1.1 本试验方法包括未压缩（松散）和压缩（打包）泥炭以及泥炭基生长介质的体积测量，并用作质量控制测量，以确定包装中是否含有标记量的材料。该测试方法的结果在很大程度上取决于运行该程序的人员的经验。 1.2 本标准仅适用于泥炭和泥炭基生长介质。虽然其他类型的生长介质可以使用此标准，但这超出了范围，可能需要更改方法以适应不同的生长介质。 1.3 以英寸磅为单位的数值应视为标准。括号中给出的值是国际单位制的数学转换，仅供参考，不被视为标准。 除此之外，筛网名称通常使用符合实践的“替代”系统进行识别 第11页 ，例如3英寸和200号，而不是分别为75毫米和75µm的“标准”。 1.4 所有观测值和计算值应符合实践中制定的有效数字和四舍五入指南 D6026型 。 1.4.1 本标准中用于规定如何收集/记录或计算数据的程序被视为行业标准。此外，它们代表了通常应保留的有效数字。所使用的程序不考虑材料变化、获取数据的目的、特殊目的研究或用户目标的任何考虑；并且通常的做法是增加或减少报告数据的有效数字以与这些考虑相称。 考虑工程设计分析方法中使用的有效数字超出了本标准的范围。 1.5 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。 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====== 5.1 该测试方法用于量化商业交易中考虑的泥炭和泥炭基生长介质的体积，以确定包装是否包含标记数量。因此，材料以“已售出”的状态进入测试区域。 5.2 业余园丁和专业种植者大量使用泥炭和泥炭种植基质。未按照书面规定遵守本标准程序可能导致结果不准确。 注1: 本标准产生的结果的质量取决于执行该标准的人员的能力以及所用设备和设施的适用性。符合实践标准的机构 第3740页 通常被认为能够胜任和客观的测试/取样/检查等。 本标准的使用者应注意遵守实践 第3740页 其本身不能确保可靠的结果。可靠的结果取决于许多因素；实践 第3740页 提供了评估其中一些因素的方法。

1.1 This test method covers the measurement of the volume of uncompressed (loose) and compressed (baled) peat and peat-based growing media and is used as a quality control measurement to determine if the package contains the labeled amount of material. The results of this test method is highly dependent on the experience of the personnel running the procedure. 1.2 This standard is for peat and peat-based growing media only. While it is possible for other types of growing media to use this standard it is outside the scope and the methodology may have to be altered to accommodate a different growing media. 1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. Except, that the sieve designations are typically identified using the “alternative” system in accordance with Practice E11 , such as 3 in. and No. 200, instead of the “standard” of 75 mm and 75 µm, respectively. 1.4 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026 . 1.4.1 The procedures used to specify how data are collected/recorded or calculated in this standard are regarded as the industry standard. In addition, they are representative of the significant digits that generally should be retained. The procedures used do not consider material variation, purpose for obtaining the data, special purpose studies, or any considerations for the user’s objectives; and it is common practice to increase or reduce significant digits of reported data to be commensurate with these considerations. It is beyond the scope of this standard to consider significant digits used in analysis methods for engineering design. 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. 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 ====== 5.1 This test method is used to quantify the volume of peat and peat-based growing media under consideration in commercial transactions to determine if the package contains the labeled quantity. As such, material comes into the test area in an “as sold” condition. 5.2 Peat and peat-based growing media are used by amateur gardeners and professional growers on a volume basis. Failure to follow this standard procedure as written can lead to inaccurate results. Note 1: The quality of the result produced by this standard is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used. Agencies that meet the criteria of Practice D3740 are generally considered capable of competent and objective testing/sampling/inspection/etc. Users of this standard are cautioned that compliance with Practice D3740 does not in itself ensure reliable results. Reliable results depend on many factors; Practice D3740 provides a means of evaluating some of those factors.