GB/T 40485-2021
Method of determining automatically the random reflectance of vitrinite in coal—Image analysis method (English Version)
- Standard No.
- GB/T 40485-2021
- Language
- Chinese, Available in English version
- Release Date
- 2021
- Published By
- 国家市场监督管理总局、中国国家标准化管理委员会
- Latest
- GB/T 40485-2021
- Scope
- This document stipulates the principle, equipment and test system, materials, sample preparation, measurement steps, result expression, precision, test report, etc. of automatic determination of vitrinite random reflectance of coal by image analysis method. This document is applicable to the automatic determination of vitrinite random reflectance of single layer coal or mixed coal of bituminous coal and anthracite. The random reflectance measurement of lignite humus can be used as a reference.
GB/T 40485-2021 Referenced Document
- GB/T 12937 Terms relating to coal petrology
- GB/T 16773-2008 Method of preparing coal samples for the coal petrographic analysis
- GB/T 20733 Digital camera—Vocabulary*， 2022-03-09 Update
- GB/T 22063-2018 Microscopes—Interfacing connection type C
- GB/T 29298-2012 Digital still camera general specification
- MT/T 1053-2008 Technical conditions of microscope photometer for vitrinite reflectance determination
GB/T 40485-2021 history
- 2021 GB/T 40485-2021 Method of determining automatically the random reflectance of vitrinite in coal—Image analysis method
