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GB/T 40485-2021 Active
GB/T 40485-2021 Method of determining automatically the random reflectance of vitrinite in coal—Image analysis method
Abstract
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.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 40485-2021 |
| CCS | \nCoal rock |
| ICS | \nCoal |
| Implement Date | 2022-03-01 |
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