ISO 21404:2020 PDF

Solid biofuels — Determination of ash melting behaviour

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Title (English):

ISO 21404:2020

Solid biofuels — Determination of ash melting behaviour

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 13
Publication date:: January 23, 2020
Edition:: ISO IS 21404 edition 1 version 1
ICS:: 27.190

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Description (English):

This document specifies a method for the determination of the characteristic temperatures for the ash melting behaviour of solid biofuels.

Technical details

Technical committee: ISO/TC 238 - Solid biofuels
SKU: ISO 21404:2020

Abstract

Overview

ISO 21404:2020 - "Solid biofuels - Determination of ash melting behaviour" specifies an empirical laboratory method to determine characteristic temperatures that describe the ash melting (fusibility/softening) behaviour of solid biofuels. The method uses ash prepared under controlled ashing conditions, a standardized test piece, controlled heating and atmosphere, and continuous observation to record temperatures at which defined shape changes occur. Results are used to compare tendencies of different biofuel ashes to form deposits or cause bed agglomeration in combustion systems.

Key topics and technical requirements

Scope: Determination of characteristic ash melting temperatures for solid biofuels (ash melting behaviour / ash fusibility).
Ash preparation: Ashing is normally done at (550 ± 10) °C; alternative ashing at 710 °C or 815 °C may be used where specified.
Characteristic temperatures defined:
- SST - Shrinkage Starting Temperature (area

Related standards

Other ISO standards

Overview

Key topics and technical requirements

Scope: Determination of characteristic ash melting temperatures for solid biofuels (ash melting behaviour / ash fusibility).
Ash preparation: Ashing is normally done at (550 ± 10) °C; alternative ashing at 710 °C or 815 °C may be used where specified.
Characteristic temperatures defined:
- SST - Shrinkage Starting Temperature (area

ISO 21404:2020 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

Related standards

Abstract

Overview

Key topics and technical requirements

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