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//ISO 602:2025

ISO 602:2025

Name: ISO 602:2025 — Coal — Determination of mineral matter
SKU: ISO 602:2025
Price: 25 EUR
Availability: InStock

Coal — Determination of mineral matter

Название (английский):

ISO 602:2025

Coal — Determination of mineral matter

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 8
Дата публикации:: 12 августа 2025 г.
Издание:: ISO IS 602 edition 4 version 1
ICS:: 73.040

Тип поставки:

Full version25 €Ask AI2 €Read online 24h10 €Read online 72h15 €

Язык документа:

ruen

Срок поставки:1 рабочий день

Цена:25 €

Описание (английский):

This document specifies a method of determining the amount of mineral matter in all types of coal, including brown coals and lignites.

Abstract

Overview

ISO 602:2025 - Coal - Determination of mineral matter specifies a laboratory method to determine the mineral matter content of all types of coal, including brown coals and lignites. The fourth edition updates apparatus and reporting requirements and provides a reproducible acid-extraction and ash-based calculation to quantify inorganic constituents retained after partial demineralization.

Key topics and technical requirements

Scope: Applicable to all coal types; results expressed on a dry basis.
Principle: Partial demineralization by sequential treatment with hydrochloric acid (HCl) and hydrofluoric acid (HF) while preserving coal substance; measure mass loss, ash the residue, determine iron and chlorine contributions, and correct for acid absorption and hydrated mineral components.
Reagents & safety: Analytical-grade HCl and HF required. HF and concentrated HCl are highly hazardous - use appropriate PPE and fume control.
Apparatus: Acid-resistant labware (PVC recommended), 200 ml beakers, quantitative filter paper with sintered alumina filter plate, balance (0.1 mg), vacuum oven, filter flask, thermometer pocket and stirrer.
Sample preparation: Analysis sample ground to pass a 200 µm sieve; air-drying or controlled drying (105–110 °C alternative) to laboratory moisture equilibrium as per ISO 11722 / ISO 5068-2.
Procedure highlights: Typical test uses ~6 g sample, sequential HCl and HF treatments at 55–60 °C with timed stirring and filtration, extensive hot-water washing, vacuum drying at 50 °C (~1.5 h) and subsequent weighing. Ash, moisture, total iron (from ash) and chlorine in the extracted coal are measured to complete calculations.
Calculation & corrections: Mineral matter M is calculated from mass loss, ash of extracted coal, chlorine (HCl equivalent), pyrite content (from iron oxide), and corrections (factors 1.5 for pyrite, 1.1 for hydrated alumino-silicates). A mineral-matter factor F = M / A (A = ash percentage) is provided.
Precision: Repeatability (same lab, duplicate runs) maximum difference 0.4% absolute; inter-laboratory reproducibility not established.

Applications and users

ISO 602:2025 is used by:

Industrial and commercial testing laboratories performing coal quality analysis
Coal producers and fuel suppliers for specification and quality control
Power stations and coking plants to assess ash-forming mineral content and combustion behavior
Environmental and research organizations studying mineral-derived emissions or beneficiation processes
Regulators and standards bodies requiring harmonized coal analysis methods

Keywords: ISO 602:2025, coal mineral matter determination, coal analysis, hydrofluoric acid, hydrochloric acid, mineral matter, ash, brown coal, lignite.

Related standards

ISO 1171 - Determination of ash
ISO 11722 / ISO 5068-2 - Moisture determination in analysis samples
ISO 157 - Forms of sulfur (iron/pyrite assessment)
ISO 587 - Determination of chlorine

For implementation, consult the full ISO 602:2025 text for exact procedural parameters, safety precautions and reporting requirements.

Технические детали

Технический комитет: ISO/TC 27/SC 5 - Methods of analysis
SKU: ISO 602:2025

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