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GB/T 15590-2008: Method of determining microlithotype composition
Status: Valid GB/T 15590: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 15590-2008 | English | 299 |
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Method of determining microlithotype composition
| Valid |
GB/T 15590-2008
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| GB/T 15590-1995 | English | 399 |
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Determination of microlithotype composition
| Obsolete |
GB/T 15590-1995
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PDF similar to GB/T 15590-2008
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Count Estimation | 13,169 | | Date of Issue | 2008-08-07 | | Date of Implementation | 2009-03-01 | | Older Standard (superseded by this standard) | GB/T 15590-1995 | | Quoted Standard | GB/T 6948-2008; GB/T 8899-1998; GB/T 12937; GB/T 16773 | | Adopted Standard | ISO 7404-4-1988, MOD |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---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.
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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