ISO 9795:2023 木质素 硫酸盐木质素、苏打木质素和水解木质素中无机物含量的测定

标准编号：ISO 9795:2023

中文名称：木质素 硫酸盐木质素、苏打木质素和水解木质素中无机物含量的测定

英文名称：Lignins — Determination of inorganics content in kraft lignin, soda lignin and hydrolysis lignin

发布日期：2023-12

标准范围

该方法描述了测定硫酸盐、苏打和水解木质素中无机物含量的程序。该方法适用于从硫酸盐制浆工艺、苏打制浆工艺分离的木质素或通过生物质水解获得的木质素。对于酸形式的硫酸盐木质素、苏打木质素和水解木质素，无机物含量由样品的灰分含量测定。对于碱形式的硫酸盐木质素，无机物含量由钙、镁、锰、铁、铜、钠和钾的含量之和确定。

This method describes procedures for the determination of inorganics content in kraft, soda, and hydrolysis lignin. The method is applicable to lignin isolated from a kraft pulping process, a soda pulping process, or lignin obtained by hydrolysis of biomass.

For kraft lignin in the acid form, soda lignin, and hydrolysis lignin, the inorganics content is determined from the ash content of the sample. For kraft lignin in the base form, the inorganics content is determined from the sum of the contents of calcium, magnesium, manganese, iron, copper, sodium and potassium.

标准预览图