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GB/T 217-2008: Determination of true relative density of coal
Status: Valid GB/T 217: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 217-2008 | English | 169 |
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3 days [Need to translate]
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Determination of true relative density of coal
| Valid |
GB/T 217-2008
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| GB/T 217-1996 | English | 239 |
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2 days [Need to translate]
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Determination of true relative density of coal
| Obsolete |
GB/T 217-1996
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| GB 217-1981 | English | 199 |
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2 days [Need to translate]
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Determination of the specific gravity of coal
| Obsolete |
GB 217-1981
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PDF similar to GB/T 217-2008
Basic data | Standard ID | GB/T 217-2008 (GB/T217-2008) | | Description (Translated English) | Determination of true relative density of coal | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D21 | | Classification of International Standard | 73.040 | | Word Count Estimation | 7,779 | | Date of Issue | 2008-07-29 | | Date of Implementation | 2009-05-01 | | Older Standard (superseded by this standard) | GB/T 217-1996 | | Quoted Standard | GB/T 212 | | Regulation (derived from) | National Standard Approval Announcement 2008 No.12 (Total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 truth coal density determination of terms and definitions, method feeds, reagents and materials, equipment, measuring step, results of calculation and precision. This standard applies to anthracite, bituminous coal and lignite. | GB/T 217-2008: Determination of true relative density of 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.
Determination of true relative density of coal
ICS 73.040
D21
National Standards of People's Republic of China
Replacing GB/T 217-1996
The truth of the coal density determination
Posted 2008-07-29
2009-05-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard replaces GB/T 217-1996 "coal density determination of the truth."
This standard compared with GB/T 217-1996, the main changes are.
--- According to GB/T 1.1-2000 "Standardization Guide Part 1. Standard structure and writing rules" and GB/T 483-
2007 "Test methods for coal analysis General Provisions" revised written format, increasing the foreword, terms and definitions, test report.
--- Modify the density bottle figure error, the original 60mL to 50mL (the original 5.4, this version 6.3).
The standard proposed by China Coal Industry Association.
This standard by the National Standardization Technical Committee of Coal.
This standard was drafted. CCRI coal analysis laboratory.
The main drafters of this standard. Dengxiu Min, Shi Yuying.
This standard replaces the standards previously issued as follows.
--- GB/T 217-1963, GB/T 217-1996.
The truth of the coal density determination
1 Scope
This standard specifies the truth of coal density determination of terms and definitions, methods feeds, reagents and materials, equipment, measuring step, junction
If the calculation and precision.
This standard applies to anthracite, bituminous and lignite.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 212 industrial analysis of coal (GB/T 212-2008, ISO 11722.1999, ISO 1171.1997, ISO 562.
1998, NEQ)
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
20 ℃, mass ratio of coal (not including coal pores) with the quality and volume of water.
4 Method summary
Sodium dodecyl sulfate solution as wetting agents, the coal sample vial wet density settlement and exclude gas adsorption, according to the coal discharged
The same volume of water mass calculated density of coal truth.
5 Reagents and materials
Sodium dodecyl sulfate. chemically pure, 20g/L. Weigh 20g sodium lauryl sulfate is dissolved in water and diluted to 1L.
6 Equipment
6.1 Analysis of balance. a sense of the amount of 0.1mg.
6.2 constant temperature water bath. Temperature range 10 ℃ ~ 35 ℃, temperature control accuracy of ± 0.5 ℃.
6.3 Density bottle. with a ground capillary stopper, capacity 50mL, as shown in FIG.
6.4 Graduated pipettes. capacity 10mL.
6.5 mercury thermometers. 0 ℃ ~ 50 ℃, the minimum scale 0.2 ℃.
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