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GB/T 5449: Historical versions
| Std ID | Version | USD | Buy | Deliver [PDF] in | Title (Description) |
| GB/T 5449-2015 | English | 189 |
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Determination of roga index of bituminous coal
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| GB/T 5449-1997 | English | 319 |
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Determination of roga index of bituminous coal
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| GB/T 5449-1985 | English | RFQ |
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Determination of Roga index of bituminous coal
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Basic data
| Standard ID | GB/T 5449-2015 (GB/T5449-2015) |
| Description (Translated English) | Determination of roga index of bituminous coal |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | D21 |
| Classification of International Standard | 73.040 |
| Word Count Estimation | 9,951 |
| Date of Issue | 2015-05-15 |
| Date of Implementation | 2015-07-01 |
| Older Standard (superseded by this standard) | GB/T 5449-1997 |
| Quoted Standard | GB 474; GB/T 483 |
| Regulation (derived from) | National Standard Announcement 2015 No. 15 |
| 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 determination of bituminous coal Roca index (RL) method feeds, equipment, test procedures, results are expressed and precision of the method and the like. This Standard applies to bituminous coal. |
GB/T 5449-2015: Determination of roga index of bituminous coal
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Determination of roga index of bituminous coal
ICS 73.040
D21
National Standards of People's Republic of China
Replacing GB/T 5449-1997
Bituminous coal Roca index measuring method
Issued on. 2015-05-15
2015-07-01 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 5449-1997 "Determination of bituminous coal Roca index." This standard compared with GB/T 5449-1997, in addition to knitting
Series modifications, mainly technical changes are as follows.
--- Modification by the speed of the drum (50 ± 2) r/min to (50 ± 0.5) r/min (see 41, 1997 version 4.1.7.);
--- Added muffle furnace technical requirements (see 43, 1997 version 4.1.6.);
--- Deleting "and by the National Coal Standardization Technical Committee approval" (see Chapter 5, 1997 edition 5.2);
After --- modify the sample preparation to the test of time should not be more than a week to 5d (see Chapter 6, 1997 edition 5.1);
--- Increased use of mechanical means of agitation method (see 72, 1997. Version 6.2.);
--- Modified "8.2 Expression of results", put forward by the GB/T 483 rules for rounding the results reported (see 82, 1997 Version 7.2.);
--- Added "Test Report" section (see Chapter 10).
The standard proposed by China Coal Industry Association.
This standard coal by the National Standardization Technical Committee (SAC/TC42) centralized.
This standard was drafted. CCRI Detection Research Branch.
The main drafters of this standard. Yan Sui, Yang Huayu, Zhou Lu, Li FIG.
This standard replaces the standards previously issued as follows.
--- GB/T 5449-1985; GB/T 5449-1997.
Bituminous coal Roca index measuring method
1 Scope
This standard specifies the determination of bituminous coal Roca index (RI) method feeds, equipment, test procedures, and results are expressed Precise
Degree.
This standard applies to bituminous coal.
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 474 coal sample preparation
GB/T 483 coal analysis test methods - General provisions
3 Method summary
1g and 5g Roca index of bituminous coal samples mixed thoroughly dedicated anthracite, coking under specified conditions, the resulting cinder in particular drum
Drum test performed, Roca index calculated based on test results.
4 Equipment
4.1 drum test apparatus. constituted by two drum speed (50 ± 0.5) r/min.
Drum diameter 200mm, depth 70mm, wall thickness 3mm, wall riveting two 180 ° apart baffle plate length 70mm, width 30mm,
Thick 3mm. Drum cover, cover with a tight drum cooperate to ensure sealing drum. Size Figure 1.
Millimeters
1 drum test apparatus of FIG.
4.2 Pressure control. Pressure 5.9 × 105Pa, size specifications in Figure 2.
4.3 muffle furnace. furnace temperature zone length not less than 120mm, capable of maintaining the temperature at 850 ℃ ± 10 ℃. There is a rear wall of furnace vent and
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