YS/T 568.3-2008 English PDFUS$169.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. YS/T 568.3-2008: Chemical analysis methods for zirconium oxide and hafnium oxide. Determination of silicon content. Spectrophotometric method with the reduced silicomolybdic comples Status: Valid YS/T 568.3: Historical versions
Basic dataStandard ID: YS/T 568.3-2008 (YS/T568.3-2008)Description (Translated English): Chemical analysis methods for zirconium oxide and hafnium oxide. Determination of silicon content. Spectrophotometric method with the reduced silicomolybdic comples Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended) Classification of Chinese Standard: H63 Classification of International Standard: 77.120.99 Word Count Estimation: 6,651 Date of Issue: 2008-03-12 Date of Implementation: 2008-09-01 Older Standard (superseded by this standard): YS/T 568.3-2006 Regulation (derived from): NDRC Notice No. 25 of 2008 Issuing agency(ies): National Development and Reform Commission Summary: This standard specifies the hafnium oxide, zirconium oxide and silicon content determination. This standard applies to zirconium oxide and hafnium oxide of silicon content. Measuring range: 0. 005% ~ 0. 7%. YS/T 568.3-2008: Chemical analysis methods for zirconium oxide and hafnium oxide. Determination of silicon content. Spectrophotometric method with the reduced silicomolybdic comples---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. Chemical analysis methods for zirconium oxide and hafnium oxide.Determination of silicon content.Spectrophotometric method with the reduced silicomolybdic comples ICS 77.120.99 H63 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 568.3-2006 Zirconium oxide, hafnium oxide chemical analysis Determination of silicon content Molybdenum blue spectrophotometric method Posted 2008-03-12 2008-09-01 implementation National Development and Reform Commission issued ForewordYS/T 568 "zirconium, hafnium oxide chemical analysis method" is divided into 11 parts. --- Part 1. Determination of zirconium oxide and hafnium content of mandelic acid gravimetric method; --- Part 2. Determination of iron content sulfonic acid spectrophotometry; --- Part 3. Determination of silicon content - Molybdenum blue spectrophotometric method; --- Part 4. Determination of aluminum content of chromium azure S- cylpyridinium chloride spectrophotometry; --- Part 5. Determination of sodium content by flame atomic absorption spectrometry; --- Part 6. Determination of the amount of titanium di Zhao DAM spectrophotometry; --- Division 7. Determination of phosphorus content of antimony salt - ascorbic acid - phosphorus molybdenum blue spectrophotometric method; --- Division 8. zirconia aluminum, calcium, magnesium, manganese, sodium, nickel, iron, titanium, zinc, molybdenum, vanadium, hafnium content - Inductively coupled plasma fat Emission spectrometry; --- Part 9. hafnium oxide of aluminum, calcium, magnesium, manganese, sodium, nickel, iron, titanium, zinc, molybdenum, vanadium, zirconium content - Inductively coupled plasma fat Emission spectrometry; --- Part 10. Determination of manganese content - Potassium periodate spectrophotometric method; --- Part 11. Determination of α- linked furoylhydrazone nickel dioxime spectrophotometric method. This is Part 3. The partial replacement of YS/T 568.3-2006 "zirconium oxide, hafnium silicon content determination" (formerly GB/T 2590.3-1981). This portion of YS/T 568.3-2006 compared to the main changes are as follows. --- Added "7.1 repeatability" clause. --- Added "8 Quality assurance and control" clause. The non-ferrous metal part by the National Standardization Technical Committee and centralized. This part by the Beijing Nonferrous Metal Research Institute, China Nonferrous Metals Industry Institute of Standards Metrology and Quality is responsible for drafting. This section was drafted by the Beijing Nonferrous Metal Research Institute. The main drafters of this section. Zhuo Tong Jian, Hu Zhenping. This part of the standard replaces the previous editions are. --- GB/T 2590.3-1981, YS/T 568.3-2006. Zirconium oxide, hafnium oxide chemical analysis Determination of silicon content Molybdenum blue spectrophotometric method1 ScopeThis section specifies the determination method zirconia and hafnium silicon content. This section applies to the determination of zirconium oxide and hafnium oxide and silicon content. Measurement range. 0.005% to 0.7%.2 Method summaryHydrofluoric acid in a high pressure sample Sample Dissolution apparatus dissolved, boric acid, ammonium molybdate after the solution was adjusted to pH 1 to 1.5, silicon to form a silicon Molybdenum yellow, adding citric acid to eliminate phosphorus, arsenic interference with a 1-2-4 silicon molybdenum yellow acid is reduced to silicon molybdenum blue at 700nm wavelength spectrophotometer at Measuring the absorbance.3 Reagents3.1 boric acid, pure class distinctions. 3.2 hydrofluoric acid (ρ1.15g/mL), pure class distinctions. 3.3 Ammonia (ρ0.90g/mL), pure class distinctions. 3.4 sulfate (ρ1.84g/mL), pure class distinctions. 3.5 ammonium molybdate solution (100g/L), pure class distinctions. 3.6 citric acid solution (200g/L), pure class distinctions. 3.7 amino-2-naphthol-4-sulfonic acid solution (1-2-4 acid). Weigh 0.05g1-2-4 acid, dissolved 100mL100g/L sodium sulfite solution The time is now equipped with. 3.8 silicon standard stock solution. Weigh 2.1393g pure silica [(Si) > 99.9%], placed in a platinum crucible, sodium carbonate and potassium carbonate was added 10g of melt mixing Agent (2 + 1), mix well, on the torch to melt the crucible contents completely melted, continue to melt 10min. Cooling, leaching with hot water, heated to dissolve Liquid clarification. Cooling water moved into 1000mL volumetric flask, and dilute to the mark. Store in a polyethylene bottle. This solution 1mL Silicon-containing 1mg. 3.9 Silicon standard solution. Pipette 25.00mL silicon standard stock solution (3.8), placed in 250mL volumetric flask, dilute to the mark, shake uniform. Store in a polyethylene bottle. This solution 1mL containing 100μg silicon.4 InstrumentSpectrophotometer; High pressure sample dissolution apparatus. Step 5 Analysis 5.1 Sample Table 1 sample was weighed, accurate to 0.0001g. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of YS/T 568.3-2008_English be delivered?Answer: Upon your order, we will start to translate YS/T 568.3-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of YS/T 568.3-2008_English with my colleagues?Answer: Yes. The purchased PDF of YS/T 568.3-2008_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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