1.1 本试验方法包括灰分的测定，表示为干氧化（575下氧化）后残余物的质量百分比 °C±25 °C），硬木材和软木材、草本材料（如柳枝稷和蚕桑）、农业残留物（如玉米秸秆、小麦秸秆和蔗渣）、废纸（如办公垃圾、纸板和新闻纸）、酸和碱预处理的生物质以及发酵残留物的固体部分。所有结果都是相对于105 °C烘箱干燥的样品质量。颗粒木燃料的试验方法 E1534 应该使用。 1.2 以国际单位制表示的数值应视为标准。 1.3 本标准并不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 灰分含量是对生物质中矿物含量和其他无机物质的近似测量。 4.2 灰分含量与其他测定法结合使用，以确定生物质样品的总成分。

1.1 This test method covers the determination of ash, expressed as the mass percent of residue remaining after dry oxidation (oxidation at 575 °C ± 25 °C), of hard and soft woods, herbaceous materials (such as switchgrass and sericea), agricultural residues (such as corn stover, wheat straw, and bagasse), wastepaper (such as office waste, boxboard, and newsprint), acid and alkaline pretreated biomass, and the solid fraction of fermentation residues. All results are reported relative to the 105 °C oven-dried mass of the sample. For particulate wood fuels, Test Method E1534 should be used. 1.2 The values stated in SI units are to be regarded as the standard. 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 ash content is an approximate measure of the mineral content and other inorganic matter in biomass. 4.2 The ash content is used in conjunction with other assays to determine the total composition of biomass samples.