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。本方法适用于符合CEN/TS 15414-1的一般分析样品。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，建议使用卡尔·费希尔法（例如ISO 760）。否则，建议降低温度（例如50℃±10℃），延长干燥时间，直到达到恒定质量。 注:当与回收材料一起使用时，术语含水量可能会产生误导，因为固体回收材料，例如生物质，经常含有不同数量的挥发性化合物（提取物），在通过烘箱干燥确定一般分析样品的含水量时，这些化合物可能会蒸发。 [1] 计划采用标准系列EN 15414作为标准系列ISO 21660。ISO 21660-3作为EN 21660-3在欧洲标准化委员会（CEN）级别并行发布。

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.