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GB/T 3074.3-2008: Method for the determination of the oxidation resistance of graphite electrodes
Status: Valid GB/T 3074.3: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 3074.3-2008 | English | 139 |
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Method for the determination of the oxidation resistance of graphite electrodes
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GB/T 3074.3-2008
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| GB/T 3074.3-1982 | English | 199 |
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Method for determination of the oxidation resistance of graphite electrodes
| Obsolete |
GB/T 3074.3-1982
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Basic data | Standard ID | GB/T 3074.3-2008 (GB/T3074.3-2008) | | Description (Translated English) | Method for the determination of the oxidation resistance of graphite electrodes | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q51 | | Classification of International Standard | 29.050 | | Word Count Estimation | 6,660 | | Date of Issue | 2008-05-13 | | Date of Implementation | 2008-11-01 | | Older Standard (superseded by this standard) | GB/T 3074.3-1982 | | Quoted Standard | GB/T 1427; GB/T 8170 | | Regulation (derived from) | National Standard Approval Announcement 2008 No.8 (Total No.121) | | 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 the determination of the oxidation of graphite electrodes, equipment, specimen preparation, test procedures and results of calculations. This section applies to the determination of the oxidation of graphite electrodes. | GB/T 3074.3-2008: Method for the determination of the oxidation resistance of graphite electrodes---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Method for the determination of the oxidation resistance of graphite electrodes
ICS 29.050
Q51
National Standards of People's Republic of China
Replacing GB/T 3074.3-1982
Determination of oxidizing graphite electrodes
Posted 2008-05-13
2008-11-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 3074 "Determination of graphite electrodes" is divided into five sections.
--- Determination of flexural strength of graphite electrodes;
--- Elastic modulus of graphite electrodes measuring method;
--- Oxidation of graphite electrodes measuring method;
--- Graphite electrodes coefficient of thermal expansion (CTE) determination;
--- Determination of preparing a graphite electrode petroleum coke thermal expansion coefficient of the sample.
This section GB/T 33074 Part of.
This Part replaces GB/T 3074.3-1982 "method of measuring the oxidation of graphite electrodes."
This section compared with the GB/T 3074.3-1982, the main changes are as follows.
--- Original equipment to the electro-optic analytical balance analytical balance, weighing range 200g, a sense of the amount of 0.1mg;
--- Original equipment in civil hair blower function to ensure a flow rate of 2L/min;
--- 26 × 50mm original sample size to 25 × 50mm;
--- The amount of the original sample batch to test four samples of each batch of test two samples;
--- Canceled the step of step with an alcohol wipe samples and measuring specific gravity;
--- The weight recorded once every half hour instead of every hour recorded the temperature, air flow rate and the quality of the sample;
--- Increased oxidative measuring device Fig.
This part is proposed by the China Iron and Steel Association.
This section is under the jurisdiction of Metallurgical Industry Information Standards Institute.
This section is drafted. Sinosteel Jilin Carbon Co., Ltd.
This section drafters. Zhang West powder, Sun Quan, He Jing far.
This section was first released in 1982.
Determination of oxidizing graphite electrodes
1 Scope
This section sets out the principles for the determination of the oxidation of graphite electrodes, equipment, specimen preparation, test procedures and results of calculations.
This section applies to the determination of the oxidation of graphite electrodes.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this part. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this section, however, encourage the parties to this part of the research agreement
Whether the latest versions of these documents, undated reference documents, the latest versions apply to this section.
GB/T 1427 carbon material sampling method
GB/T 8170 numerical rounding rules
Principle 3
Oxidizing graphite sample at a temperature of 650 ℃ pass into the air, the number of milligrams per gram of sample oxidation loss per hour.
4 Equipment
4.1 Analysis of balance. weighing range 200g, a sense of the amount of 0.1mg.
4.2 furnace. the temperature can reach 650 ℃ or more.
4.3 quartz tube. diameter 64mm, inner diameter of 56mm, length 900mm.
4.4 Automatic temperature control device. temperature control ± 2 ℃.
4.5 Gas Flow Meter. 0L/min ~ 5L/min.
4.6 Blower. air volume can reach 2L/min.
4.7 Nitrogen. more than 99.99% purity.
4.8 platinum wire. 0.3mm.
4.9 Oven. room temperature ~ 200 ℃.
4.10 oxidative measuring device (see FIG. 1).
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