GB/T 223.29-2008 English PDFUS$139.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 223.29-2008: Iron, steel and alloy -- Determination of lead content -- Carrier precipitation-xylenol orange spectrophotometric method Status: Valid GB/T 223.29: Historical versions
Basic dataStandard ID: GB/T 223.29-2008 (GB/T223.29-2008)Description (Translated English): Iron, steel and alloy -- Determination of lead content -- Carrier precipitation-xylenol orange spectrophotometric method Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: H11 Classification of International Standard: 77.080.01 Word Count Estimation: 6,614 Date of Issue: 2008-05-13 Date of Implementation: 2008-11-01 Older Standard (superseded by this standard): GB/T 223.29-1984 Quoted Standard: GB/T 20066 Regulation (derived from): National Standard Approval Announcement 2008 No.8 (Total No.121)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 carrier precipitation-xylenol orange spectrophotometric spectrophotometric determination of lead content. This section applies to carbon steel, alloy steel, temperature alloys and precision determination of the mass fraction of the alloy 0. 0005% to 0. 25 % lead content. GB/T 223.29-2008: Iron, steel and alloy -- Determination of lead content -- Carrier precipitation-xylenol orange spectrophotometric method---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. Iron, steel and alloy. Determination of lead content. Carrier precipitation-xylenol orange spectrophotometric method ICS 77.080.01 H11 National Standards of People's Republic of China Replacing GB/T 223.29-1984 Determination of steel and alloy of lead content Carrier precipitation - xylenol orange spectrophotometric method 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 ForewordThis section GB/T 223 instead of GB/T 223.29-1984 "steel and alloy chemical analysis method carrier precipitation - xylenol orange light Determination of lead content "of the law. This portion of the GB/T 223.29-1984 compared primarily with the following modifications. --- Increased headline analysis of reagent water and help content and standard solution, standardized presentation of reagents, and modify the solution concentration Representation; --- Modified Weigh Sample volume represented; --- Modify the formula calculation results in an amount represented. This part is proposed by the China Iron and Steel Association. This part of the National Steel Standardization Technical Committee. This section is responsible for drafting units. China Iron and Steel Research Institute Group. The main drafters of this section. Yan Dong-xia, Ke Ruihua. This part of the standard replaces the previous editions are. GB/T 223.29-1984. Determination of steel and alloy of lead content Carrier precipitation - xylenol orange spectrophotometric method Warning. Use of this section shall be a person experiences regular laboratory work. This section does not indicate that all possible security issues. Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.1 ScopeGB/T 223 provisions of this part of the carrier precipitation - xylenol orange spectrophotometric determination of lead content. This section applies to carbon steel, alloy steel, high temperature alloys and precision alloys for the determination of the mass fraction of 0.0005% to 0.25% lead content.2 Normative referencesThe following documents contain provisions which, through reference GB/T 223 of this text, constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. Sample for sampling and sample preparation method GB/T 20066 Determination of the chemical composition of steel and iron Principle 3 In sulfuric acid medium, with strontium as the lead carrier precipitation with potassium carbonate conversion of sulphate, dissolved in hydrochloric acid. At pH (5.2 to 5.5), the lead and XO generated orange-red complex, measuring the absorbance. Color liquid, the cobalt content is less than 3μg, nickel content, iron content, molybdenum content of each is less than 5μg, tin content, the manganese content of each is less than 10μg, vanadium Content, aluminum content of less than 15 ug each, less than 20 ug chromium content, titanium content of less than 24 g, the content of tungsten, copper content, silicon content, the arsenic content of the small To 30μg, zinc content of less than 50μg, calcium content and magnesium content of each is less than 300μg, the sodium content of less than 3mg, potassium content of less than 5mg, on the determination no effect. Antimony due to hydrolysis, so that the color was muddy affect the determination.4 ReagentsUnless otherwise indicated in the analysis use only reagents of recognized analytical grade and distilled water or equivalent purity. 4.1 hydrochloric acid, ρ about 1.19g/mL, pure class distinctions. 4.2 hydrochloric acid, ρ about 1.19g/mL, pure class distinctions, diluted 1 + 1. 4.3 hydrochloric acid, ρ about 1.19g/mL, pure class distinctions, diluted 1 + 10. 4.4 hydrochloric acid, ρ about 1.19g/mL, pure class distinctions, diluted to 5 + 95. 4.5 nitric acid, ρ about 1.42g/mL, pure class distinctions. 4.6 sulfuric acid, ρ about 1.84g/mL, pure class distinctions. 4.7 sulfuric acid, ρ about 1.84g/mL, pure class distinctions, diluted 1 + 100. 4.8 phosphoric acid, ρ about 1.70g/mL, pure class distinctions. 4.9 ammonia, ρ about 0.90g/mL, pure class distinctions. 4.10 ammonia, ρ about 0.90g/mL, pure class distinctions, diluted 1 + 10. 4.11 strontium chloride solution, 15g/L. Weigh 3g strontium chloride (SrCl2 · 6H2O) was dissolved in water and diluted to 200mL, and mix. 4.12 potassium carbonate (excellent pure) solution, 100g/L. 4.13 potassium carbonate (excellent pure) solution, 10g/L. ...... |
