GB/T 40485-2021 Active National standards

GB/T 40485-2021 Method of determining automatically the random reflectance of vitrinite in coal—Image analysis method

Publish Date: 2021-08-20 Implement Date: 2022-03-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 40485-2021

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: \nCoal rock

ICS Name: \nCoal

Publish Date: 2021-08-20

Implement Date: 2022-03-01

Pages: 12 pages

Scope

This document specifies the principles of using image analysis to automatically determine the random reflectance of vitrinite in coal, the instruments and testing systems, materials, sample preparation, measurement steps, result presentation, precision, and test reports, etc.
This document is applicable to the automatic determination of the random reflectance of vitrinite in single-layer coal or mixed coal of bituminous coal and anthracite. The determination of the random reflectance of huminite in lignite can be used for reference.

Development Information

Word Count: 25 Thousand words Pages: 12 pages

Referenced Standards

GB/T 16773-2008 Method of preparing coal samples for the coal petrographic analysis GB/T 22063-2018 Microscopes—Interfacing connection type C GB/T 29298-2012 Digital still camera general specification GB/T 12937-1995 Terms relating to coal petrology GB/T 12937-2008 Terms relating to coal petrology GB/T 20733-2006 Digital still cameras—Terminology GB/T 20733-2022 Digital camera—Vocabulary MT/T 1053-2008 Technical conditions of microscope photometer for vitrinite reflectance determination

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