ISO/TS 4667:2022 PDF

Coal — Determination of the thermal stability and thermal fragmentation

Название (английский):

ISO/TS 4667:2022

Coal — Determination of the thermal stability and thermal fragmentation

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 7
Дата публикации:: 12 августа 2022 г.
Издание:: ISO TS 4667 edition 1 version 1
ICS:: 73.040

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Описание (английский):

This document specifies methods for the determination of thermal stability and thermal fragmentation of coal. It is applicable to brown coal and lignites, anthracites and bituminous coal with a caking index of zero (determined by ISO 15585).

Технические детали

Технический комитет: ISO/TC 27/SC 5 - Methods of analysis
SKU: ISO/TS 4667:2022

Abstract

Overview

ISO/TS 4667:2022 specifies laboratory methods for determining the thermal stability (TS) and thermal fragmentation (TF) of coal. Applicable to brown coal and lignites, anthracites, and bituminous coal with a caking index of zero (per ISO 15585), the technical specification describes sample preparation, furnace conditions, sieving, calculation of indices and reporting. The methods are intended to support coal gasification and high‑temperature combustion decisions by quantifying how coal behaves under pyrolysis-like conditions.

Key topics and requirements

Scope and applicability: Brown coal, lignite, anthracite, and non‑caking bituminous coal (caking index = 0).
Test principle: Heat 6–13 mm coal samples out of contact with air at (850 ± 15) °C for 30 min, cool, sieve residues and calculate TS and TF.
Thermal stability (TS): Reported as the percentage mass retained in the +6 mm fraction vs. total residue; secondary indices for 3–6 mm and

Overview

Key topics and requirements

Scope and applicability: Brown coal, lignite, anthracite, and non‑caking bituminous coal (caking index = 0).
Test principle: Heat 6–13 mm coal samples out of contact with air at (850 ± 15) °C for 30 min, cool, sieve residues and calculate TS and TF.
Thermal stability (TS): Reported as the percentage mass retained in the +6 mm fraction vs. total residue; secondary indices for 3–6 mm and

ISO/TS 4667:2022 PDF

Технические детали

Abstract

Overview

Key topics and requirements

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Abstract

Overview

Key topics and requirements

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