ISO 18134-1:2022
Solid biofuels — Determination of moisture content — Part 1: Reference method
Solid biofuels — Determination of moisture content — Part 1: Reference method
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 5
- Дата публикации:
- 30 августа 2022 г.
- Издание:
- ISO IS 18134 edition 2 version 1
- ICS:
- 27.190
This document describes the method of determining the moisture content of a test sample of solid biofuels by drying in an oven and can be used when high precision of the determination of moisture content is necessary. 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
ISO 18134-1:2022 - "Solid biofuels - Determination of moisture content - Part 1: Reference method" specifies a high-precision oven-drying reference method for determining the moisture content of solid biofuels. The standard covers test sample handling, drying conditions, weighing procedures (including buoyancy correction), calculations and reporting. Results are always reported on a wet basis (as received, percentage of total mass). Emissions of volatile organic compounds (VOC) during oven drying are acknowledged but considered negligible for this method.
Key topics and technical requirements
- Drying principle: Dry test portion in air at 105 ± 2 °C until constant mass is achieved.
- Constant mass definition: Mass change not exceeding 0.2% absolute of the initial test portion during a 60-minute heating period.
- Apparatus:
- Drying oven with uniform temperature and 3–5 air changes per hour; air flow must not dislodge particles.
- Non-corrodible, heat‑resistant trays with clean even surfaces.
- Balance readable to 0.1 g.
- Sample preparation:
Технические детали
- Технический комитет
- ISO/TC 238 - Solid biofuels
- SKU
- ISO 18134-1:2022
Похожие стандарты
Стандарты, упомянутые в описании