YS/T 34.3-2011 English PDFUS$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. YS/T 34.3-2011: Method for chemical analysis of the high-purity arsenic. Predicating method for determinating the concentration of sulfur Status: Valid YS/T 34.3: Historical versions
Basic dataStandard ID: YS/T 34.3-2011 (YS/T34.3-2011)Description (Translated English): Method for chemical analysis of the high-purity arsenic. Predicating method for determinating the concentration of sulfur Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended) Classification of Chinese Standard: H17 Classification of International Standard: 77.040.30 Word Count Estimation: 7,764 Date of Issue: 2011-12-20 Date of Implementation: 2012-07-01 Older Standard (superseded by this standard): YS/T 34.4-1992 Regulation (derived from): ?MIIT Announcement 2011 No.43 Issuing agency(ies): Ministry of Industry and Information Technology Summary: This standard specifies the method for the determination of arsenic in high purity sulfur content. This standard applies to arsenic (99. 999%) determination of sulfur content. Measuring range: ~ 0. 00015% 0. 00003%. YS/T 34.3-2011: Method for chemical analysis of the high-purity arsenic. Predicating method for determinating the concentration of sulfur---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 chemical analysis of the high-purity arsenic.Predicating method for determinating the concentration of sulfur ICS 77.040.30 H17 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 34.4-1992 Methods for chemical analysis of high-purity arsenic Polarographic determination of sulfur content Issued on. 2011-12-20 2012-07-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released ForewordYS/T 34 "high-purity arsenic chemical analysis method" consists of three parts. --- Part 1. Methods for chemical analysis of high-purity arsenic by inductively coupled plasma mass spectrometry (ICP-MS) Determination of impurities in high-purity arsenic content; --- Part 2. Determination of the amount of high-purity arsenic and selenium chemical analysis of polarography; --- Part 3. Determination of the amount of high-purity arsenic and sulfur chemical analysis of polarography. This section is YS/T Part 3 34. The partial replacement of YS/T 34.4-1992 "determination of sulfur high-purity arsenic chemical analysis of polarography." This section according to GB/T 1.1-2009. the preparation of "Standardization Guide Part 1 standard structure and writing" requirement. The non-ferrous metal part by the National Standardization Technical Committee. This section is responsible for drafting unit. Emei Semiconductor Material Factory. The main drafters of this section. Cheng Gaoming, Tangyun Bo. This part of the standard replaces the previous editions are. --- YS/T 34.4-1992. Methods for chemical analysis of high-purity arsenic Polarographic determination of sulfur content1 ScopeYS/T of the provisions of section 34 of the method for the determination of arsenic in high purity sulfur content. This section applies to the determination of arsenic (99.999%) sulfur content. Measurement range 0.00003% 0.00015%.2 Method summarySamples with hydrochloric acid - nitric acid dissolved, evaporated to dryness. Join hydrobromide, 120 ℃ heating volatile arsenic removal. Hydrochloric acid, hydroiodic acid, mixed sodium hypophosphite Was reducing sulfur impurities to produce hydrogen sulfide. -EDTA Absorb sodium hydroxide solution, oscillopolarographic determination.3 reagent standard solution3.1 deionized water (resistivity greater than 15MΩ · cm). 3.2 HCl. 1000mL high purity hydrochloric acid (ρ1.19g/mL), was added 0.4g two barium chloride, after sub-boiling distillation of use. Nitrate 3.3. 1000mL high purity nitric acid (ρ1.42g/mL), 0.4g of barium nitrate was added, after azeotropic distillation using ethylene. 3.4 hydrobromide. 500mL high purity hydrobromic acid (40%), placed in the reflux flask, 20g sodium hypophosphite (NaH2PO3 · H2O), to 2L/min ~ 3L/min of pure argon a rate of (3.10), the solution was heated, kept boiling, the reflux 4h. Back distillate further sub-boiling distillation, abandoned Head to 150mL distillate collecting 250mL fractions spare. Hydrobromide concentration should not be less than 8.4mol/L. -EDTA 3.5 Sodium hydroxide absorption solution. Pipette 40.0mL ~ 45.0mL high purity sodium hydroxide solution (40%), 5.0mLEDTA Solution (0.5mol/L), placed in 500mL volumetric flask, dilute to the mark, mix and transferred to a polyethylene bottle save. This hydroxide solution Sodium concentration and the concentration of EDTA were 1mol/L, 0.01mol/L. Note. Commercially available high-purity sodium hydroxide solution (40%) after calibration use. 3.6 reducing agent (Ⅰ). Pipette 400mL hydroiodic acid (45%), 210mL of hydrochloric acid (ρ1.19g/mL), 120g sodium hypophosphite into the reflux Bottle with 2L/min of pure argon a rate of (3.10), maintained at boiling heat (approximately 114 deg.] C), the reflux 5h. Cooling to room temperature, transferred to a quartz flask, Store in a cool place (effectively a half months). Boiling water bath heated to dissolve salt use. 3.7 reducing agent (Ⅱ). Pipette 250mL hydroiodic acid (45%), 60mL acetic acid, 50g sodium hypophosphite, placed in the reflux flask, to 2L/min of pure argon through rate (3.10), heated and maintained boiling (about 118 ℃), the reflux 4h, stored in a cool place (within a half months valid). 3.8 sodium sulfate solution. Accurately weigh 4.431g sodium (105 ℃ after drying), placed 1000mL volumetric flask, add 50mL salt Acid (ρ1.19g/mL), sodium sulfate dissolved, diluted with water to volume, and mix. This solution 1mL 1mg containing sulfur. 3.9 sulfur standard solution. accurate Pipette 1.0mL sodium sulfate solution (3.8), placed 1000mL volumetric flask, dilute to the mark with water, mix uniform. This solution 1mL containing 1μg sulfur. 3.10 pure argon or nitrogen. > 99.9%. 4-volatile devices and instruments 4.1 oscilloscope Polarograph Scanning voltage range 0V ~ 2V. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of YS/T 34.3-2011_English be delivered?Answer: Upon your order, we will start to translate YS/T 34.3-2011_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. 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