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ISO 18134-3:2023

Solid biofuels — Determination of moisture content — Part 3: Moisture in general analysis sample

Edition date: 2023-06-12
In Force
Available languages: French, English
Summary:

This document describes the method of determining the moisture content in the general analysis sample by drying in an oven. The method described in this document is applicable to all solid biofuels. The moisture content of solid biofuels (as received) is always reported based on the total mass of the test sample (wet basis).

Since biofuels in small particle size are very hygroscopic, their moisture content will change with humidity in the atmosphere and, therefore, the moisture of the general analysis sample is determined simultaneously with the determination of other properties being measured (e.g. calorific value, volatile matter, metals, etc.).

NOTE       Biomass materials can contain small amounts of volatile organic compounds (VOC) which can evaporate when determining moisture content by oven drying (see References [1] and [2]). The release of such compounds is quite small relative to the overall moisture content as determined by this method and is disregarded in this document.



Le présent document décrit la méthode de dosage de la teneur en humidité de l'échantillon pour analyse par séchage à l'étuve. La méthode décrite dans le présent document est applicable à l’ensemble des biocombustibles solides. La teneur en humidité des biocombustibles solides (à réception) est toujours rapportée à la masse totale de l'échantillon pour essai (base humide).

Les biocombustibles constitués de particules de petite taille étant très hygroscopiques, leur teneur en humidité varie en fonction de l'humidité de l'atmosphère et, par conséquent, l'humidité de l’échantillon pour analyse générale est établie simultanément avec la détermination d’autres propriétés mesurées (par exemple, le pouvoir calorifique, la matière volatile, les métaux, etc.).

NOTE            Les matériaux de la biomasse peuvent contenir de petites quantités de composés organiques volatils (COV) qui peuvent s'évaporer lors du dosage de la teneur en humidité par séchage à l’étuve (voir Références[1] et[2]). La libération de ces composés est très faible par rapport à la teneur en humidité globale telle que déterminée par cette méthode et n'est pas prise en compte dans le présent document.
ICS: 75.160.40-Biofuels, 27.190-Biological sources and alternative sources of energy
CTN: ISO/TC 238 - 554401

Standards Cancellations

Anula a ISO 18134-3:2015

International Equivalence

Identic UNE-EN ISO 18134-3:2024

Normas Conjuntas

Trabajo conjunto ISO 24638:2021

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