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Standard Classification of Peat Samples by Laboratory Testing 实验室试验对泥炭样品的标准分类
发布日期: 2023-04-01
1.1 这种分类是一种通过实验室测试对泥炭样品进行细分和命名的系统。 1.2 泥炭被认为是一种天然存在的有机土壤,主要来源于在水饱和、厌氧环境中长期积累的分解植物材料。它分布在泥炭地、沼泽、红树林、沼泽、沼泽和麝香地,通常由苔藓、草、叶子、莎草和灌木组成。沉积环境的变化可以在无机土壤下形成地下泥炭沉积物。通常,泥炭密度低,含水量高,与其他类型的土壤相比,泥炭具有很强的可压缩性 1.3 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。 1.4 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====== 4.1 这种分类的目的是规范泥炭材料的命名,以便泥炭生产商能够更好地识别产品,泥炭消费者能够更好地选择符合要求的泥炭材料。该系统也可用于泥炭资源评估、环境影响报告和初步工程研究。选择用于该分类的参数是已确定的与泥炭的农业/园艺、岩土工程和能源使用有关的参数。 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 通常被认为能够进行合格且客观的测试。本标准的使用者应注意遵守实践 第3740页 这本身并不能保证可靠的结果。可靠的结果取决于许多因素;实践 第3740页 提供了一种评估其中一些因素的方法。
1.1 This classification is a system for subdividing and assigning nomenclature to peat samples through laboratory tests. 1.2 Peat is considered to be a naturally occurring organic soil primarily derived from decomposing plant material that has sedentarily accumulated in water-saturated, anaerobic environments. It is found in peatlands, bogs, mangroves, mires, moors, and muskegs and is generally composed of mosses, grasses, leaves, sedges, and shrubs. Changes in depositional environment can create subsurface peat deposits underlying inorganic soils. Typically, peat has a low density, high water content, and is quite compressible when compared to other types of soil 1.3 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. 1.4 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 ====== 4.1 The purpose of this classification is to standardize the naming of peat materials so that the peat-producer can better identify the product and the peat-consumer can better select peat materials to meet requirements. This system may also be used for peat resource evaluations, environmental impact reports, and preliminary engineering studies. The parameters selected for use in this classification are ones which have been determined to relate to the agricultural/horticultural, geotechnical, and energy uses of peats. 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. Users of this standard are cautioned that compliance with Practice D3740 does not in itself assure reliable results. Reliable results depend on many factors; Practice D3740 provides a means of evaluating some of those factors.
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归口单位: D18.07
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