TS ISO 7404-1
Methods for the petrographic analysis of coals - Part 1: Vocabulary
This part of ISO 7404 defines terms that are used in connection with both maceral and microlithotype
analyses, and with the determination of the reflectance of vitrinite. It applies to the terms used in the
examination of coal of all ranks.
This part of ISO 7404 is not intended to be a comprehensive glossary of coal petrographic terminology,
nor does it attempt to provide sufficient information to allow recognition of all the coal components
described. Further information may be obtained from the relevant ICCP publications[3][4][5].
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About This Item
TS ISO 7404-1 is the vocabulary standard for coal petrographic analysis, providing the common terminology used in maceral and microlithotype examination and in the determination of vitrinite reflectance. In practice, it supports consistent naming of coal constituents and measured properties so that petrographic observations can be compared reliably.
Why the terminology matters
Coal petrography studies the microscopic organic components that make up coal. Macerals are the principal organic constituents derived from plant material, while microlithotypes describe specific microscopic associations of those constituents. Vitrinite reflectance is a widely used indicator of coal rank and thermal maturity. By defining the terms used in these areas, this part of ISO 7404 helps laboratories, researchers and industry users communicate with greater precision.
What this part does and does not do
The standard applies to terms used in the examination of coal of all ranks. It is not intended to be a comprehensive glossary of coal petrographic terminology, and it does not by itself provide enough information to identify every coal component described. For deeper background, the scope points users to relevant ICCP publications. In that sense, it functions as a focused terminology reference rather than a full interpretive manual.
- covers terms used in maceral analysis
- covers terms used in microlithotype analysis
- covers terms used in vitrinite reflectance determination
- applies to coal of all ranks
- is not a comprehensive coal petrography glossary
- Publication Date: 15.02.2021
- Standard Status: H (İptal Edilmiş Standard/Withdrawn standard)
- Publisher: TSE
- Document Language: en
- ICS Classification: 01.040.73 Madencilik ve Mineraller (Terimler); 73.040 Kömürler
- Pages: 17
- Source Standard: ISO 7404-1:2016
- International Equivalents: ISO 7404-1-EQV
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