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GB/T 24526-2009 English PDF

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GB/T 24526-2009: Carbon materials -- Determination of the total sulphur content
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PDF similar to GB/T 24526-2009


Standard similar to GB/T 24526-2009

GB/T 42670   GB/T 8719   GB/T 24525   GB/T 24527   

Basic data

Standard ID GB/T 24526-2009 (GB/T24526-2009)
Description (Translated English) Carbon materials -- Determination of the total sulphur content
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard Q52
Classification of International Standard 29.050
Word Count Estimation 8,863
Date of Issue 2009-10-30
Date of Implementation 2010-05-01
Quoted Standard GB/T 214; GB/T 601; GB/T 639; GB/T 649; GB/T 676; GB/T 1272; GB/T 1427; GB/T 1914; GB/T 1997; GB/T 8170; GB/T 24527
Regulation (derived from) National Standard Approval Announcement 2009 No.12 (Total No.152)
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 method of the principle of total sulfur content of carbon materials��ʿ��law and Coulomb law, reagents and materials, equipment, test procedures, results of calculation and precision, etc., in the arbitration analysis should be used Aldrin card method. This standard applies to the carbon material graphite electrodes, graphite broken, charcoal, graphite anode, carbon electrode, paste class, electric charcoal class, calcined anthracite, determination of total sulfur content of petroleum coke after forging.

GB/T 24526-2009: Carbon materials -- Determination of the total sulphur content

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Carbon materials. Determination of the total sulphur content ICS 29.050 Q52 National Standards of People's Republic of China Carbon materials - Determination of total sulfur content Posted 2009-10-30 2010-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

The standard proposed by China Iron and Steel Association. This standard is under the jurisdiction of the National Steel Standardization Technical Committee. This standard was drafted. Wuhan University of Science and Technology, Metallurgical Industry Information Standards Institute. The main drafters of this standard. Li Qixiang, Xu Zhen, Sun Wei, Xu Bin, Sun Yu, Wang Hairong, east ridge. Carbon materials - Determination of total sulfur content

1 Scope

This standard specifies the principle of the method Carbon materials total sulfur content of Ai Shika law and Coulomb's law, reagents and materials, equipment, test step Suddenly, the results of calculation and precision, etc., in the arbitration analysis should be used Eschka law. This standard applies to carbon materials graphite electrodes, graphite scrap, carbon block, graphite anodes, carbon electrode paste type, carbon-based electricity, calcined anthracite, calcined after Petroleum coke - Determination of total sulfur content.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. Determination of total sulfur in GB/T 214 coal Preparation of GB/T 601 chemical reagent standard titration solution GB/T 639 chemical reagent anhydrous sodium carbonate GB/T 649 chemical reagent potassium bromide GB/T 676 chemical reagent acetic acid (glacial acetic acid) GB/T 1272 chemical reagents potassium iodide GB/T 1427 carbon material sampling method GB/T 1914 chemical analysis filter paper GB/T 1997 Coke samples and preparation GB/T 8170 repair value expressed about the rules and limit values \u200b\u200band judgment Determination of GB/T 24527 Carbon materials inherent moisture

3 Ai Shika law

3.1 Principle Mixing the sample with carbon materials aldrin, burning at a certain temperature, the sample is oxidized to sulfur dioxide and sulfur trioxide, Oxides of sulfur and sodium carbonate and sulfate regenerated magnesium oxide effect, then added barium chloride solution and generated its barium sulfate precipitation, according to The quality of barium sulfate in the calculation of carbon materials total sulfur content. The main reaction is as follows. Sample O2 →  CO2 ↑ + H2O + SO2 ↑ + SO3 ↑ 3Na2CO3 + 2SO2 + SO3 + O2 (air) →  3Na2SO4 + 3CO2 ↑ 3MgO + 2SO2 + SO3 + O2 (air → ) 3MgSO4 MgSO4 + Na2SO4 + 2BaCl → 2 2BaSO4 ↓ + 2NaCl + MgCl2 3.2 Reagents and materials 3.2.1 Ai Shika reagent Ai Shika agent (hereinafter referred to as aldrin), weighed 2 parts by mass of chemically pure light magnesium oxide, and 1 part by mass of chemically pure anhydrous carbonate Sodium (GB/T 639) were mixed and finely ground to a particle size after less than 0.2mm, stored in a sample bottle with a ground port. 3.2.2 hydrochloric acid solution. (1 + 1), a volume of water added to 1 volume of hydrochloric acid (analytical grade) and mix. 3.2.3 barium chloride solution. 100g/L, 10g of barium chloride (analytical grade) were dissolved in 100mL water.

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