ISO 975:2021 PDF
Brown coals and lignites — Determination of yield of benzene-soluble extract — Semi-automatic method
Brown coals and lignites — Determination of yield of benzene-soluble extract — Semi-automatic method
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 4
- Дата публикации:
- 7 декабря 2021 г.
- Издание:
- ISO IS 975 edition 5 version 1
- ICS:
- 73.040
This document specifies a semi-automatic method for determination of the yield of benzene-soluble extract in brown coals and lignites.
Abstract
Overview
ISO 975:2021 specifies a semi-automatic method for determining the yield of benzene-soluble extract in . This standard outlines the use of a dedicated extraction instrument that combines extraction, rinsing, and evaporation processes to accurately quantify benzene-soluble extracts. This procedure is vital for assessing the quality and chemical characteristics of brown coal and lignite samples in both research and industrial settings.
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