GB/T 10304-2008 English PDF

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GB/T 10304-2008: Analytical method of cathode carbonate
Status: Valid

GB/T 10304: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 10304-2008	299	Add to Cart	3 days	Analytical method of cathode carbonate	Valid
GB/T 10304.1-1988	199	Add to Cart	2 days	General rule for analytical method of cathode carbonate	Obsolete

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Basic data

Standard ID: GB/T 10304-2008 (GB/T10304-2008)
Description (Translated English): Analytical method of cathode carbonate
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G85
Classification of International Standard: 71.040.40
Word Count Estimation: 13,151
Date of Issue: 2008-07-02
Date of Implementation: 2009-02-01
Older Standard (superseded by this standard): GB/T 10304.1-1988; GB/T 10304.2-1988; GB/T 10304.3-1988; GB/T 10304.4-1988; GB/T 10304.5-1988; GB/T 10304.6-1988; GB/T 10304.7-1988; GB/T 10304.8-1988; GB/T 10304.9-1988; GB/T 10304.10-1988; GB/T 10304.11-1988; GB/T 10304.12-1988
Quoted Standard: GB/T 10306-1988
Regulation (derived from): National Standard Approval Announcement 2008 No.11 (Total No.124)
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 analysis of the cathode component content of carbonates. Its analysis projects barium, strontium carbonate, calcium carbonate, nitrates, soluble substance (Na), total sodium, hydrochloric acid insoluble matter, iron, chloride, sulfate, heavy metals (Pb) and loss on ignition (300��C). This standard applies to various grades of cathode carbonate.

GB/T 10304-2008: Analytical method of cathode carbonate

---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.
Analytical method of cathode carbonate ICS 71.040.40 G85 National Standards of People's Republic of China Replacing GB/T 10304.1 ~ 10304.12-1988 Analysis cathode carbonate Posted 2008-07-02 2009-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard replaces GB/T 10304.1-1988 "General analysis of cathode carbonate", GB/T 10304.2-1988 "cathode carbonate Determination of barium content - potassium iodometric titration method ", GB/T 10304.3-1988" calcium carbonate in cathode carbonate complexation Titration ", GB/T 10304.4-1988" cathode carbonate calcium carbonate, strontium atomic absorption spectrophotometry " GB/T 10304.5-1988 "Determination of nitrate in cathode carbonate", GB/T 10304.6-1988 "cathode sodium carbonate atomic absorption Close spectrophotometric ", GB/T 10304.7-1988" Determination of acid in cathode carbonate insolubles ", GB/T 10304.8-1988" Yin Determination of iron carbonate pole ", GB/T 10304.9-1988" Determination of chlorine in cathode carbonate roots ", GB/T 10304.10-1988" Yin Pole carbonate Determination of sulfate radical ", GB/T 10304.11-1988" cathode carbonates of heavy metals (Pb) Determination " GB/T 10304.12-1988 "cathode carbonate ignition loss determination." The standard integrated and adjusted the GB/T 10304.1 ~ 10304.12-1988 applicable content, and GB/T 10304.1 ~ 10304.12-1988 compared to the main changes are as follows. --- According to GB/T 1.1-2000 and GB/T 1.2-2002, rearrange the contents of the standard; --- Added "foreword"; --- Added "normative references"; --- The "method Points" unified described as "principle"; --- Increased thiosulfate preparation and calibration method in the determination of barium carbonate in cathode carbonate content in; --- Calcium carbonate, strontium carbonate content of calcium carbonate in the determination of Determination and cathode carbonate in cathode carbonate "in accordance with the sample Preparation of standard grades Series "is changed to" in accordance with the expected sample grades (see GB/T 10306-1988) formulated standard series "; --- In the determination of nitrate in cathode carbonate, and removed a redox titration. Please note that some of the content of this standard may involve patents. The standard release mechanism should not bear the responsibility to identify these patents. The standard proposed by China Machinery Industry Federation. The standard measurement and control of the instruments Standardization Technical Committee Technical Committee under the jurisdiction of the national industrial processes. This standard is drafted by. non-ferrous metals and electronic materials analysis and testing center, Beijing Analytical Instrument Institute. The main drafters. Zhang Zheng Yongnian, Maya Juan. This standard superseded standard previously issued as follows. --- GB/T 10304.1 ~ 10304.12-1988. Analysis cathode carbonate

1 Scope

This standard specifies the method of analysis of the cathode component content of carbonates, which analyzes projects barium strontium carbonate, calcium carbonate, nitrate, Water soluble matter (Na), the total amount of sodium, hydrochloric acid insoluble matter, iron, chloride, sulfate, heavy metals (Pb) and loss on ignition (300 ℃). This standard applies to various brands of cathode carbonate.

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. GB/T 10306-1988 cathode carbonate

3 General

Analytical balance scale value 3.1 should be used 0.1mg; weighing should be accurate to 0.2mg. 3.2 Test distilled water (electric conductivity is preferably not more than 2μS/cm). 3.3 Analysis of the reagents, except for specified levels, they were of analytical grade. 3.4 Analysis of the solution, unless otherwise indicated solvents, are the solution. 3.5 The method of so-called "constant weight" means the difference between two consecutive weighing not more than 0.2mg, cooling time should be the same every time. 3.6 standard solution concentration should be retained four significant figures. 3.7 The balance weights and capacity containers, etc., should be corrected periodically. 3.8 sample dissolution, the solution was concentrated and toxic reagent evaporation operation should be carried out in a fume hood. 4 Determination of barium carbonate in cathode carbonate content --- iodometric titration with potassium dichromate 4.1 Applicability This method is suitable for analyzing barium content of more than 30% of cathode carbonate. 4.2 Principle The sample is dissolved in nitric acid, in the presence of acetic acid and ammonium acetate, ammonium dichromate to make a precipitate barium, potassium iodide and then with an excess of dichromate Ammonium and generated iodine, using starch as indicator, titrated with sodium thiosulfate standard solution of free iodine, according to the consumption of standard solution of sodium thiosulfate Calculation of the sample barium carbonate content. 4.3 Reagents 4.3.1 nitric acid (1 + 1). 4.3.2 ammonia. 4.3.3 acetic acid (99%). 4.3.4 ammonium acetate solution (300g/L). 4.3.5 ammonium dichromate (200g/L). 4.3.6 hydrochloric acid (3 + 7). 4.3.7 Potassium iodide. 4.3.8 starch solution (10g/L). 4.3.9 Sodium chloride - hydrochloric acid mixed solution. Configuration 1000mL saturated solution of sodium chloride, hydrochloric acid was added 100mL and 100mL of water, and mix. ......

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