YS/T 539.2-2024 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YS/T 539.2-2024	RFQ	ASK	3 days	(Chemical analysis method for nickel-based alloy powder - Part 2 Part: Determination of tungsten content - Glow discharge mass spectrometry)	Valid
YS/T 539.2-2009	239	Add to Cart	3 days	Method for chemical analysis of nickel base alloy powder. Part 2: Determination of aluminium content. Chromazurol S spectrophotometry	Obsolete
YS/T 539.2-2006	199	Add to Cart	2 days	Nickel base alloy powder. Determination of aluminium content. Chrome azure S spectrophotometric method	Obsolete

Basic data

Standard ID: YS/T 539.2-2024 (YS/T539.2-2024)
Description (Translated English): (Chemical analysis method for nickel-based alloy powder - Part 2 Part: Determination of tungsten content - Glow discharge mass 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Older Standard (superseded by this standard): YS/T 539.11-2009
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This standard specifies the method for determining the tungsten content in nickel-based alloy powders by the cinchonine weighing method. This standard applies to the determination of tungsten content in nickel-based alloy powder, with a determination range of 1.00% to 30.00%.

YS/T 539.2-2009: Method for chemical analysis of nickel base alloy powder. Part 2: Determination of aluminium content. Chromazurol S spectrophotometry

---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 2. Determination of aluminium content.Chromazurol S spectrophotometry ICS 77.120.40 H71 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 539.2-2006 Nickel-based alloy powder chemical analysis Part 2. Determination of aluminum content Chromium Azure S Spectrophotometry 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 YS/T 539 Part 2. The partial replacement of YS/T 539.2-2006 "nickel-based alloy powder of chromium azure S spectrophotometric determination of aluminum content." This portion of YS/T 539.2-2006 compared to the main changes are as follows. --- Increasing the foreword; --- Buffer solution consisting of hexamethylenetetramine to the solution of acetic acid - sodium acetate buffer; --- Changing the order of addition of reagent Chromium Azure S and the buffer solution; --- 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 Pengyu, Plant Protection], Zhou Rong?. This part of the standard replaces the previous editions are. --- GB/T 8638.2-1988; --- YS/T 539.2-2006. Nickel-based alloy powder chemical analysis Part 2. Determination of aluminum content Chromium Azure S Spectrophotometry

1 Scope

This section YS/T 539 specifies the method for determination of nickel-base alloy powder aluminum content. This section applies to the determination of nickel-base alloy powder aluminum content measurement range. from 0.05% to 1%.

2 Method summary

The sample is dissolved by mixed acid, at a pH of 5.3 to 5.9 acid medium, aluminum and chrome azure S generated purple complex, standard plus Into law at a wavelength of 545nm spectrophotometer measured absorbance. Containing 100μg vanadium in color solution, 2mg chromium, did not interfere; Iron, nickel interference masking available Zn-EDTA, 300μg titanium available 0.15g mannitol masking.

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 hydrochloride (ρ1.19g/mL). Nitrate 3.2 (ρ1.42g/mL). 3.3 perchloric acid (ρ1.67g/mL). 3.4 Hydrofluoric acid (ρ1.15g/mL). 3.5 Ammonia (ρ0.90g/mL). 3.6 HCl (1 + 1). 3.7 hydrochloric acid (1 + 10). Ammonia 3.8 (1 + 5). 3.9 mannitol solution (50g/L). 3.10 acetic acid - sodium acetate buffer solution. Take 60g of anhydrous sodium acetate in a beaker, 300mL of water and 4.25mL glacial acetic acid solution was heated Solutions to clear, diluted with water to 500mL. 3.11 ammonium fluoride solution (5g/L), stored in a plastic bottle. 3.12 ascorbic acid solution (50g/L), the time is now equipped with. 3.13 Chromium Azure S solution (0.5g/L). 3.14 Zn-EDTA (Zn - disodium ethylenediamine tetraacetate) solution. Weigh 8.1g of zinc oxide in a beaker, was added 40mL of hydrochloric acid (3.6), plus Heat to dissolve. Another weighed 37.2g disodium ethylenediamine tetraacetate (EDTA) was dissolved in 800mL of water, aqueous ammonia added 15mL (3.5), both solutions Merge, mix, adjusting the solution to pH 4-6 with aqueous ammonia (3.8) and hydrochloric acid (3.6), diluted with water to 1L, and mix. 3.15 nickel substrate solution. Weigh 1.00g of pure nickel (Ni≥99.99%) placed in 300mL beaker, 20mL dissolved in nitric acid (1 + 3), Transferred to 100mL volumetric flask, dilute with water to volume, and mix. This solution 1mL containing 10mg nickel. 3.16 aluminum standard stock solution. Weigh 1.0000g pure aluminum (Al≥99.99%) placed in 200mL plastic cup, add 10mL hydroxide Sodium solution (200g/L), dissolved by heating on a water bath, add water, 100mL, was added dropwise hydrochloric acid (3.6) until the solution was acidic after 10mL excess cold However, moved into 1000mL volumetric flask, dilute with water to volume, and mix. 1mL solution containing 1mg aluminum. 3.17 aluminum standard solution. Pipette 5.00mL standard aluminum stock solution (3.16) in 1000mL volumetric flask, dilute to the mark, mix uniform. This solution 1mL containing 5μg aluminum. ......

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