固体回收燃料.用烘干法测定水分含量.第3部分：一般分析样品中的水分

[中文适用范围]： 本文件规定了通过在烘箱中干燥样品来测定一般分析样品中水分的方法。 该方法适用于符合 CEN/TS 15414-1[3]1) 的一般分析样品。 它适用于所有固体回收燃料。 如果固体回收燃料含有大量的油馏分，则采用卡尔费休法（例如达到恒定质量之前的干燥时间）。 注：当与回收材料一起使用时，术语水分含量可能会产生误导，因为固体回收材料（例如生物质） ，通常含有不同量的挥发性化合物（提取物），当通过烘箱干燥测定一般分析样品的水分含量时，这些化合物会蒸发。 [外文原描述]： This document specifies a method for the determination of moisture in a general analysis sample by drying the sample in an oven. This method is suitable for use for general analysis samples in accordance with CEN/TS 15414‑1 [3] [1] . It is applicable to all solid recovered fuels. If solid recovered fuels contain large amounts of oil-fractions the Karl-Fischer-Method (for example ISO 760) is advisable. Otherwise, a lower temperature is recommended (e.g. 50 °C ± 10 °C) and a longer drying time until constant mass is achieved. NOTE The term moisture content, when used with recovered materials, can be misleading since solid recovered materials, e. g. biomass, frequently contain varying amounts of volatile compounds (extractives) which can evaporate when determining the moisture content of the general analyses sample by oven drying. [1] The adoption of the standard series EN 15414 as standard series ISO 21660 is planned. ISO 21660‑3 is published in parallel at CEN level as EN 21660-3.