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GB/T 15590-2008 English PDF

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GB/T 15590-2008: Method of determining microlithotype composition
Status: Valid

GB/T 15590: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 15590-2008English299 Add to Cart 3 days [Need to translate] Method of determining microlithotype composition Valid GB/T 15590-2008
GB/T 15590-1995English399 Add to Cart 3 days [Need to translate] Determination of microlithotype composition Obsolete GB/T 15590-1995

PDF similar to GB/T 15590-2008


Standard similar to GB/T 15590-2008

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Basic data

Standard ID GB/T 15590-2008 (GB/T15590-2008)
Description (Translated English) Method of determining microlithotype composition
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard D26
Classification of International Standard 73.040
Word Count Estimation 13,169
Date of Issue 2008-08-07
Date of Implementation 2009-03-01
Older Standard (superseded by this standard) GB/T 15590-1995
Quoted Standard GB/T 6948-2008; GB/T 8899-1998; GB/T 12937; GB/T 16773
Adopted Standard ISO 7404-4-1988, MOD
Regulation (derived from) National Standard Approval Announcement 2008 No.12 (Total No.125)
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 volume fraction of the microstructure of coal and rock types on pulverized coal -rays or lump -rays. This standard applies to bituminous coal and anthracite coal and rock types microscopic measurement.

GB/T 15590-2008: Method of determining microlithotype composition

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Method of determining microlithotype composition ICS 73.040 D26 National Standards of People's Republic of China Replacing GB/T 15590-1995 Determination of microscopic coal and rock type (ISO 7404-4. 1988, Methodsforthepetrographic Part 4. Methodofdeterminingmicrolithotype, carbominerite andmineritecomposition, MOD) Posted 2008-08-07 2009-03-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This revised standard adopts ISO 7404-4. 1988 (E) "bituminous coal and anthracite coal and rock analysis methods - Part 4. microscopic coal and rock type, Microscopic determination of mineralization and type of microscopic mineral composition of the type "(in English). This standard is based on ISO 7404-4. redraft 1988 (E). For ease of comparison, the information listed in Appendix A of this national standard List of international control and provision of standard terms and conditions. Because of legal requirements and the actual situation, the present standard in the use of international standards has been modified. These technical differences vertical single Line identification in which they are involved in terms of margin. List of technical differences and the reasons given in Appendix B for reference. For ease of use, this standard also made the following editorial changes. a) "this International Standard" be replaced by "this standard"; b) use a decimal point instead of a decimal comma ",". ","; c) Remove the foreword and introduction of international standards. This standard replaces GB/T 15590-1995 "Determination of microscopic coal and rock type." This standard changes GB/T 15590-1995, compared as follows. --- According to GB/T 1.1-2000 "Standardization Guide Part 1. Standard structure and write rules" requirement, revised standard Method 4 points Add eight p.m. grid sheet of reflective microscope eyepiece, under oil immersion objective, according to the method of the 16773 GB/T representatives prepared Of pulverized coal-rays (or lump-rays), according to various microscopic set of packet (or MACERALS) and minerals in the number of cells at the intersection of the identified significant Micro coal and rock types, mineralization type microscopic and microscopic mineral type, with a few points of each type of statistical method volume fraction.

5 Apparatus and materials

5.1 Reflective Microscope Available to × 60 × 25 oil immersion objective and eyepiece × 12 × 8 to the eyepiece should be able to place eight p.m. grid sheet. 5.2 grid sheet eight p.m. It should coincide with the size of the eyepiece and eyepiece, combined projection lens to the effective coverage area of \u200b\u200bthe sample on a 50μm × 50μm, grid In the form shown in Figure 1. 5.3 Counter Can be recorded separately for each type of measuring points and total points.

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