1.1 本规程涵盖了化学分析中常用的标准容量溶液和试剂测试溶液的制备、标准化和储存程序。 1.2 本实践中的信息安排如下: 章节 参考文件 2. 术语 3. 意义和用途 4. 仪器 5. 温度效应 6. 测量 7. 试剂 8. 溶液浓度 9 溶液的混合 10 解决方案的存储 11 溶液的制备和标准化 12 精度和偏差 13 氢氧化钠溶液，0.02至1.0meq/mL( N ) 14 到 19 盐酸，0.02至1.0 meq/mL( N ) 20 到 28 硫酸，0.02至1.0 meq/mL( N ) 29 到 33 盐酸，特殊1meq/mL( N ) 34 到 38 硫酸，特殊1meq/mL( N ) 39 到 43 硝酸银溶液，0.1 meq/mL( N ) 44 到 48 硫氰酸铵溶液，0.1 meq/mL( N ) 49 到 53 碘溶液，0.1 meq/mL( N ) 54 到 58 硫代硫酸钠溶液，0.1 meq/mL( N ) 59 到 63 高锰酸钾溶液，0。 1毫克当量/毫升( N ) 64 到 68 重铬酸钾溶液，0.1meq/mL( N ) 69 到 73 甲醇氢氧化钠溶液，0.5meq/mL( N ) 74 到 79 硫酸铈溶液，0.1 meq/mL( N ) 80 到 84 丙酮-高氯酸，0.1 meq/mL( N ) 85 到 89 乙二胺四乙酸二钠溶液，0.05 mol/L( M ) 90 到 94 标准离子溶液 95 非标准试剂溶液和指示剂溶液 96 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 本标准并非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制定适当的安全、健康和环境实践，并确定监管限制的适用性。 本规程中给出了具体的警告说明。关于本规范中使用的所有材料，请参阅现行OSHA法规、供应商的安全数据表和当地法规。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 4.1 许多分析测量的准确性取决于标准溶液的制备和储存方式，以及标准化的准确性。 将推荐用于制备和处理这些溶液的方法结合到一个实践中，消除了在使用这些溶液的所有方法中涵盖这些细节的必要性。

1.1 This practice covers procedures for the preparation, standardization, and storage of the standard volumetric solutions and reagent testing solutions commonly used in chemical analysis. 1.2 The information in this practice is arranged as follows: Sections Referenced Documents 2 Terminology 3 Significance and Use 4 Apparatus 5 Temperature effects 6 Measurements 7 Reagents 8 Concentration of solutions 9 Mixing of solutions 10 Storage of solutions 11 Preparation and standardization of solutions 12 Precision and Bias 13 Sodium hydroxide solution, 0.02 to 1.0 meq/mL ( N ) 14 to 19 Hydrochloric acid, 0.02 to 1.0 meq/mL ( N ) 20 to 28 Sulfuric acid, 0.02 to 1.0 meq/mL ( N ) 29 to 33 Hydrochloric acid, special 1 meq/mL ( N ) 34 to 38 Sulfuric acid, special 1 meq/mL ( N ) 39 to 43 Silver nitrate solution, 0.1 meq/mL ( N ) 44 to 48 Ammonium thiocyanate solution, 0.1 meq/mL ( N ) 49 to 53 Iodine solution, 0.1 meq/mL ( N ) 54 to 58 Sodium thiosulfate solution, 0.1 meq/mL ( N ) 59 to 63 Potassium permanganate solution, 0.1 meq/mL ( N ) 64 to 68 Potassium dichromate solution, 0.1 meq/mL( N ) 69 to 73 Methanolic sodium hydroxide solution, 0.5 meq/mL ( N ) 74 to 79 Ceric sulfate solution, 0.1 meq/mL ( N ) 80 to 84 Acetous perchloric acid, 0.1 meq/mL ( N ) 85 to 89 Disodium ethylenediaminetetraacetate solution, 0.05 mol/L( M ) 90 to 94 Standard ion solutions 95 Nonstandardized reagent solutions and indicator solutions 96 1.3 The values stated in SI units are to be regarded as 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. Specific warning statements are given throughout this practice. Consult current OSHA regulations, suppliers’ Safety Data Sheets, and local regulations for all materials used in this specification. 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 ====== 4.1 The accuracy of many analytical measurements is dependent upon the manner in which the standard solutions are prepared and stored, and the accuracy with which they are standardized. Combining the methods recommended for the preparation and handling of such solutions into one practice eliminates the necessity for covering such details in all of the methods wherein the solutions are used.