ISO 638-1:2022 纸、纸板、纸浆和纤维素纳米材料 用烘箱干燥法测定干物质含量 第1部分：固体材料
标准编号：ISO 638-1:2022
中文名称：纸、纸板、纸浆和纤维素纳米材料 用烘箱干燥法测定干物质含量 第1部分：固体材料
英文名称：Paper, board, pulps and cellulosic nanomaterials — Determination of dry matter content by oven-drying method — Part 1: Materials in solid form
发布日期：2022-03
标准范围
本文件规定了一种烘箱干燥方法，用于测定纸、纸板、纸浆和固体形式的纤维素纳米材料中的干物质含量，这些材料都可以由原始材料和/或回收材料制成。它也适用于测定回收纸和纸板的干物质含量。该程序适用于纸张、纸板、纸浆和纤维素纳米材料，这些材料不包含除在105°C温度下易挥发的水以外的任何可感知数量的材料摄氏度±？2.°C。例如，当需要同时测定干物质含量时，用于在实验室进行化学和物理测试的纸浆、纸张、纸板和纤维素纳米材料样品。该方法不适用于测定纸浆的干物质含量或测定纸浆批次的可销售质量。注意1.ISO 638-2规定了测定纤维素纳米材料悬浮液干物质含量的烘箱干燥方法，ISO287规定了大量纸和纸板含水量的测定；ISO4119规定了纸浆浆料浓度的测定；ISO801系列规定了批量销售质量的确定。注意2.本文件确定了样品的总干物质含量，包括任何溶解固体。如果只需要不含溶解固体的纤维素材料含量，则在测量干物质含量之前，去除溶解固体，例如通过洗涤或透析，注意保留所有纤维素材料；在样品可过滤且不损失纤维素固体的情况下，ISO4119可用于测定浆料稠度（固体形式的纤维素材料含量）。
This document specifies an oven-drying method for the determination of the dry matter content in paper, board, pulp and cellulosic nanomaterials in solid form, which all can be produced from virgin and /or recycled materials.It is also applicable to the determination of the dry matter content of paper and board for recycling.The procedure is applicable to paper, board, and pulp and cellulosic nanomaterials which do not contain any appreciable quantities of materials other than water that are volatile at the temperature of 105 °C ± 2 °C. It is used, for example, in the case of pulp, paper, and board and cellulosic nanomaterial samples taken for chemical and physical tests in the laboratory, when a concurrent determination of dry matter content is required.This method is not applicable to the determination of the dry matter content of slush pulp or to the determination of the saleable mass of pulp lots.NOTE 1 ISO 638-2[1] specifies an oven-drying method for the determination of the dry matter content of suspensions of cellulosic nanomaterials, ISO 287[2] specifies the determination of the moisture content of a lot of paper and board; ISO 4119[3] specifies the determination of stock concentration of pulps; the ISO 801 series[4] specifies the determination of the saleable mass in lots.NOTE 2 This document determines the total dry matter content of the sample, including any dissolved solids. If only the cellulosic material content free of dissolved solids is desired, dissolved solids are removed prior to measuring the dry matter content, e.g. by washing or dialysis, taking care to retain all cellulosic material; in cases where the sample is filterable without loss of cellulosic solids, ISO 4119[3] can be used to determine the stock consistency (content of cellulosic material in solid form).
标准预览图
