1.1 这些测试方法包括羧甲基纤维素钠的测试。 1.2 测试程序按以下顺序显示: 小节 潮湿 4 – 9 醚化程度: 试验方法A-酸洗 10 – 17 试验方法B-非水滴定 10 , 12 , 18 – 23 粘度 24 – 29 纯洁 30 – 37 乙醇酸钠 38 – 46 氯化钠 47 – 54 密集 55 – 61 1.3 以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 1.4 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践，并确定监管限制的适用性。 有关具体危险说明，请参见 15.1 和 20 . 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《国际标准、指南和建议制定原则决定》中确立的国际公认标准化原则制定的。 =====意义和用途====== 5.1 水分分析（连同纯度）用于计算材料中活性聚合物的量，在确定各种配方中使用的羧甲基纤维素钠的量时必须考虑。

1.1 These test methods cover the testing of sodium carboxymethylcellulose. 1.2 The test procedures appear in the following order: Sections Moisture 4 – 9 Degree of Etherification: Test Method A—Acid Wash 10 – 17 Test Method B—Nonaqueous Titration 10 , 12 , 18 – 23 Viscosity 24 – 29 Purity 30 – 37 Sodium Glycolate 38 – 46 Sodium Chloride 47 – 54 Density 55 – 61 1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see 15.1 and 20 . 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 Moisture analysis (along with purity) is used to calculate the amount of active polymer in the material and must be considered when determining the amount of sodium carboxymethylcellulose to use in various formulations.