1.1 这些试验方法包括高钙和白云质石灰石、生石灰和熟石灰的化学分析。这些测试方法分为标准（首选）或替代（可选）。 1.2 标准试验方法是采用经典重量或体积分析程序的方法，通常是裁判分析所需的方法，其中化学规范要求是买卖双方合同协议的重要组成部分。 1.3 为那些希望使用比常规测定某些成分的标准方法更短或更方便的程序的人提供了替代或可选的试验方法。可选的测试方法有时可能比标准测试方法更可取，但通常会使用现代且昂贵的仪器，这可能不是每个人都能使用的。因此，这些测试方法的使用必须由每个实验室自行决定。 1.4 分析程序按以下顺序显示: 部分 氧化铝 15 可用石灰指数 28 氧化钙和氧化镁: EDTA替代滴定法 31 碳酸钙当量 33 氧化钙: 重量分析法 16 体积法 17 二氧化碳标准方法 22 铁和铝的复合氧化物 12 亚铁 附录X5 游离氧化钙 附录X6 熟石灰中的游离水分 21 石灰石中的游离水分 20 游离二氧化硅 29 不溶性物质，包括二氧化硅: 标准方法 8. 可选高氯酸法 9 二氧化硅以外的不溶性物质 11 点火损失 19 氧化镁 18 锰: 铋酸盐法 附录X4 高碘酸盐（光度法） 27 碱土溶液pH值的测定 34 磷 滴定法 附录X3 Molybdovanadate法 26 二氧化硅 10 氧化锶 附录X2 三氧化硫 23 总碳: 直接燃烧导热电池 方法 32 总碳和硫: 燃烧/红外探测方法 35 铁总量: 标准方法，重铬酸钾 滴定 13 高锰酸钾滴定法 附录X1 邻菲罗啉光度法 14 总硫含量: 碳酸钠熔融 24 燃烧碘酸盐滴定法 25 未水合氧化物 30 1.5 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。 有关具体的预防说明，请参阅 9.3 , 10.2.1 , 18.4.3 , 31.6.4.2 , X2.3.1 和 X5.4.1.1 . 1.6 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 这些试验方法为测定石灰石、生石灰和熟石灰的化学成分提供了准确可靠的分析程序（见 注1 ). 根据材料的用途或最终用途，决定材料质量或适用性的特定成分的百分比具有重要意义。所获得的结果可用于规范要求。 4.2 由于生石灰和熟石灰能快速吸收空气中的水和二氧化碳，因此精度和偏差在很大程度上取决于样品制备和分析过程中采取的预防措施，以尽量减少过度暴露在环境条件下。 注1: 如果规定对已知干扰进行补偿，则这些试验方法可应用于其他钙质材料。

1.1 These test methods cover the chemical analysis of high-calcium and dolomitic limestone, quicklime, and hydrated lime. These test methods are classified as either standard (preferred) or alternative (optional). 1.2 The standard test methods are those that employ classical gravimetric or volumetric analytical procedures and are typically those required for referee analyses where chemical specification requirements are an essential part of contractual agreement between buyer and seller. 1.3 Alternative or optional test methods are provided for those who wish to use procedures shorter or more convenient than the standard methods for the routine determinations of certain constituents. Optional test methods may sometimes be preferred to the standard test methods, but frequently the use of modern and expensive instrumentation is indicated which may not be accessible to everyone. Therefore, the use of these test methods must be left to the discretion of each laboratory. 1.4 The analytical procedures appear in the following order: Section Aluminum Oxide 15 Available Lime Index 28 Calcium and Magnesium Oxide: Alternative EDTA Titration Method 31 Calcium Carbonate Equivalent 33 Calcium Oxide: Gravimetric Method 16 Volumetric Method 17 Carbon Dioxide by Standard Method 22 Combined Oxides of Iron and Aluminum 12 Ferrous Iron Appendix X5 Free Calcium Oxide Appendix X6 Free Moisture in Hydrated Lime 21 Free Moisture in Limestone 20 Free Silica 29 Insoluble Matter Including Silicon Dioxide: Standard Method 8 Optional Perchloric Acid Method 9 Insoluble Matter Other Than Silicon Dioxide 11 Loss on Ignition 19 Magnesium Oxide 18 Manganese: Bismuthate Method Appendix X4 Periodate (Photometric) Method 27 pH Determination of Alkaline Earth Solutions 34 Phosphorus: Titrimetric Method Appendix X3 Molybdovanadate Method 26 Silicon Dioxide 10 Strontium Oxide Appendix X2 Sulfur Trioxide 23 Total Carbon: Direct Combustion-Thermal Conductivity Cell Method 32 Total Carbon and Sulfur: Combustion/Infrared Detection Method 35 Total Iron: Standard Method, Potassium Dichromate Titration 13 Potassium Permanganate Titration Method Appendix X1 Ortho-Phenanthroline, Photometric Method 14 Total Sulfur: Sodium Carbonate Fusion 24 Combustion-Iodate Titration Method 25 Unhydrated Oxides 30 1.5 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 precautionary statements, see 9.3 , 10.2.1 , 18.4.3 , 31.6.4.2 , X2.3.1 , and X5.4.1.1 . 1.6 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 These test methods provide accurate and reliable analytical procedures to determine the chemical constituents of limestone, quicklime, and hydrated lime (see Note 1 ). The percentages of specific constituents which determine a material's quality or fitness for use are of significance depending upon the purpose or end use of the material. Results obtained may be used in relation to specification requirements. 4.2 Because quicklime and hydrated lime quickly absorb water and carbon dioxide from the air, precision and bias are extremely dependent upon precautions taken during sample preparation and analysis to minimize excessive exposure to ambient conditions. Note 1: These test methods can be applied to other calcareous materials if provisions are made to compensate for known interferences.