ISO 1017-1985 rus PDF

Full title and description

ISO 1017:1985 — Brown coals and lignites — Determination of acetone‑soluble material ("resinous substances") in the toluene‑soluble extract. This short method specifies how to extract the toluene‑soluble fraction of a brown coal or lignite sample and determine the fraction soluble in acetone (commonly referred to as "resinous substances").

Abstract

A toluene‑soluble extract obtained from a brown coal or lignite sample (prepared according to ISO 975) is extracted with acetone at about 18–22 °C; the acetone‑soluble fraction is separated (filtration or centrifugation), the solvent evaporated and the residue dried to constant mass. The percentage of acetone‑soluble material is calculated from the dried residue.

General information

• Status: Withdrawn (withdrawal recorded in ISO life‑cycle; see revision history).
• Publication date: 12 December 1985 (Edition 2, 1985).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 73.040 (Brown coal and lignite).
• Edition / version: Edition 2 (1985).
• Number of pages: 2 pages (concise method sheet).

Scope

The standard provides a laboratory procedure for determining the acetone‑soluble proportion of the toluene‑soluble extract of brown coals and lignites. It is intended for routine analytical use where a quick determination of resinous (acetone‑soluble) constituents of the toluene extract is required; the toluene extraction itself is performed according to ISO 975.

Key topics and requirements

• Preparation of toluene‑soluble extract from a representative coal/lignite laboratory sample (reference: ISO 975).
• Extraction of the toluene extract with acetone at controlled temperature (about 18–22 °C).
• Separation of acetone‑soluble fraction by filtration or centrifugation, solvent evaporation and drying to constant mass.
• Calculation of acetone‑soluble material as percentage of the original dried residue (gravimetric determination).
• Short procedural standard intended for use in coal testing laboratories and technical control of brown coal/lignite products.

Typical use and users

Analytical and quality‑control laboratories in mining and coal processing, researchers working on coal characterization, fuel technologists and organizations assessing brown coal/lignite for processing or utilization. Laboratories use this method as part of a panel of analyses (moisture, ash, toluene/benzene extractives and humic substances) to characterise coal properties.

Related standards

ISO 975 (methods for preparing the toluene‑soluble extract) is a normative reference for the extraction step. ISO 1017:1985 was later revised and superseded by subsequent editions (ISO 1017:2006 and later revisions), so users should consult the newer ISO 1017 publications for currently valid procedures. The standard is developed under ISO/TC 27 (Solid mineral fuels).

Keywords

brown coal; lignite; acetone‑soluble; resinous substances; toluene‑soluble extract; coal analysis; ISO 1017; ISO 975; laboratory method.

FAQ

Q: What is this standard?

A: ISO 1017:1985 is an International Standard that specifies a gravimetric method for determining the acetone‑soluble (resinous) portion of the toluene‑soluble extract from brown coals and lignites. It is a short (2‑page) procedural standard.

Q: What does it cover?

A: It covers extraction of the toluene‑soluble fraction (prepared according to ISO 975), subsequent extraction with acetone at ~18–22 °C, separation of the acetone‑soluble fraction, evaporation of solvent, drying to constant mass and calculation of the percentage acetone‑soluble material.

Q: Who typically uses it?

A: Coal testing and research laboratories, quality control staff in mining and fuel processing, and technical experts characterising brown coal and lignite feedstocks.

Q: Is it current or superseded?

A: ISO 1017:1985 has been withdrawn and later revised by newer editions (for example ISO 1017:2006 and later revisions). Users requiring a current, authoritative procedure should consult the most recent ISO 1017 edition available from ISO or their national standards body. The ISO catalogue shows the 1985 edition as withdrawn and lists later revisions.

Q: Is it part of a series?

A: It forms part of the suite of ISO methods for analysis of brown coals and lignites (ICS 73.040), where related methods include ISO 975 for toluene/benzene extract yields and other ISO methods for moisture, ash and humic substances.

Q: What are the key keywords?

A: Brown coal, lignite, acetone‑soluble, resinous substances, toluene‑soluble extract, coal analysis, gravimetric method, ISO 1017, ISO 975.

Note on language/format availability: Russian translations or scanned "rus" PDF copies of older ISO standards are sometimes offered commercially or by national bodies/third‑party suppliers (examples of commercial listings exist), but ISO publications are copyright‑protected and the official authoritative text should be obtained from ISO or an authorized national standards body.