SIST EN ISO 18134-2:2024
Solid biofuels - Determination of moisture content - Part 2: Simplified method (ISO 18134-2:2024)
Solid biofuels - Determination of moisture content - Part 2: Simplified method (ISO 18134-2:2024)
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 12
- Дата публикации:
- 6 мая 2024 г.
- ICS:
- 27.190
- Технический комитет:
- AGO - Refuse derived fuel
This document specifies a method of determining the moisture content of a test sample of solid biofuels by drying in an oven and is used when the highest precision is not needed, e.g. for routine production control on site. 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). 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.
Abstract
Overview
EN ISO 18134-2:2024 - Solid biofuels - Determination of moisture content - Part 2: Simplified method (ISO 18134‑2:2024) specifies a pragmatic oven-drying procedure for routine determination of moisture in all types of solid biofuels. Intended for on‑site production control where the highest laboratory precision is not required, the method reports moisture on a wet basis (as received) and disregards small volatile organic compound (VOC) losses as negligible.
Key topics and requirements
- Principle: Dry a test portion in air at (105 ± 2) °C until constant mass; calculate moisture from mass loss.
- Simplified approach: Buoyancy corrections are neglected and only a single determination is required (difference from ISO 18134‑1).
- Constant mass criterion: Change not exceeding 0.2 % absolute between successive weighings.
- Apparatus: Ventilated drying oven with uniform temperature; non‑corrodible heat‑resistant trays; balance readable to 0.1 g.
- Sample preparation: Follow ISO 18135 / ISO 21945 for sampling and ISO 14780 for sample reduction. Prepare particles so at least one dimension is
Технические детали
- SKU
- SIST EN ISO 18134-2:2024
Похожие стандарты
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