GB/T 15591-2013 English PDF

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GB/T 15591-2013: Judging method for Mixed coal type of commercial coal
Status: Valid

GB/T 15591: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 15591-2013	169	Add to Cart	3 days	Judging method for Mixed coal type of commercial coal	Valid
GB/T 15591-1995	239	Add to Cart	2 days	Judging method for reflectogram of commercial coal	Obsolete

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Basic data

Standard ID: GB/T 15591-2013 (GB/T15591-2013)
Description (Translated English): Judging method for Mixed coal type of commercial coal
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D20
Classification of International Standard: 73.040
Word Count Estimation: 7,754
Older Standard (superseded by this standard): GB/T 15591-1995
Quoted Standard: GB/T 6948-2008
Regulation (derived from): National Standards Bulletin No. 25 of 2013
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the method for determining the type of use of commercial coal vitrinite reflectance random distribution of goods coal mix. This standard applies to bituminous coal and low-anthracite, lignite can use and reference. Largest commerci

GB/T 15591-2013: Judging method for Mixed coal type of commercial coal

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Judging method for Mixed coal type of commercial coal ICS 73.040 D20 National Standards of People's Republic of China Replacing GB/T 15591-1995 Commercial coal mixed coal type discriminating method Issued on. 2013-12-17 2014-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard replaces GB/T 15591-1995 "commodity identification method of coal reflectance distribution map." Compared with GB/T 15591-1995, The main changes are as follows. --- Modify the standard name. the "identification method commercial coal reflectance distribution" to "commercial coal mixed coal type discriminating method"; --- Revised "3 random vitrinite reflectance measurement," a reference to the content GB/T 6948-2008; --- Delete the original standard "4 measurement results calculated" chapter; --- Original standard "simple mixed coal" to "no simple notches mixed coal", "complex mixed coal" to "no complex notch mixed coal"; --- In Chapter 5, an increase of three note; --- Delete the original standard "7 Precision" chapter. The standard proposed by China Coal Industry Association. This standard coal by the National Standardization Technical Committee (SAC/TC42) centralized. This standard was drafted. Coal Science and Industry Group Xi'an Research Institute, China University of Mining (Beijing), China Coal Research Institute Beijing Coal Chemical Industry Branch. The main drafters of this standard. Xiao Wen Zhao, Li Xiaoyan, Li Jinkui, Bai Xiangfei. This standard replaces the standards previously issued as follows. --- GB/T 15591-1995. Commercial coal mixed coal type discriminating method

1 Scope

This standard specifies the method for determining the type of coal use commercial coal vitrinite reflectance random distribution of commodity coal mix. This standard applies to bituminous coal and low-anthracite, lignite can use and reference. Commercial coal vitrinite maximum reflectivity distribution can also refer use.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 6948-2008 coal vitrinite reflectance microscope measurement method (ISO 7404-5.1994, MOD)

3 random vitrinite reflectivity measurement

3.1 according to GB/T 6948-2008 8.3.4 Determination of random vitrinite reflectance. 3.2 The method according to GB/T 6948-2008 9.2 shall be calculated vitrinite reflectance mean and standard deviation.

4 reflectance distribution diagram drawing

Reflectance interval to 0.05% for the half-order, respectively, statistics measuring points for each interval, and calculate the frequency distribution of (f). A frequency of ordinate Standard, random reflectance (Rran) as abscissa reflectivity profile.

5 commercial coal mixed coal type of discrimination

5.1 based discrimination Interval from vitrinite reflectance of 0.05% in a frequency distribution statistics, "the number of notches." Frequency distribution of the number of ports concave according to vitrinite reflectance standard deviation and reflectivity, according to Table 1 on the type of commercial coal mixed coal feed Row discrimination. Note 1. vitrinite reflectance distribution trough called "notch" in the peaks and between the peaks; "several notches," the judge should consider meeting a "single coal seam" reflectance frequency Normal distribution characteristics. Note 2. For local reflectance frequency change, the reflectivity can be drawn at intervals of 0.10% of the histogram, then there is still a valid recess recess. Various types of corresponding typical reflectance distribution diagram in Appendix A. Table 1 commercial coal vitrinite reflectance distribution of Classification coding DIVIDING INDICES Reflectance standard deviation s recess number/month Types of 0 s≤0.10 0 single seam ......

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