ISO 638-2:2022 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2部分：纤维素纳米材料的悬浮液

标准编号：ISO 638-2:2022

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2部分：纤维素纳米材料的悬浮液

英文名称：Paper, board, pulps and cellulosic nanomaterials — Determination of dry matter content by oven-drying method — Part 2: Suspensions of cellulosic nanomaterials

发布日期：2022-03

标准范围

本文件规定了测定纤维素纳米材料悬浮液中干物质含量的烘箱干燥方法。本程序适用于纤维素纳米材料悬浮液，该悬浮液不含除水以外的任何可感知数量的材料，在105°C？2°C的温度下易挥发。例如，在实验室进行化学和物理试验的纤维素纳米材料悬浮液样品中，当需要同时测定干物质含量时。注？本文件确定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，应去除溶解固体，即。g、 通过清洗或透析，注意保留所有纤维素材料。

This document specifies an oven-drying method for the determination of the dry matter content in suspensions of cellulosic nanomaterials. The procedure is applicable to cellulosic nanomaterial suspensions 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 cellulosic nanomaterial suspensions samples taken for chemical and physical tests in the laboratory, when a concurrent determination of dry matter content is required.NOTE      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.

标准预览图