YS/T 539.1: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| YS/T 539.1-2024 | English | RFQ |
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(Chemical analysis method for nickel-based alloy powder - Part 1: Determination of boron content - Phenanthroline spectrophotometry)
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YS/T 539.1-2024
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| YS/T 539.1-2009 | English | 199 |
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Methods for chemical analysis of nickel base alloy powder. Part 1: Determination of boron content. Acid-base titration
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YS/T 539.1-2009
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| YS/T 539.1-2006 | English | 199 |
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Nickel base alloy powder. Determination of boron content. Alkalimetric method
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YS/T 539.1-2006
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Basic data | Standard ID | YS/T 539.1-2024 (YS/T539.1-2024) | | Description (Translated English) | (Chemical analysis method for nickel-based alloy powder - Part 1: Determination of boron content - Phenanthroline 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Standard | 77.16 | | Date of Issue | 2024-10-24 | | Date of Implementation | 2025-05-01 | | Older Standard (superseded by this standard) | YS/T 539.1-2009 | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This standard specifies the method for determining the boron content in nickel-based alloy powder by acid-base titration. This standard is applicable to the determination of boron content in nickel-based alloy powder, with a determination range of 1.00% to 20.00%. | YS/T 539.1-2009: Methods for chemical analysis of nickel base alloy powder. Part 1: Determination of boron content. Acid-base titration
---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 1. Determination of boron content.Acid-base titration
ICS 77.120.40
H71
People's Republic of China Nonferrous Metals Industry Standard
Replacing YS/T 539.1-2006
Nickel-based alloy powder chemical analysis
Part 1. Determination of the amount of boron
Acid-base titration
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 1.
The partial replacement of YS/T 539.1-2006 "nickel-based alloy powder chemical analysis methods and determination of titration of boron content."
This portion of YS/T 539.1-2006 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. Yang Ping, Chen Yun red, hemp three clear.
This part of the standard replaces the previous editions are.
--- GB/T 8638.1-1988;
--- YS/T 539.1-2006.
Nickel-based alloy powder chemical analysis
Part 1. Determination of the amount of boron
Acid-base titration
1 Scope
YS/T 539 This part specifies the method for determination of nickel-base alloy powder of boron content.
This section applies to contain tungsten, molybdenum, nickel-based alloy powder boron content measurement, measurement range. 1% to 6%.
2 Method summary
Sample molten sodium peroxide, hydrochloric acid, sodium sulfite reduction of chromium, alkali separation of iron, chromium, nickel and other elements. The solution was adjusted to neutral with
Barium carbonate (Ca) separating aluminum. Mannitol and boric acid complex. Quantitative release of H +, titrated with standard sodium hydroxide solution.
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 sodium peroxide.
3.2 sodium sulfite.
3.3 sodium hydroxide.
3.4 barium carbonate (calcium).
3.5 mannitol.
3.6 hydrochloride (ρ1.19g/mL).
3.7 hydrochloric acid (1 + 20).
3.8 standard titration solution of sodium hydroxide [Ba (NaOH) ≈0.05mol/L].
3.8.1 preparation. Weigh 2g of sodium hydroxide in 1000mL beaker, add 10mL barium chloride solution (100g/L), boiled for 1min ~
2min, diluted with water to 1000mL, and mix, put it aside, move the supernatant to a plastic bottle for storage.
3.8.2 Calibration. Weigh 0.3000g 3 copies in advance by 105 ℃ ~ 110 ℃ baking 1h and placed in the dryer to cool to room temperature acid
Potassium benchmark reagents, were placed in three 250mL conical flask, add water to dissolve 50mL, plus (2-3) drops of phenolphthalein indicator (3.11), hydrogen
Sodium hydroxide standard titration solution (3.8) titration until the solution was just as stable reddish end. 3 parts of sodium hydroxide standard titration solution consumed
Volume difference value of the solution should not exceed 0.05mL, averaged.
According to formula (1) calculate the standard volumetric sodium hydroxide solution (3.8) of the actual concentration.
Ba 0 =
Vp 0 × 204.2
(1)
Where.
Ba 0 --- the actual concentration of standard solution of sodium hydroxide, in units of moles per liter (mol/L);
V0 --- titrate the average volume of sodium hydroxide standard titration solution consumed in milliliters (mL);
204.2 --- molar mass of potassium hydrogen phthalate, in units of grams per mole (g/mol).
3.9 hydrochloric acid standard titration solution [Ba (HCl) ≈0.05mol/L].
3.9.1 preparation. Pipette 4.2mL hydrochloric acid (3.6) in 1000mL volumetric flask, dilute with water to volume, and mix.
3.9.2 Calibration. Pipette 3 parts 25.00mL standard volumetric hydrochloric acid solution (3.9) were placed in three 250mL conical flask, add 50mL
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