1.1本试验方法用于测定土壤中的水溶性硫酸盐。 1.2本试验方法适用于土壤中水溶性硫酸盐浓度在0.02%至3.33%（按质量计）之间的土壤。 1.3本试验方法不测定除硫酸盐外的任何形式的硫。 1.4一些管理机构管理土壤从一个区域到另一个区域的移动。取样器和实验室应遵守所有规定。 1.5以国际单位制表示的数值应视为标准。 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====== 该试验方法可用于确定土壤是否会对水硬性水泥混凝土产生不利反应。

1.1 This test method is for the determination of water-soluble sulfate in soils. 1.2 This test method was developed for concentrations of water-soluble sulfate in soils between 0.02 and 3.33 % sulfate by mass. 1.3 This test method does not determine sulfur in any form except as sulfate. 1.4 Some governing bodies regulate the movement of soils from one area to another. It is up to the sampler and laboratory to comply with all regulations. 1.5 The values stated in SI units are to be regarded as the standard. 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 to determine the applicability of regulatory limitations prior to use. ====== Significance And Use ====== This test method can be used to determine if soils could have an adverse reaction with hydraulic cement concrete.