YS/T 539.9: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| YS/T 539.9-2024 | English | RFQ |
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(Chemical analysis method for nickel-based alloy powder - Part 9: Determination of the content of impurities - Inductively coupled plasma atomic emission spectrometry)
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YS/T 539.9-2024
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| YS/T 539.9-2009 | English | 239 |
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Method for chemical analysis of nickel base alloy powder. Part 9: Determination of copper content. Thiosulfate iodimetry
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YS/T 539.9-2009
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| YS/T 539.9-2006 | English | 199 |
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Nickel base alloy powder. Determination of copper content. Thiosulfate-iodimetric method
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YS/T 539.9-2006
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Basic data | Standard ID | YS/T 539.9-2024 (YS/T539.9-2024) | | Description (Translated English) | (Chemical analysis method for nickel-based alloy powder - Part 9: Determination of the content of impurities - Inductively coupled plasma atomic emission spectrometry) | | 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Standard | 77.16 | | Date of Issue | 2024-10-24 | | Date of Implementation | 2025-05-01 | | Older Standard (superseded by this standard) | YS/T 539.2-2009, YS/T 539.5-2009, YS/T 539.7-2009, YS/T 539.8-2009, YS/T 539.10-2009 | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This standard specifies the method for determining the content of iron, chromium, molybdenum, aluminum, cobalt, boron, manganese, copper, niobium, titanium, magnesium, zirconium, vanadium, tungsten and hafnium in nickel-based alloy powder by inductively coupled plasma atomic emission spectrometry. This standard is applicable to the determination of the content of iron, chromium, molybdenum, aluminum, cobalt, boron, manganese, copper, niobium, titanium, magnesium, zirconium, vanadium, tungsten and hafnium in nickel-based alloy powder, with a determination range of 0.010% to 5.00%. | YS/T 539.9-2009: Method for chemical analysis of nickel base alloy powder. Part 9: Determination of copper content. Thiosulfate iodimetry
---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 nickel base alloy powder.Part 9. Determination of copper content.Thiosulfate iodimetry
ICS 77.120.40
H71
People's Republic of China Nonferrous Metals Industry Standard
Replacing YS/T 539.9-2006
Nickel-based alloy powder chemical analysis
Part 9. Determination of copper content
Sodium thiosulfate Iodimetry
Posted 2009-12-04
2010-06-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
YS/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 is YS/T 539 Part 9.
The partial replacement of YS/T 539.9-2006 "nickel-based alloy powder chemical analysis of sodium thiosulfate - iodometric method for the determination of copper content."
This portion of YS/T 539.9-2006 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, China Nonferrous Metals Industry Institute of Standards and Metrology and Quality.
This section is drafted. Beijing Nonferrous Metal Research Institute, Steel Research Institute.
The main drafters of this section. CHONG LI Man Chi, Saline.
This part of the standard replaces the previous editions are.
--- GB/T 8638.9-1988;
--- YS/T 539.9-2006.
Nickel-based alloy powder chemical analysis
Part 9. Determination of copper content
Sodium thiosulfate Iodimetry
1 Scope
YS/T 539 This part specifies the method for determination of nickel-base alloy powder of copper content.
This section applies to the determination of nickel base alloy powder copper content, measuring range. 1% to 5%.
2 Method summary
Sample by mixed acid dissolved. In sulfuric acid, copper and copper sulfide precipitate sodium thiosulfate, iron, chromium, manganese and other elements of interference points
from. The pellet burning into copper oxide with molten potassium pyrophosphate, potassium iodide in acetic acid medium, liberated iodine with starch as indicator
Standard solution titrated with sodium thiosulfate.
3 Reagents
Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled or deionized water or equivalent purity.
3.1 potassium pyrosulfate.
3.2 potassium iodide.
3.3 ammonium fluoride.
3.4 hydrochloride (ρ1.19g/mL).
Nitrate 3.5 (ρ1.42g/mL).
3.6 sulfate (ρ1.84g/mL).
3.7 phosphoric acid (ρ1.69g/mL).
3.8 Glacial acetic acid (ρ1.05g/mL).
3.9 sulfate (1 + 1).
3.10 sodium thiosulfate solution (500g/L).
3.11 ammonia (1 + 1).
3.12 ammonium thiocyanate solution (200g/L).
3.13 starch solution (10g/L). Weigh 1g of soluble starch and distilled water into a paste, poured into 80mL boiling water, boil until starch Full
Ministry dissolved. After cooling dilute to 100mL, and mix. The time is now equipped with.
3.14 Copper Standard solution. Weigh 1.0000g copper (Cu > 99.99%), adding 20mL water, 10 mL of nitric acid (3.5), dissolved by heating, plus
10mL sulfuric acid (3.6), evaporate to take sulfuric smoke 1min, cool. Salts dissolved in water and transferred to 1000mL volumetric flask, dilute to the mark with water
Degree, and mix. 1mL solution containing 1mg of copper.
3.15 sodium thiosulfate standard titration solution [Ba (Na2S2O3 · 5H2O) = 0.01mol/L]
3.15.1 preparation. Weigh 2.48g of sodium thiosulfate (Na2S2O3 · 5H2O) and dissolved in boiling distilled water cooling, add 0.2g of anhydrous
Sodium carbonate, dissolved completely cooled and diluted with boiling distilled water to 1000mL, and mix. Store in a brown bottle, placed 8d ~ 14d
After calibration use.
3.15.2 Calibration. Pipette 20.00mL copper standard solution (3.14) three, were placed in three 300mL conical flask, add 30mL water,
Dropping ammonia (3.11) until the solution is blue, then drop the blue ice disappear and excess acid 2mL, add 3g of potassium iodide, mix, dark place
Set 2min, titration with sodium thiosulfate standard solution (3.15) titration until the solution was light yellow, add 5mL starch solution (3.13), 10mL sulfur
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