Standards Development

Scope

This document specifies a method for the determination of the moisture content in a test portion of the laboratory sample by drying the test portion in an oven. This method can be used for routine production control on site, e.g. if a high precision of the determination of moisture content is not required. It is applicable to all solid recovered fuels.

If solid recovered fuels contain large amounts of oil-fractions a lower temperature is recommended (e. g. 50 °C ± 10°C) and a longer drying time until constant mass is achieved. As an alternative the Karl-Fischer-Titration-Method according to ISO 760 is advisable.

NOTE 1 The total moisture content of recovered fuels is not an absolute value and therefore standardised conditions for its determination are indispensable to enable comparative determinations.

NOTE 2 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.

NOTE 3 This draft document is based on CEN/TS 15414‑2.