GB/T 7702.19-2008Test method for granular activated carbon from coal - Determination of carbon tetrachloride (CCl4) desorption (English PDF)
煤质颗粒活性炭试验方法 四氯化碳脱附率的测定
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
November 20, 2008
Implementation date
May 1, 2009
Scope
GB/T 7702.19-2008 is the English-translated version of 煤质颗粒活性炭试验方法 四氯化碳脱附率的测定.
GB/T 7702.19-2008 is the Chinese standard "Test method for granular activated carbon from coal - Determination of carbon tetrachloride (CCl4) desorption". Its scope clause reads: 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.
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Document preview — GB/T 7702.19-2008
National Standard of the People's Republic of China
- ICS
- 75.160.10
- Classification
- D 24
- Replacing
- GB/T 7702.19-1997
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
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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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Similar standards
Editions of GB/T 7702.19
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 7702.19-2008 | Test method for granular activated carbon from coal - Determination of carbon tetrachloride (CCl4) desorption | current edition | Current |
| GB/T 7702.19-1997 | Test method for granular activated carbon from coal - Determination of carbon tetrachloride (CCl4) desorption | previous edition | Superseded |
This page sells the current edition, GB/T 7702.19-2008. Earlier editions are listed for reference only.
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GB/T 7702.20-2025 — Test method for granular activated carbon from coal — Part 20: Determination of pore volume and specific surface area
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GB/T 7702.20-2008 — Test method for granular activated carbon from coal - Determination of pore volume and specific surface area
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