Standard No.:	GB/T 40485-2021
English Name:	Method of determining automatically the random reflectance of vitrinite in coal—Image analysis method
Chinese Name:	煤的镜质体随机反射率自动测定 图像分析法
Chinese Classification:	D26    Coal petrography
Professional Classification:	GB    National Standard
Issued by:	SAMR; SAC
Issued on:	2021-08-20
Implemented on:	2022-3-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	7500 words
Price(USD):	225.00
Delivery:	via email in 1~3 business day

本文件规定了利用图像分析法自动测定煤的镜质体随机反射率的原理、仪器设备与测试系统、材料、样品制备、测定步骤、结果表述、精密度、检测报告等。
本文件适用于烟煤和无烟煤之单层煤或混配煤的镜质体随机反射率自动测定。褐煤的腐植体随机反射率测定可参照使用。