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GB/T 7702.19-2008: Test method for granular activated carbon from coal -- Determination of carbon tetrachloride (CCl4) desorption
Status: Valid GB/T 7702.19: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 7702.19-2008 | English | 139 |
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Test method for granular activated carbon from coal -- Determination of carbon tetrachloride (CCl4) desorption
| Valid |
GB/T 7702.19-2008
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| GB/T 7702.19-1997 | English | 199 |
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Standard test method for granultar activated carbon from coal--Determination of carbon tetrachloride (CCI4) desportion
| Obsolete |
GB/T 7702.19-1997
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PDF similar to GB/T 7702.19-2008
Basic data | Standard ID | GB/T 7702.19-2008 (GB/T7702.19-2008) | | Description (Translated English) | Test method for granular activated carbon from coal -- Determination of carbon tetrachloride (CCl4) desorption | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D24 | | Classification of International Standard | 75.160.10 | | Word Count Estimation | 6,661 | | Date of Issue | 2008-11-20 | | Date of Implementation | 2009-05-01 | | Older Standard (superseded by this standard) | GB/T 7702.19-1997 | | Quoted Standard | GB/T 7702.10-2008; GB/T 7702.13-1997; WJ 2281; WJ 2285 | | Regulation (derived from) | National Standard Approval Announcement 2008 No.19 (Total No.132) | | 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 principles for determination of coal desorption of granular activated carbon tetrachloride, measurement procedures and results of calculation content. This section applies to coal granular activated carbon (hereinafter referred to as activated carbon) determination of carbon tetrachloride desorption rate. | GB/T 7702.19-2008: Test method for granular activated carbon from coal -- Determination of carbon tetrachloride (CCl4) desorption
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Test method for granular activated carbon from coal. Determination of carbon tetrachloride (CCl4) desorption
ICS 75.160.10
D24
National Standards of People's Republic of China
Replacing GB/T 7702.19-1997
Test method for granular activated carbon coal quality
Determination of carbon tetrachloride desorption rate
Posted 2008-11-20
2009-05-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 7702 "Test method for granular activated carbon from coal quality" is divided into.
--- Part 1. Determination of moisture;
--- Part 2. Determination of particle size;
--- Part 3. Determination of strength;
--- Part 4. Determination of packing density;
--- Part 5. Determination of water capacity;
--- Part 6. Determination of methylene blue adsorption value;
--- Part 7. Determination of iodine adsorption value;
--- Part 8. Determination of phenol adsorption;
--- Part 9. Determination of the ignition point;
--- Part 10. Determination of benzene vapor chloroethane vapor guard time;
--- Part 13. Determination of carbon tetrachloride adsorption rate;
--- Part 14. Determination of sulfur capacity;
--- Part 15. Determination of ash;
--- Part 16. Determination of pH;
--- Part 17. Determination of floating rate;
--- Part 18. Determination of caramel;
--- Part 19. Determination of carbon tetrachloride desorption rate;
--- Part 20. specific surface area and pore volume determination.
This section GB/T 7702 Part 19.
This Part replaces GB/T 7702.19-1997 "granular activated carbon from coal - Determination of carbon tetrachloride - Test methods desorption rate."
This section compared with the GB/T 7702.19-1997, main differences are as follows.
a) according to the standard structure GB/T 1.1-2000 "Standardization Guide Part 1. Structure and rules are written standard" and
GB/T 20001.4-2001 "work of standardization Part 4. Chemical analysis methods" to adjust;
b) correct airflow than the speed of 10L/(min · cm2) for the gas flow 10L/min;
c) dividing the value specified timer 0.1s;
d) The amount of the unit according to uniform regulations to be modified.
This section proposed and managed by China North Industries Group Corporation.
This section is drafted. Shanxi Xinhua Chemical Co., Ltd.
The main drafters of this section. Li Bing, late show wide, to Dong Yuan, Zhao Jijun, Zhao Honghai, Zhang Xu, Li Ruomei.
This part of the standard replaces the previous editions are.
--- GB/T 7702.19-1987, GB/T 7702.19-1997.
Test method for granular activated carbon coal quality
Determination of carbon tetrachloride desorption rate
1 Scope
This section sets out the principles for determination of coal quality granular activated carbon CTC desorption, the measurement step and results calculated and so on.
This section applies to coal quality granular activated carbon (hereinafter referred to as activated charcoal) Determination of carbon tetrachloride desorption rate.
2 Normative references
The following documents contain provisions which, through GB/T reference in this 7702 constitute provisions of this part. For dated reference documents
Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section
Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this
section.
Granular activated carbon coal quality 7702.10-2008 Determination of benzene vapor chloroethane vapor guard time GB/T Test Method
GB/T 7702.13-1997 QUALITY granular activated carbon adsorption test method for determination of carbon tetrachloride
WJ2281 protective equipment for testing the meter verification procedures
WJ2285 activated carbon impregnated activated carbon test tube assay verification procedures
Principle 3
After the required test conditions, the activated carbon adsorption of carbon tetrachloride saturated after desorption, desorption constant for the desorption of carbon tetrachloride
The mass fraction of carbon tetrachloride with activated carbon adsorption of carbon tetrachloride indicates the measured desorption capability.
4 instruments and equipment
4.1 desorption rate test device (see Fig. 1).
Process Description. The desorption rate testing device switch is connected with the compressed air, pass into the air, air is first fitted into the cotton and live
Activated carbon air purifier by containing silica gel or anhydrous calcium chloride drier, piston flowmeter, a tube furnace, a thermometer, a serpentine tube (with
More than 1m long glass tube firing) into the measuring tube.
1 --- air purifier; 6,9 --- thermometer;
2 --- dryers; 7 --- serpentine tubes;
3 --- piston; 8 --- measuring tube;
4 --- flowmeter; 10 --- water bath.
5 --- tube furnace;
Figure 1 Schematic of experimental desorption rate
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