GB/T 3074.3-2008 English PDF

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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: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 3074.3-2008	139	Add to Cart	3 days	Method for the determination of the oxidation resistance of graphite electrodes	Valid
GB/T 3074.3-1982	199	Add to Cart	2 days	Method for determination of the oxidation resistance of graphite electrodes	Obsolete

Similar standards

GB/T 3518   GB/T 3521   GB/T 24533   GB/T 3520   GB/T 3074.2   GB/T 3074.1   

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Older Standard (superseded by this standard): GB/T 3074.3-1982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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