ISO 1017:2025 PDF

Name: ISO 1017:2025 — Brown coals and lignites — Determination of acetone-soluble material ("resinous substance") in the benzene-soluble extract
SKU: ISO 1017:2025
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Brown coals and lignites — Determination of acetone-soluble material ("resinous substance") in the benzene-soluble extract

Название (английский):

ISO 1017:2025

Brown coals and lignites — Determination of acetone-soluble material ("resinous substance") in the benzene-soluble extract

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 4
Дата публикации:: 29 мая 2025 г.
Издание:: ISO IS 1017 edition 4 version 1
ICS:: 73.040

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Описание (английский):

This document specifies a method of determining the mass fraction of acetone-soluble material (“resinous substance”) in the benzene-soluble extract from brown coals and lignites. NOTE The acetone extract also contains a mass fraction of wax dissolved simultaneously with the "resinous substance".

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview

ISO 1017:2025 specifies a laboratory method to determine the mass fraction of acetone-soluble material (described as the "resinous substance") in the benzene-soluble extract from brown coals and lignites. The method is intended for routine analysis and comparative evaluation of benzene-extract fractions prepared according to ISO 975. Note that the acetone extract can also include a fraction of wax dissolved simultaneously with the resinous substance.

This fourth edition updates terminology and apparatus references and clarifies procedural requirements for precise, reproducible measurement.

Key Topics

Scope and purpose: Quantify the acetone-soluble fraction in benzene-soluble extracts from brown coal and lignite to support quality control, research and material characterisation.

Principle: Extract the benzene-soluble residue with acetone at controlled temperature (18 °C to 22 °C), separate the soluble fraction by filtration or centrifugation, evaporate solvent and dry the residue to constant mass. Calculate the mass fraction from the dried residue.

Reagent: Acetone of analytical reagent grade (flammable; handle with appropriate safety precautions).

Critical test conditions: Maintain strict temperature control - solvent and room temperatures at start and end must remain within 18 °C to 22 °C and not differ by more than 0.5 °C.

Apparatus and metrology:

Centrifuge capable of ~1 600 r/min and suitable glass centrifuge vessels (15 ml) with ground-glass stoppers.
Wire-cloth test sieve, nominal aperture 100 µm for sample preparation.
Evaporating dish (glass/silica), vacuum drying oven (80 °C ± 2 °C, ~50 kPa) and air oven (100 °C–110 °C).
Analytical balance with 1 mg resolution and thermometer with 0.1 °C resolution.

Representative procedure details: Typical test uses approximately 0.5 g sample with 7 ml acetone, shaken for 2 min and handled to minimise solvent warming. Follow Clause 8 for full steps and Clause 9 for result expression.

Applications

Quality control: Monitor variability in extract compositions for brown coal and lignite processing.

Research and development: Compare resinous substance content across samples, study extract composition and behaviour.

Conformity and reporting: Provide standardised results for specifications, material characterisation and contractual testing.

Process optimisation: Inform decisions on solvent extraction conditions, blend formulation and downstream treatment where resin/wax content is relevant.

Related Standards

ISO 975 - Brown coals and lignites - Determination of yield of benzene-soluble extract - Semi-automatic method (normative reference for obtaining benzene-soluble extract used by ISO 1017:2025).

ISO 1017:2006 - Previous edition (cancelled and technically revised by the 2025 edition).

For implementation, laboratories should consult the full ISO 1017:2025 text for complete procedural steps, precision data (Clause 10) and reporting requirements (Clause 11). Always follow applicable safety and licensing obligations when using ISO publications.

ISO 1017:2025 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Related Standards

Технические детали

ISO 1017:2006

Brown coals and lignites — Determination of acetone-soluble material ("resinous substance") in the benzene-so…

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