1.1 本规程包括使用trier进行采样。trier类似于细长的勺，如所示 图1 . trier用于收集潮湿或有粘性且粒径小于trier直径一半的颗粒或粉末材料样品。 图1 Triers（典型） 1.2 只有在确定可以提取相对完整的圆柱形样品时，trier才能用作垂直取芯装置。 1.3 单位- 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。所有观察值和计算值应符合实践中确定的有效数字和舍入准则 D6026 . 以国际单位制以外的单位报告试验结果不应视为不符合本标准。 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、健康和环境实践，并确定监管限制的适用性。 1.5 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 本规程适用于土壤和类似细粒粘性材料的取样。本规程适用于采集样本的人员。 5.2 本规程应与指南一起使用 D4687 ，包括采样计划、安全、质量保证、保存、去污、标签和链- 监管程序；实践 D5088 ，包括废物处理场使用的现场设备的去污；和实践 D5283 ，包括环境现场操作的项目规范和实践。

1.1 This practice covers sampling using a trier. A trier resembles an elongated scoop as shown in Fig. 1 . The trier is used to collect samples of granular or powdered materials that are moist or sticky and have a particle diameter less than one half the diameter of the trier. FIG. 1 Triers (Typical) 1.2 The trier can be used as a vertical coring device only when it is certain that a relatively complete and cylindrical sample can be extracted. 1.3 Units— The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026 . Reporting of test results in units other than SI shall not be regarded as nonconformance with this standard. 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. 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 ====== 5.1 This practice is applicable to sampling soils and similar fine-grained cohesive materials. This practice is to be used by personnel who are to acquire the samples. 5.2 This practice should be used in conjunction with Guide D4687 , which covers sampling plans, safety, quality assurance, preservation, decontamination, labeling, and chain-of-custody procedures; Practice D5088 , which covers the decontamination of field equipment used at waste sites; and Practice D5283 , which covers project specifications and practices for environmental field operations.