ISO 1015-1992 PDF

Full title and description

ISO 1015:1992 — Brown coals and lignites — Determination of moisture content — Direct volumetric method. This International Standard specifies a direct volumetric laboratory method for determining the moisture content of brown coals and lignites (either total moisture or moisture in the analysis sample) using volatile solvents and volumetric measurement techniques.

Abstract

ISO 1015:1992 describes the principle, required reagents, sample preparation, apparatus and calibration, step-by-step procedure, method precision, calculation and expression of results, and the required contents of the test report for the direct volumetric determination of moisture in brown coals and lignites. The standard provides guidance on comparability with indirect gravimetric methods and recommends solvents (for example toluene or xylene) where appropriate.

General information

• Status: Withdrawn (listed as withdrawn in the ISO catalogue).
• Publication date: 15 March 1992 (Second edition).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 73.040 (Coals).
• Edition / version: 2nd edition (1992).
• Number of pages: 3 pages.

Scope

This standard specifies a direct volumetric method for determining moisture content in brown coals and lignites. It is applicable to the determination of either the total moisture content of a sample or the moisture content of the analysis (sub)sample. The procedure covers reagents, apparatus calibration, the extraction and volumetric measurement technique, calculations, precision, and reporting. It is intended for laboratory use where a volumetric solvent-extraction approach is preferred or required and for cases where comparability with gravimetric methods is necessary.

Key topics and requirements

• Principle of the direct volumetric moisture-determination method.
• Required reagents and purity (examples: toluene or xylene recommended for compatibility with drying temperatures and comparability to gravimetric methods).
• Sample preparation and representative sub-sampling for analysis.
• Apparatus description and calibration procedures (volumetric glassware, condensers, measuring devices).
• Step-by-step procedure for solvent extraction, volumetric measurement and correction factors.
• Precision, repeatability and reporting requirements.
• Calculation and expression of moisture results and required contents of the test report.
• Notes on comparability with indirect gravimetric methods (reference to related ISO gravimetric methods).

Typical use and users

Used by analytical laboratories, coal and lignite producers, power stations and utility laboratories, quality control and assurance teams, fuel testing services, research institutions working on fuel characterization, and standardization bodies. Typical uses include routine moisture determination for commercial specifications, quality control of fuel shipments, research on fuel properties, and method comparison studies against gravimetric techniques.

Related standards

Relevant related documents include the earlier ISO 1015:1975 (first edition) and ISO 5068 series (indirect gravimetric methods for moisture in brown coals and lignites), including ISO 5068:1983 and later revisions in the ISO 5068‑1/2 series (revisions published in subsequent years). The ISO/TC 27/SC 5 committee is responsible for analytical methods for solid mineral fuels.

Keywords

brown coal; lignite; moisture content; direct volumetric method; solvent extraction; toluene; xylene; fuel analysis; ISO 1015; coal testing; ISO/TC 27.

FAQ

Q: What is this standard?

A: ISO 1015:1992 is an International Standard titled "Brown coals and lignites — Determination of moisture content — Direct volumetric method" that specifies a laboratory volumetric procedure for measuring moisture in brown coals and lignites.

Q: What does it cover?

A: It covers the method principle, required reagents and apparatus, sample preparation, calibration, the extraction and volumetric measurement procedure, expression of results, precision and the required contents of the test report. It also discusses comparability with indirect gravimetric methods.

Q: Who typically uses it?

A: Analytical and QC laboratories, coal producers, power utilities, fuel testing services, research organisations, and national standards bodies involved in coal and lignite analysis.

Q: Is it current or superseded?

A: ISO 1015:1992 is listed as withdrawn in the ISO catalogue. Users should check current ISO publications and the ISO 5068 series (indirect gravimetric methods and later revisions) or other more recent ISO documents for the preferred or current moisture-determination procedures.

Q: Is it part of a series?

A: ISO 1015 relates to other ISO methods for moisture determination of solid mineral fuels and is associated conceptually with the ISO 5068 series (indirect gravimetric methods). It replaces the earlier ISO 1015:1975 edition as the second edition published in 1992.

Q: What are the key keywords?

A: Brown coal; lignite; moisture; direct volumetric method; solvent extraction; toluene; xylene; coal analysis; ISO 1015.