GB/T 6948-2008 in English

VALID

Method of determining microscopically the reflectance of vitrinite in coal

Issued on:2008-08-07
Implemented on:2009-03-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $180.00
$175.00

Standard No:	GB/T 6948-2008
Document status:	VALID
Title in English:	Method of determining microscopically the reflectance of vitrinite in coal
Title in Chinese:	煤的镜质体反射率显微镜测定方法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2008-08-07
Implemented on:	2009-03-01
Superseding:	GB/T 6948-1998 Microscopical determination of the reflectance of vitrinite in coal
ICS Classification:	73.040-Coals
Chinese Classification:	D26-Coal petrography
Professional Classification:	GB-National Standard
Related Keywords:	vitrinite reflectance measurements coal scopethis standard mixed coal bituminous coal mixed coal composition
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《GB/T 6948-2008煤的镜质体反射率显微镜测定方法》由TC42（全国煤炭标准化技术委员会）归口，TC42SC4（全国煤炭标准化技术委员会煤岩分会）执行，主管部门为中国煤炭工业协会。
本标准规定了在显微镜油浸物镜下测定煤的抛光面上镜质体最大反射率和随机反射率的方法。
本标准适用于烟煤和无烟煤之单煤层煤或混配煤的反射率测定。褐煤的反射率测定、沉积岩中分散有机质的反射率测定可参照使用。本标准不适用于通过自动化显微镜分析由计算机软件解释镜质体反射率测值的方法。本标准不适用于测定混配煤组成的比例。

Scope

This standard specifies the method for measuring the maximum reflectance and random reflectance of vitrinite on the polished surface of coal under the microscope oil immersion objective lens. This standard applies to the measurement of reflectance of single seam coal or mixed coal of bituminous coal and anthracite. The reflectance measurement of lignite and the reflectance measurement of dispersed organic matter in sedimentary rock can be used as reference. This International Standard does not apply to methods in which vitrinite reflectance measurements are interpreted by computer software through automated microscopic analysis. This standard does not apply to the determination of the proportion of mixed coal composition.

More samples: DL/T 368-2010 DL/T 5154-2012 QC/T 942-2021

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