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YS/T 325.1-2009 English PDF

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YS/T 325.1-2009: Methods for chemical analysis of nickel-copper alloy. Part 1: Determination of nickel content. The Na2EDTA titrimetric method
Status: Valid

YS/T 325.1: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
YS/T 325.1-2009English169 Add to Cart 3 days [Need to translate] Methods for chemical analysis of nickel-copper alloy. Part 1: Determination of nickel content. The Na2EDTA titrimetric method Valid YS/T 325.1-2009
YS/T 325-1994English359 Add to Cart 3 days [Need to translate] ((NCu28-2. 5-1. 5) chemical analysis of nickel-copper alloy) Obsolete YS/T 325-1994

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YS/T 252.6   GB/T 3884.2   GB/T 3884.1   YS/T 325.4   YS/T 325.5   YS/T 325.3   

Basic data

Standard ID YS/T 325.1-2009 (YS/T325.1-2009)
Description (Translated English) Methods for chemical analysis of nickel-copper alloy. Part 1: Determination of nickel content. The Na2EDTA titrimetric method
Sector / Industry Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard H13
Classification of International Standard 77.120.40
Word Count Estimation 6,649
Date of Issue 2009-12-04
Date of Implementation 2010-06-01
Regulation (derived from) MIIT [2009] No. 66
Issuing agency(ies) Ministry of Industry and Information Technology
Summary This standard specifies the amount of nickel in nickel-copper alloys Determination. This standard applies to nickel-copper alloys Determination of nickel content, measuring range: 30. 00% ~ 85. 00%.

YS/T 325.1-2009: Methods for chemical analysis of nickel-copper alloy. Part 1: Determination of nickel content. The Na2EDTA titrimetric method


---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-copper alloy.Part 1. Determination of nickel content.The Na2EDTA titrimetric method ICS 77.120.40 H13 People's Republic of China Nonferrous Metals Industry Standard Nickel-copper alloys - Part 1. Determination of nickel content of N Rao 2EDTA 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 325-2009 "nickel-copper alloy chemical analysis method" a total of six sections. --- Part 1. Determination of nickel content Na2EDTA titration --- Part 2. Determination of copper content - Gravimetric method electrolysis --- Part 3. Determination of iron content by flame atomic absorption spectrometry --- Part 4. Determination of manganese content by flame atomic absorption spectrometry --- Part 5. Determination of aluminum content Na2EDTA titration --- Part 6. Determination of the amount of titanium di Zhao DAM spectrophotometry This section YS/T Part 1 325. The non-ferrous metal part by the National Standardization Technical Committee and centralized. This section is responsible for drafting unit. aluminum Shenyang Nonferrous Metals Processing Co., Ltd. This section is drafted. Guangzhou Nonferrous Metal Research Institute. The main drafters of this section. Dai Fengying, Zhang Ming, Zhang Jin, Liu Yan, wide Jin Lee, Hao Zhang. Nickel-copper alloys - Part 1. Determination of nickel content of N Rao 2EDTA titration

1 Scope

YS/T of the provisions of section 325 of the determination of nickel content of nickel-copper alloy. This section applies to the determination of nickel content of nickel-copper alloy. Measurement range. 30.00% - 85.00%.

2 principle of the method

The sample is dissolved in nitric acid, in addition to copper electrolysis. In acetate solution with sodium thiosulfate and sodium tartrate masking residual copper and iron, aluminum, lead And other interfering elements, dimethylglyoxime precipitate nickel. The precipitate was dissolved in nitric acid, the evaporation destroy Diacetyldioxime. With an excess of disodium edetate (Na2EDTA) standard solution of nickel complex, at pH5 ~ pH6 titration with lead nitrate standard solution titrate excess Na2EDTA.

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 urea. 3.2 Ammonia (ρ0.90g/mL). 3.3 nitric acid (1 + 1). 3.4 nitric acid (1 + 100). Hydrochloride 3.5 (1 + 120). 3.6 acetic acid (1 + 2). Ammonia 3.7 (1 + 1). 3.8 sodium tartrate (C4H4O6Na2 · 5H2O) solution (100g/L). 3.9 ammonium acetate solution (200g/L). 3.10 sodium thiosulfate (Na2S2O3 · 5H2O) solution (100g/L). 3.11 ammonium solution of hexamethylenetetramine (100g/L). 3.12 dimethylglyoxime in ethanol (10g/L). Weigh 10g Diacetyldioxime dissolved in ethanol, diluted to 1000mL. 3.13 Nickel standard solution. Weigh 1.0000g pure nickel (Ni mass fraction ≥99.95%) placed in 250mL beaker, add 20mL nitrate Acid (3.3), dissolved by heating, boiled to remove oxides of nitrogen, cooled moved 1000mL volumetric flask, dilute with water to volume, and mix. This solution 1mL solution containing 0.001g of nickel (ρ). 3.14 lead nitrate [Pb (NO3) 2] Standard Solution Ba {[Pb (NO3) 2] = 0.0100mol/L}. 3.14.1 formulated Weigh 3.312g of lead nitrate into 300mL beaker, adding a small amount of water to dissolve and transferred to 1000mL volumetric flask, dilute to Volume, and mix. 3.14.2 Calibration Pipette 10.00mL (Vp 1) Disodium ethylenediaminetetraacetate (by Na2EDTA) standard solution (3.15) in the 300mL beaker, add 10mL Hexamethylenetetramine ammonium solution (3.11), 50mL water, drops 4 to 5 drops of xylenol orange solution (3.16) with acetic acid (3.6) and to the solution from purple Turns yellow, standard titration with lead nitrate solution (3.14) to the titration from yellow to red is just the end of the volume, record consumption (V0). According to equation (1) calculate the standard titration lead nitrate solution (3.14) equivalent Na2EDTA standard solution (3.15) milliliters. K = 1 Vp V0 (1)

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