GB/T 7702.9-2008 PDF English
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Test method for granular activated carbon from coal -- Determination of ignition temperature
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| GB/T 7702.9-1997 | English | 199 |
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Standard test method for granular activated carbon from coal--Determination of ignition temperature
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| GB/T 7702.9-1987 | English | RFQ |
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Standard test method for ignition temperature of granular activated carbon from coal
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GB/T 7702.9-2008: PDF in English (GBT 7702.9-2008) GB/T 7702.9-2008
GB
NATIONAL STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 75.160.10
D 24
Replacing GB/T 7702.9-1997
Test Method for Granular Activated Carbon from
Coal - Determination of Ignition Temperature
ISSUED ON. FEBRUARY 01, 2008
IMPLEMENTED ON. JULY 01, 2008
Issued by.
General Administration of Quality Supervision, Inspection
and Quarantine of the People’s Republic of China;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 5
4 Principle ... 5
5 Instruments, equipment and materials ... 6
6 Test conditions ... 8
7 Preparation of Reagents ... 8
8 Determination steps ... 8
9 Result calculation ... 8
10 Precision ... 9
11 Test report ... 9
Foreword
GB/T 7702 "Test Method for Granular Activated Carbon from Coal" is divided into.
— Part 1. Determination of Moisture;
— Part 2. Determination of Particle Size;
— Part 3. Determination of Hardness;
— Part 4. Determination of Packing Density;
— Part5. Determination of Absorption of Water;
— Part 6. Determination of Methylene Blue Absorption;
— Part 7. Determination of Iodine Number;
— Part 8. Determination of Phenol Absorption;
— Part 9. Determination of Ignition Temperature;
— Part 10. Determination of Service Life against Benzene and Chloroethane
Vapours;
— Part 13. Determination of CCL4 Vapour Absorption;
— Part14. Determination of Sulphur Capacity;
— Part 15. Determination of Ash Content;
— Part 16. Determination of pH Value;
— Part 17. Determination of Floatation Ratio;
— Part 18. Determination of Caramel Absorption;
— Part 19. Determination of Carbon Tetrachloride (CCl4) Desorption;
— Part 20. Determination of Pore Volume and Specific Surface Area.
This Part is part 9 of GB/T 7702.
This Part replaces GB/T 7702.9-1997 Standard test method for ignition temperature of
granular activated carbon from coal.
This Part modifies and adopts U.S. ASTM D 3466. 2006 Standard Test Method for Ignition
Temperature of Granular Activated Carbon. Following changes have been made in this
Part.
a) Change the temperature measuring point into 2 temperature measuring points;
b) Change the accuracy into that the difference between two parallel results shall not
be more than 20°C.
Compared with GB/T 7702.9-1997, the main changes of this Part are as follows.
a) Add the test condition; and specify the air source for test use;
b) Stipulate that the carbon layer shall be covered with the quartz beads with the
thickness of 15 mm and diameter of 3 mm, in order to prevent fluidization of the
carbon layer;
c) Revise the schematic diagram of quartz ignition tube; and specify the specification
and size of the quartz ignition tube.
d) Added Chapter 3 “Terms and definitions”.
This Standard was proposed by China North Industries Group.
The drafting organization of this Standard. Shanxi Xinhua Chemical Co., Ltd.
The chief drafting staffs of this Standard. Cheng Qingjun, Yuan Yidong, Zhang Xu, Zhao
Jijun, Li Weibing, Qiao Xueming, and Chi Guangxiu.
This Standard was first-time issued in 1987, and revised in 1997 for the first revision.
Test Method for Granular Activated Carbon from Coal -
Determination of Ignition Temperature
1 Scope
This Part specifies the content such as principle, steps and result calculation for the
determination of ignition temperature of granular activated carbon from coal.
This Part applies to the determination of ignition temperature of granular activated carbon
from coal.
2 Normative references
The following standards contain provisions which, through reference in this text, constitute
provisions of this Part of GB/T 7702. For dated reference, the subsequent amendments
(excluding correction) or revisions of these publications do not apply. However, the parties
who enter into agreement based on this standard are encouraged to investigate the
possibility of applying the most recent editions of the standards. For undated references,
the latest edition of the normative document referred to applies.
GB/T 7702.2 Standard Test Method for Granular Activated Carbon from Coal -
Determination of Particle Size
3 Terms and definitions
For the purpose of this Part of GB/T 7702, the following terms and definitions shall apply.
3.1
Ignition temperature
The instantaneous temperature of the activated carbon which gradually rises along the
temperature of heating air flow until the carbon catches fire suddenly, under the test
conditions specified.
4 Principle
Heat the specimen in the air flow according to certain temperature-rise rate; along the
temperature rises, the specimen temperature suddenly rises and exceeds the
f) Test personnel;
g) Date of test.
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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