1.1 本试验方法提供了在低样品表面积-浸出剂体积比（S/V）条件下，在温度<100°C的试验溶液中，测量模拟或放射性整体废物体（如玻璃、陶瓷、水泥（灌浆）或金属陶瓷）的化学耐久性。 1.2 本试验方法可用于根据对试验溶液的分析，在特定试验条件下，表征各种模拟或放射性废物体在各种浸出剂中的溶解或浸出行为。本试验的数据用于计算暴露于温度<100°C的水溶液中的试样的归一化元素质量损失值。 1.3 试验在恒定溶液体积和恒定温度的静态条件下进行。 试样的反应性由试验期间溶液中释放和累积的成分量确定。可以使用多种测试条件来研究材料行为，包括各种浸出剂成分、试样表面积与浸出剂体积比、温度和测试持续时间。 1.4 建议使用三种浸出剂成分和四种测试条件的参考测试矩阵来表征材料行为，并便于实验室间比较测试结果。 1.5 在本试验过程中，试样表面可能会发生变化。虽然不是试验方法的一部分，但建议检查这些改变的表面区域，以表征静态暴露于溶液中时由于废物反应而产生的化学和物理变化。 1.6 本试验方法不推荐用于评估金属材料，金属材料的降解包括不受本试验方法控制的氧化反应。 1.7 该测试方法必须根据数据验收的所有适用质量保证要求进行。 1.8 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.9 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、健康和环境实践，并确定监管限制的适用性。 有关具体的危险声明，请参阅 7.3.2 . 1.10 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《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 本试验方法可用于测量材料在稀释溶液中的反应性，其中试验响应主要由试样的溶解或浸出决定。它可用于比较候选放射性废物体的溶解或浸出行为，并研究静态暴露于稀溶液期间的反应，在稀溶液中，溶液反馈效应可以忽略不计，具体取决于试验条件。 5.2 该试验适用于天然矿物、模拟废物体材料和放射性废物体材料样本。 5.3 如实践中所述，该测试的数据可能构成废物形态行为长期预测逻辑方法所需的更大数据体的一部分 C1174 . 特别是，测量的溶液浓度和蚀变表面的特征可用于验证地球化学建模代码。 5.4 本试验方法不包括使用压碎或粉末试样和有机材料。 5.5 规定了几个参考试验参数值和参考浸出剂溶液，以便于比较不同材料和不同实验室的试验结果。 然而，其他测试参数值和浸出液成分可用于表征试样的反应性。 5.5.1 可以使用不同的浸出剂成分进行测试，以模拟地下水，在样本溶解时缓冲浸出液pH值，或测量特定溶质的常见离子效应。 5.5.2 可以进行测试，以测量各种测试参数值对试样响应的影响，包括时间、温度和S/V比。在不同持续时间和不同温度下进行的测试提供了对反应动力学的深入了解。在不同S/V比下进行的测试可以深入了解化学亲和力（溶液反馈效应）和饱和方法。 5.6 本试验方法中可使用充气或除氧溶液，但测试高放射性样本时除外。 在使用高放射性样本进行的试验中，必须使用除氧溶液，以尽量减少氮辐解的影响。脱气浸出剂的制备在 7.2.2 . 5.7 氧逸度的控制不是本试验方法的一部分。这种控制和测量可能需要用于测试数据的特定用途，但不在本测试方法的范围内。 5.8 可以使用与试样、浸出剂和测试环境兼容的容器进行测试。耐腐蚀材料应用于腐蚀性盐水的试验。在累积吸收剂量超过10%的辐射场中，应使用抗辐射材料进行试验 4. rad（参见 注1 ). 注1: 如程序所示，当使用高放射性废物体样本时，试验方法的附加要求适用。

1.1 This test method provides a measure of the chemical durability of a simulated or radioactive monolithic waste form, such as a glass, ceramic, cement (grout), or cermet, in a test solution at temperatures <100°C under low specimen surface- area-to-leachant volume (S/V) ratio conditions. 1.2 This test method can be used to characterize the dissolution or leaching behaviors of various simulated or radioactive waste forms in various leachants under the specific conditions of the test based on analysis of the test solution. Data from this test are used to calculate normalized elemental mass loss values from specimens exposed to aqueous solutions at temperatures <100°C. 1.3 The test is conducted under static conditions in a constant solution volume and at a constant temperature. The reactivity of the test specimen is determined from the amounts of components released and accumulated in the solution over the test duration. A wide range of test conditions can be used to study material behavior, including various leachant composition, specimen surface area-to-leachant volume ratios, temperatures, and test durations. 1.4 Three leachant compositions and four reference test matrices of test conditions are recommended to characterize materials behavior and facilitate interlaboratory comparisons of tests results. 1.5 Specimen surfaces may become altered during this test. Although not part of the test method, it is recommended that these altered surface regions be examined to characterize chemical and physical changes due to the reaction of waste forms during static exposure to solutions. 1.6 This test method is not recommended for evaluating metallic materials, the degradation of which includes oxidation reactions that are not controlled by this test method. 1.7 This test method must be performed in accordance with all applicable quality assurance requirements for acceptance of the data. 1.8 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.9 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 a specific hazard statement, see 7.3.2 . 1.10 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 This test method can be used to provide a measure of the reactivity of a material in a dilute solution in which the test response is dominated by the dissolution or leaching of the test specimen. It can be used to compare the dissolution or leaching behaviors of candidate radioactive waste forms and to study the reactions during static exposure to dilute solutions in which solution feed-back effects can be maintained negligible, depending on the test conditions. 5.2 The test is suitable for application to natural minerals, simulated waste form materials, and radioactive waste form material specimens. 5.3 Data from this test may form part of the larger body of data that is necessary in the logical approach to long-term prediction of waste form behavior, as described in Practice C1174 . In particular, measured solution concentrations and characterizations of altered surfaces may be used in the validation of geochemical modeling codes. 5.4 This test method excludes the use of crushed or powdered specimens and organic materials. 5.5 Several reference test parameter values and reference leachant solutions are specified to facilitate the comparison of results of tests conducted with different materials and at different laboratories. However, other test parameter values and leachant solution compositions can be used to characterize the specimen reactivity. 5.5.1 Tests can be conducted with different leachant compositions to simulate groundwaters, buffer the leachate pH as the specimen dissolves, or measure the common ion effect of particular solutes. 5.5.2 Tests can be conducted to measure the effects of various test parameter values on the specimen response, including time, temperature, and S/V ratio. Tests conducted for different durations and at various temperatures provide insight into the reaction kinetics. Tests conducted at different S/V ratio provide insight into chemical affinity (solution feed-back effects) and the approach to saturation. 5.6 Either aerated or deaerated solutions may be used in this test method except when testing highly radioactive specimens. Deaerated solutions are mandatory in tests conducted with highly radioactive specimens to minimize the effects of nitrogen radiolysis. Preparation of deaerated leachants is addressed in 7.2.2 . 5.7 Control of the oxygen fugacity is not part of this test method. Such control and measurement may be required for specific uses of test data but are beyond the scope of this test method. 5.8 Tests can be conducted using vessels compatible with the test specimen, leachant, and test environment. Corrosion resistant materials shall be used for tests with corrosive brines. Radiation-resistant materials shall be used for tests in radiation fields wherein the accumulated absorbed dose will exceed 10 4 rad (see Note 1 ). Note 1: Additional requirements to the test method apply when using a highly radioactive waste form specimen, as indicated in the procedure.