1.1 本试验方法提供了水硬性水泥砂浆或混凝土在试验条件下水溶性氯化物的取样和分析程序。 1.2 本标准的文本引用了提供解释信息的注释和脚注。这些注释和脚注不应视为本标准的要求。 1.3 以国际单位制或英寸-磅单位表示的数值应单独视为一个标准。在文本中，英寸-磅单位显示在括号中。每个系统中规定的值不是精确的等价物；因此，每个系统应相互独立使用。 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）。 本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 ====意义和用途====== 3.1 当水溶性氯化物以足够的量存在时，能够导致嵌入或接触水泥系统（如砂浆、水泥浆或混凝土）的金属（如钢）的腐蚀开始或加速。因此，需要对其进行测定，以评估水泥系统发生此类反应的可能性，或调查已经发生此类反应的水泥系统。然而，必须认识到，在水泥系统寿命中的某个特定时间测定的水溶性氯化物能够与另一时间测定的水溶性氯化物有很大不同； 例如，服务环境能够由于溶解度的变化而导致较高的水溶性氯化物含量，或者由于浸出而导致较低的水溶性氯化物含量。 3.1.1 试验条件能够影响水溶性氯化物的测定。当将本试验方法的结果与其他试验方法的结果进行比较时，请小心。 3.2 已知硫化物会干扰氯化物含量的测定。高炉矿渣骨料和水泥中含有硫化物硫，其浓度能够产生此类干扰，并产生错误的高测试结果。试验方法中讨论的过氧化氢处理 C114 ，用于消除此类干扰。 3.3 有些骨料含有氯化物，不能用于腐蚀。 使用本试验方法检测此类氯化物。 3.

1.1 This test method provides procedures for the sampling and analysis of hydraulic-cement mortar or concrete for chloride that is water soluble under the conditions of test. 1.2 The text of this standard references notes and footnotes that provide explanatory information. These notes and footnotes shall not be considered as requirements of this standard. 1.3 The values stated in either SI units or inch-pound units are to be regarded separately as a standard. Within the text, the inch-pound units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. 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 and health practices and determine the applicability of regulatory limitations prior to use. ====== Significance And Use ====== 3.1 Water-soluble chloride, when present in sufficient amount, is capable of leading to initiation or acceleration of the corrosion of metals, such as steel, embedded in or contacting a cement system such as mortar, grout, or concrete. Thus, its determination shall be required to evaluate the potential of a cement system for undergoing such reactions or to investigate cement systems where such reaction has already occurred. However, it must be recognized that water-soluble chloride determined at some particular time in the life of a cement system is capable of being substantially different than that at another time; for example, the service environment is capable of resulting in a higher water-soluble chloride content due to changes in solubility or a lower one due to leaching. 3.1.1 Test conditions are capable of affecting water-soluble chloride determinations. Take caution when comparing results from this test method with those from other test methods. 3.2 Sulfides are known to interfere with the determination of chloride content. Blast-furnace slag aggregates and cements contain sulfide sulfur in concentrations that are capable of such interference and produce erroneously high test results. Treatment with hydrogen peroxide, as discussed in Test Methods C114 , is used to eliminate such interference. 3.3 There are aggregates that contain chloride that is not available for corrosion. Such chloride will be detected by use of this test method. 3