka-Munk theory)