GB/T 1427-2016 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 1427-2016 | English | 150 |
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Sample method of carbon material
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| GB/T 1427-2000 | English | 279 |
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Sample method of carbon material
| Obsolete |
| GB/T 1427-1988 | English | RFQ |
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Method for the sample of carbonaceous materials
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Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: GB/T 1427-2016
GB/T 1427-2016: Sample method of carbon material---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT1427-2016
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 29.050
Q 50
Replacing GB/T 1427-2000
Sample method of carbon material
Issued on. JUNE 14, 2016
Implemented on. MAY 01, 2017
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... 4
1 Scope... 6
2 Normative references... 6
3 Graphite electrodes and joints (including general power, impregnation, high
power, ultra-high power), graphite electrode roasting products... 6
4 Graphite anodes... 7
5 Graphite blocks... 8
6 Cathode carbon blocks for aluminum electrolysis cells... 9
7 Carbon electrodes... 10
8 Electric furnace carbon blocks, self-baking carbon blocks, blast furnace
carbon blocks... 10
9 Carbon resistance rods... 11
10 Carbon paste (electrode paste, anode paste, cathode paste, carbon
ramming materials)... 12
11 Carbon cement, carbon mud... 12
12 High purity graphite products... 13
13 Isostatic graphite... 13
14 Carbon substrates for solar power generation... 14
15 Fine-particle high-density special graphite products... 14
16 Mesophase carbon microspheres, soft carbon, hard carbon... 15
17 Spherical graphite... 16
18 Graphite anode materials, carbon composite lithium iron phosphate cathode
materials, lithium titanate and carbon composite anode materials, etc... 16
19 Other specifications... 17
Foreword
This Standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard replaces GB/T 1427-2000 “Sample method of carbon material”.
Compared with GB/T 1427-2000, the main technical content changes of this
Standard are as follows.
- ADD the normative references (see Clause 2);
- MODIFY the sampling requirements for graphite electrodes and joints (see
3.2, 3.3, 3.4);
- MODIFY the sampling requirements for graphite blocks (see 5.2);
- MODIFY the sampling requirements for cathode carbon blocks for
aluminum electrolysis cells (see 6.1, 6.2, 6.3, 6.4);
- MODIFY the sampling requirements for electric furnace carbon blocks, self-
baking carbon blocks and blast furnace carbon blocks (see 8.1, 8.3, 8.4);
- MODIFY the sampling batch requirements for carbon resistance rods (see
9.1);
- MODIFY the type and the sampling batch requirements for charcoal paste
(see Clause 10);
- ADD the sampling requirements for carbon cement and carbon mud (see
Clause 11);
- ADD the sampling requirements for isostatic graphite (see Clause 13);
- ADD the sampling requirements for carbon substrates for solar power
generation (see Clause 14);
- ADD the sampling requirements for fine-particle high-density special
graphite products (see Clause 15);
- ADD the sampling requirements for mesophase carbon microspheres, soft
carbon, hard carbon (see Clause 16);
- ADD the sampling requirements for spherical graphite (see Clause 17);
- ADD the sampling requirements for graphite anode materials, carbon
composite lithium iron phosphate cathode materials, lithium titanate and
carbon composite anode materials (see Clause 18);
- ADD the sample storage requirements (see 19.3).
This Standard was proposed by China Iron and Steel Industry Association.
This Standard shall be under the jurisdiction of National Technical Committee
on Steel of Standardization Administration of China (SAC/TC 183).
Drafting organizations of this Standard. China Pingmei Shenma Group Kaifeng
Carbon Co., Ltd., Shanghai Shanshan Technology Co., Ltd., Zhanjiang Juxin
New Energy Co., Ltd., Ningxia Ningping Carbon Co., Ltd., China Metallurgical
Information and Standardization Institute.
Main drafters of this Standard. Liu Yunping, Zheng Jianhua, Qiao Yongmin, Du
Huiyu, Wu Qixiu, Cao Peifeng, Zheng Jingxu, Feng Junjie, Lu Hongbing, Ding
Xiaoyang, Zhang Yongbin.
The previous released versions replaced by this Standard are as follows.
- GB/T 1427-1988, GB/T 1427-2000.
Sample method of carbon material
1 Scope
This Standard specifies the sampling tool, sampling position, sampling quantity
and specimen size and precision of carbon materials.
This Standard is applicable to the taking and preparation of carbon material
samples such as graphite electrodes, graphite anodes, graphite blocks,
cathode carbon blocks, carbon electrodes, electric furnace carbon blocks,
carbon paste, high-purity graphite products, mesophase carbon microspheres.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB/T 13732 General rules for sampling inspection of bulk materials with
uniform size
3 Graphite electrodes and joints (including general
power, impregnation, high power, ultra-high power),
graphite electrode roasting products
3.1 Sampling batch
If the output of graphitized products per furnace is greater than or equal to 30 t,
the quantity of sampling electrodes is not less than 4 pieces. If it is less than 30
t, the quantity of sampling electrodes is not less than 3 pieces.
3.2 Sampling tool
Hollow drill bits with an inner diameter of not less than 35 mm and a length of
250 mm, or other tools that guarantee the requirements of the specimen.
3.3 Sampling position and method
3.4 Specimen size and precision
3.4.1 Electrodes with a diameter of 550 mm and above are processed into not
less than 4 specimens with a size of φ(30 ± 0.1) mm × (180 ± 0.1) mm, which
are used to measure the volume density, elastic modulus, resistivity and flexural
strength.
4 Graphite anodes
4.1 Sampling batch
The products to be loaded into the same graphitization furnace are regarded
as one batch. The sampling quantity of each batch shall not be less than one
thousandth of the quantity of loaded blocks, but each batch shall have not less
than 10 specimens.
4.2 Sampling tool
Hollow drill bits with an inner diameter of 60 mm and a length of 150 mm or
other tools.
4.3 Sampling position and method
4.4 Specimen size and precision
4.4.1 Products of which the diameter or cross-section thickness of the anode is
greater than or equal to 50 mm are processed into 4 ~ 6 specimens with a size
of φ(40 ± 0.1) mm × (40 ± 0.1) mm × (40 ± 0.1) mm or φ(45 ± 0.1) mm × (40 ±
0.1) mm, of which the pressurized surface is indicated, and the pressurization
direction shall be parallel to the extrusion direction. In addition, it is processed
into 4 ~ 6 specimens of φ(10 ± 0.1) mm × (120 ± 0.1) mm for measuring the
flexural strength.
5 Graphite blocks
5.1 Sampling batch
If the output of each furnace is greater than or equal to 30 t, the sampling
quantity is not less than 4 pieces. If it is less than 30 t, the sampling quantity is
not less than 3 pieces.
5.2 Sampling tool
Hollow drill bits with an inner diameter of not less than 65 mm and a length of
not less than 150 mm or other tools.
5.4 Specimen size and precision
The cylinders are processed into specimens of (40 ± 0.1) mm × (40 ± 0.1) mm
× (40 ± 0.1) mm or φ(45 ± 0.1) mm × (40 ± 0.1) mm.
5.5 Sample appearance
The corners are intact and there are no visible cracks or flaws.
6 Cathode carbon blocks for aluminum electrolysis cells
6.1 Sampling batch
Every 100 t is one batch. Those less than 100 t are regarded as 100 t. The
sampling quantity per batch is not less than 3 pieces. 2 cylinders are drilled in
each block.
6.2 Sampling tool
Hollow drill bits with an inner diameter of not less than 65 mm and a length of
not less than 150 mm or other tools.
6.4 Specimen size and precision
The size and precision of the specimen shall be determined in accordance with
the requirements of the tested item. However, the minimum size (usually the
diameter) of the specimen is at least 3 times the maximum particle size of the
dry aggregate.
6.5 Sample appearance
The corners are intact and there are no visible cracks or flaws.
7 Carbon electrodes
7.1 Sampling batch
Every 100 t is one batch. Those less than 100 t are regarded as 100 t. The
sampling quantity per batch is not less than 3 blocks (pieces).
7.2 Sampling tool
Hollow drill bits with an inner diameter of 65 mm and a length of not less than
150 mm or other tools.
7.4 Specimen size and precision
The cylinders are processed into specimens of (40 ± 0.1) mm × (40 ± 0.1) mm
× (40 ± 0.1) mm or φ(45 ± 0.1) mm × (40 ± 0.1) mm.
7.5 Sample appearance
The corners are intact and there are no visible cracks or flaws.
8 Electric furnace carbon blocks, self-baking carbon blocks, blast furnace carbon blocks
8.1 Sampling batch
Every 100 t is one batch. Those less than 100 t are regarded as 100 t. The
sampling quantity per batch is not less than 2 blocks.
8.3 Sampling position and method
8.3.1 USE a hollow drill bit to drill cylinders with a length of not less than 110
mm along the longitudinal direction, at upper, middle and lower sections of the
working surface (iron-water pressure-receiving surface) when the product is
used.
8.4 Specimen size and precision
8.4.1 The cylinders are processed into specimens of φ(45 ± 0.1) mm × (40 ±
0.1) mm. There are not less than 6 pieces per batch. It shall indicate the
pressurization direction, and make the pressurization direction parallel to the
pressure direction when the product is used.
8.5 Sample appearance
The corners are intact and there are no visible cracks or flaws.
9 Carbon resistance rods
9.1 Sampling batch
20 t ~ 50 t is one batch. The sampling quantity per batch is 4 pieces
(respectively 2 pieces in the upper and lower layers of the roasting chamber).
9.2 Sampling tool
Saws or machine tools.
9.5 Sample appearance
The corners are intact and there are no visible cracks or flaws.
10 Carbon paste (electrode paste, anode paste,
cathode paste, carbon ramming materials)
10.1 Sampling batch
For electrode paste, anode paste and cathode paste, every 500 t is one batch,
and those less than 500 t are regarded as 500 t. For carbon ramming materials,
every 100 t is one batch, and those less than 100 t are regarded as 100 t.
10.2 Specimen preparation
The number of subsamples sampled from each batch of carbon paste shall not
be less than 3, and each subsample shall not be less than 5 kg.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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