固体回收燃料.样品制备

[中文适用范围]： 本文件规定了样品制备方法，以确保在生产一般分析样品的整个制备过程中样品的代表性。 合适的测试部分可以从实验室或一般分析样品中取出，并根据相应分析程序中定义的具体要求进行分析。 本文件规定了正确的样品制备顺序，适用于： a) 复合样品，以生产实验室样品（考虑到大块固体回收燃料）； b) 整个测试计划中的每个二次抽样步骤； c) 实验室样品，以获得合适的测试部分； d) 在物理分析、化学分析或两者（例如提取、消解、分析测定）之前，确保根据样品制备计划获取的测试部分的代表性。 本文件中规定的方法可用于样品制备，例如，当要测试样品的堆积密度、生物质含量测定、机械耐久性、粒度分布、水分含量、灰分含量、灰分熔化行为、热值时、化学成分、杂质及自热性能。 这些方法不适用于测试桥接性能所需的非常大的样品。 [外文原描述]： This document specifies methods for sample preparation to ensure representativeness of the samples throughout the preparation procedures to produce general analysis samples. Suitable test portions can be taken from the laboratory or general analysis samples and used for analysis according to the specific requirements defined in the corresponding analytical procedures. This document specifies the correct sample preparation sequence to be applied to: a) the composite sample, in order to produce a laboratory sample (taking into account large pieces of solid recovered fuel); b) each sub-sampling step throughout the testing programme; c) the laboratory sample, in order to obtain suitable test portions; d) ensure the representativeness of the test portions that have been taken according to the sample preparation plan, prior to physical analysis, chemical analysis or both (e.g. extractions, digestion, analytical determinations). The methods specified in this document can be used for sample preparation, for example, when the samples are to be tested for bulk density, biomass content determination, mechanical durability, particle size distribution, moisture content, ash content, ash melting behaviour, calorific value, chemical composition, impurities and self-heating properties. The methods are not intended to be applied to the very large samples required for the testing of bridging properties.