SIST EN ISO 18847:2024 PDF

Solid biofuels - Determination of particle density of pellets and briquettes (ISO 18847:2024)

Title (English):

SIST EN ISO 18847:2024

Solid biofuels - Determination of particle density of pellets and briquettes (ISO 18847:2024)

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 22
Publication date:: May 20, 2024
ICS:: 17.060
Technical committee:: AGO - Refuse derived fuel

Document language:

enru

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Description (English):

This document specifies a method for determining the particle density of compressed fuels such as pellets or briquettes. Particle density is not an absolute value and conditions for its determination have to be standardized to enable comparative determinations to be made.

Technical details

SKU: SIST EN ISO 18847:2024

Abstract

Overview

EN ISO 18847:2024 - "Solid biofuels - Determination of particle density of pellets and briquettes" (CEN adoption of ISO 18847:2024) defines a standardized laboratory method to determine the particle density of compressed biofuels (pellets and briquettes). The standard specifies the measurement principle, required reagents and apparatus, sample preparation, procedures for pellets and briquettes, calculation, performance criteria and reporting. It replaces EN ISO 18847:2016 and adds more detailed method specifications plus an informative liquid-displacement Annex.

Key topics and technical requirements

Scope and principle
- Particle density is measured by determining both mass and volume; volume is derived from buoyancy in a liquid (apparent weight loss between air and liquid).
- Particle density is not an absolute constant - measurement conditions are standardized so comparative results are meaningful.
Primary methods
- Buoyancy method (reference method) for both pellets and briquettes; readings are time‑synchronized (e.g., a fixed reading time is used to improve reproducibility).
- Stereometric estimation for larger particles (briquettes) - described in informative Annex A.
- Liquid displacement estimation for pellets - described in informative Annex B as a simplified on-site approach.
Reagents and apparatus
- Water with conductivity

Related standards

Mentioned in the description and other SIST standards

Overview

Key topics and technical requirements

Scope and principle
- Particle density is measured by determining both mass and volume; volume is derived from buoyancy in a liquid (apparent weight loss between air and liquid).
- Particle density is not an absolute constant - measurement conditions are standardized so comparative results are meaningful.
Primary methods
- Buoyancy method (reference method) for both pellets and briquettes; readings are time‑synchronized (e.g., a fixed reading time is used to improve reproducibility).
- Stereometric estimation for larger particles (briquettes) - described in informative Annex A.
- Liquid displacement estimation for pellets - described in informative Annex B as a simplified on-site approach.
Reagents and apparatus
- Water with conductivity

SIST EN ISO 18847:2024 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

Related standards

Abstract

Overview

Key topics and technical requirements

Related standards

Solid biofuels — Determination of particle density of pellets and briquettes

Solid biofuels — Determination of particle density of pellets and briquettes

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