YS/T 539.3-2024 English PDFYS/T 539.3: Historical versions
Basic dataStandard ID: YS/T 539.3-2024 (YS/T539.3-2024)Description (Translated English): (Chemical analysis method for nickel-based alloy powder - Part 3: Determination of silicon content - Molybdenum blue spectrophotometry) Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended) Classification of Chinese Standard: H16 Classification of International Standard: 77.16 Date of Issue: 2024-10-24 Date of Implementation: 2025-05-01 Older Standard (superseded by this standard): YS/T 539.3-2009 Issuing agency(ies): Ministry of Industry and Information Technology Summary: This standard specifies the method for determining the silicon content in nickel-based alloy powder by molybdenum blue spectrophotometry. This standard is applicable to the determination of silicon content in nickel-based alloy powder, and the determination range is 0.010% to 6.00%. YS/T 539.3-2009: Methods for chemical analysis of nickel base alloy powder. Part 3: Determination of silicon content. Perchloric acid dehydration gravimetric analysis---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. Methods for chemical analysis of nickel base alloy powder.Part 3. Determination of silicon content.Perchloric acid dehydration gravimetric analysis ICS 77.120.40 H71 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 539.3-2006 Nickel-based alloy powder chemical analysis Part 3. Determination of the amount of silicon Perchloric acid dehydration gravimetric method Posted 2009-12-04 2010-06-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released ForewordYS/T 539 "nickel-based alloy powder chemical analysis method" is divided into 13 parts. --- Part 1. Determination of the amount of boron acid-base titration; --- Part 2. Determination of the amount of chrome aluminum Azure S Spectrophotometry; --- Part 3. Determination of silicon content of perchloric acid dehydration gravimetric method; --- Part 4. Determination of chromium content of ammonium persulfate oxidation titration; --- Part 5. Determination of manganese content of sodium periodate (K) oxidation spectrophotometry; --- Part 6. Determination of iron content of titanium trichloride - potassium dichromate titration; --- Part 7. Determination of cobalt content nitroso R salt spectrophotometric method; --- Part 8. Determination of copper content Neocuproine - chloroform extraction spectrophotometric method; --- Part 9. Determination of copper content of sodium thiosulfate iodometry; --- Part 10. Determination of molybdenum content - Thiocyanate spectrophotometric method; --- Part 11. Determination of cinchonine gravimetric method tungsten content; --- Part 12. Determination of phosphorus content of n-butyl alcohol - chloroform extraction spectrophotometric method; --- Part 13. Determination of oxygen pulse heating inert gas fusion - infrared absorption method. This section YS/T 539 Part 3. The partial replacement of YS/T 539.3-2006 "nickel-based alloy powder chemical analysis of perchloric acid dehydration gravimetric method for the determination of silicon content." This portion of YS/T 539.3-2006 with more significant changes are as follows. --- Increasing the foreword; --- Complements the repeatability limit. The non-ferrous metal part by the National Standardization Technical Committee and centralized. This section is responsible for drafting unit. Beijing Nonferrous Metal Research Institute, West An Ruijian metal limited liability company. This section is drafted. Beijing Nonferrous Metal Research Institute, Steel Research Institute. The main drafters of this section. Liu, Plant Protection]. This part of the standard replaces the previous editions are. --- GB/T 8638.3-1988; --- YS/T 539.3-2006. Nickel-based alloy powder chemical analysis Part 3. Determination of the amount of silicon Perchloric acid dehydration gravimetric method1 ScopeYS/T 539 This part specifies the method for determination of nickel-base alloy powder silicon content. This section applies to the determination of nickel-base alloy powder of silicon content in the measurement range. 0.5% to 6%.2 Method summarySample acidified by alkali fusion (or acid dissolution), the perchloric acid dehydration smoke silicic acid, filtered, washed, burning into the silicon dioxide with sulfuric acid - Hydrofluoric acid treatment, the silicon generate volatile silicon tetrafluoride is removed, except by the poor quality of the silicon before and after the calculation of the mass fraction of silicon.3 ReagentsUnless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled or deionized water or equivalent purity. 3.1 sodium peroxide. 3.2 hydrochloride (ρ1.19g/mL). 3.3 perchloric acid (ρ1.67g/mL). Nitrate 3.4 (ρ1.42g/mL). 3.5 Hydrofluoric acid (ρ1.15g/mL). 3.6 hydrochloric acid (1 + 19). 3.7 sulfate (1 + 1). 3.8 ammonium thiocyanate solution (50g/L). 3.9 methanol. Step 4 Analysis 4.1 Sample Weigh 0.50g ~ 1.00g sample, accurate to 0.0001g. 4.2 Determination of the number of Independently measured twice and averaged. 4.3 blank test Along with sample blank test. 4.4 Determination 4.4.1 Sample Decomposition 4.4.1.1 nitric acid can be dissolved in hydrochloric acid and sample The sample (4.1) in 400mL beaker, add 30mL of hydrochloric acid (3.2), 4mL nitric acid (3.4) to dissolve the sample was heated to a low temperature, concentrated Reduced to a volume of about 10mL, add 40mL of methanol (3.9), the surface of the pan is removed leaving a little gap, low temperature slowly evaporated to 10mL or less, plus 5mL nitric acid (3.4), 25mL of perchloric acid (3.3), heated and evaporated to smoke, continue heating perchloric acid reflux smoke 15min ~ 20min. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of YS/T 539.3-2024_English be delivered?Answer: Upon your order, we will start to translate YS/T 539.3-2024_English as soon as possible, and keep you informed of the progress. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version YS/T 539.3-2024?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version YS/T 539.3-2024 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
