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GB/T 13748.1-2013 English PDF

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GB/T 13748.1-2013: Chemical analysis methods of magnesium and magnesium alloys -- Part 1: Determination of aluminium content
Status: Valid

GB/T 13748.1: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 13748.1-2013English329 Add to Cart 3 days [Need to translate] Chemical analysis methods of magnesium and magnesium alloys -- Part 1: Determination of aluminium content Valid GB/T 13748.1-2013
GB/T 13748.1-2005English519 Add to Cart 4 days [Need to translate] Chemical analysis methods of magnesium and magnesium alloys -- Determination of aluminium content Obsolete GB/T 13748.1-2005
GB/T 13748.1-1992English399 Add to Cart 3 days [Need to translate] Magnesium and its alloys--Determination of aluminium content Obsolete GB/T 13748.1-1992

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Basic data

Standard ID GB/T 13748.1-2013 (GB/T13748.1-2013)
Description (Translated English) Chemical analysis methods of magnesium and magnesium alloys -- Part 1: Determination of aluminium content
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H12
Classification of International Standard 77.120.20
Word Count Estimation 14,163
Older Standard (superseded by this standard) GB/T 13748.1-2005
Adopted Standard ISO 791-1993; MOD; ISO 3255-1974; MOD
Regulation (derived from) National Standards Bulletin 2013 No. 17
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies: the aluminum content of magnesium and magnesium alloys Determination. The standard method applied to a magnesium alloy (containing zirconium, beryllium, thorium or rare earths) in aluminum content determined. Measuring range: 0. 0

GB/T 13748.1-2013: Chemical analysis methods of magnesium and magnesium alloys -- Part 1: Determination of aluminium content


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Chemical analysis methods of magnesium and magnesium alloys Part 1. Determination of aluminium content ICS 77.120.20 H12 National Standards of People's Republic of China Replacing GB/T 13748.1-2005 Magnesium and its alloys - Part 1. Determination of aluminum content Part 1. Determinationofaluminiumcontent (ISO 791. 1973, Magnesiumandmagnesiumaloys-Determinationof aluminium-ChromazurolSphotometricmethod, MOD; ISO 3255. 1974, Magnesiumaloys-Determinationofaluminium -8-Hydroxyquinolinegravimetricmethod, MOD) Issued on. 2014-05-01 2013-09-06 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 13748 "analysis methods of magnesium and magnesium alloys" is divided into 22 parts. --- Part 1. Determination of aluminum content; --- Part 2. Determination of tin content pyrocatechol violet spectrophotometry; --- Part 3. Determination of lithium content Flame atomic absorption spectrometry; --- Part 4. Determination of manganese content periodate spectrophotometry; --- Part 5. Determination of yttrium content inductor coupled plasma atomic emission spectrometry; --- Part 6. Determination of silver by flame atomic absorption spectrometry; --- Part 7. Determination of zirconium content; --- Part 8. rare earth content Gravimetric method; --- Part 9. Determination of iron content phenanthroline spectrophotometry; --- Part 10. Determination of silicon content - Molybdenum blue spectrophotometric method; --- Part 11. Determination of beryllium content Eriochrome cyanine R spectrophotometry; --- Part 12. Determination of copper content; --- Part 13. Determination of lead content by flame atomic absorption spectrometry; --- Part 14. Determination of nickel dimethylglyoxime spectrophotometry; --- Part 15. Determination of zinc content; --- Part 16. Determination of calcium content by flame atomic absorption spectrometry; --- Part 17. potassium content and sodium content - Flame atomic absorption spectrometry; --- Part 18. Determination of the chlorine content of silver chloride turbidimetric method; --- Part 19. Determination of titanium content security for spectrophotometric morpholino than methane; --- Part 20. ICP-AES determination of element contents; --- Part 21. photoelectric direct reading atomic emission spectroscopy method element content; --- Part 22. Determination of thorium content. This section GB/T 13748 Part 1. The object is to have a standard adoption of Part 1, Part 4, Section 7, Section 8, Section 9, Section 10, Section 12, Part 14, Part 159 sections revised. This section drafted in accordance with GB/T 1.1-2009 given rules. This Part replaces GB/T 13748.1-2005 "magnesium and magnesium alloys Determination of aluminum content analysis methods." This section compared with the GB/T 13748.1-2005, the main technical changes are as follows. --- The method I. Method II and Method Three "scope" merged into Chapter 1, "scope"; --- Increased Chapter 2, "General" requirements; --- Increased Chapter 6, "lab report" requirement; --- Remove the "quality assurance and control" requirements; --- Increased the arbitration provisions. Method two Use this section to modify the redrafted law adopted ISO 3255. 1974 "Determination of aluminum magnesium alloy chromium Azure S Spectrophotometry Spectrophotometry ", and ISO 3255. 1974, compared with more adjustment in the structure, listed in Appendix A of this part of the second method and ISO 3255. Article 1974 of chapter numbering control list. Technical differences exist compared to 1974, the terms of these differences has been involved through its outer margin bit. This part of ISO 3255 Opposing vertical single line (|) were marked. This part of ISO 3255. 1974 technical differences and their reasons are as follows. --- In order to meet our technical conditions, the "Chromium Azure S Spectrophotometry" to "Chromazurol S- cylpyridinium chloride spectrophotometric Spectrophotometry "; --- Measured by the scope of the "0.01% to 0.20%" to "0.0030% - 0.300%"; --- Increase Chromazurol S- cylpyridinium chloride method of preparation; --- Edit "curve drawing" approach to meet the requirements of the standard preparation of the system; --- Modify the formula analysis results, prepared to meet the requirements of the standard system. This section method using three redrafted law revision using ISO 791. 1973 "Determination of magnesium alloy aluminum 8-hydroxyquinoline weight Law ", and ISO 791. 1973, compared with more adjustment in the structure, listed in Appendix B of this part of the three methods and ISO 791. Chapter 1973 Article ID Control List. This part of ISO 791. 1973 technical differences exist compared to the terms of these differences have been involved in the blank position by its outer margin Vertical single line (|) were marked. This part of ISO 791. 1973 technical differences and their reasons are as follows. --- Method summary modify, delete potassium cyanide use, reduce pollution; --- Modify the formula analysis results, prepared to meet the requirements of the standard system. Arbitration "a method" in this section of the aluminum content of 0.020% 0.300% magnesium alloy (zirconium, beryllium, thorium and rare earth), the "party Act II "for the aluminum content of 0.0030% ~ 0.300% of magnesium and magnesium alloys (excluding titanium, zirconium, beryllium, rare earth) of arbitration, this part of the" Method Three "arbitration method for the aluminum content 1.50% 12.00% magnesium alloy (excluding zirconium, thorium and rare earth) of. The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized. This section is responsible for drafting units. Aluminum Corporation of China Zhengzhou Research Institute, China Nonferrous Metals Industry Quality Standards and Metrology Institute The study. A part of this method, Method Two drafting unit. Beijing Nonferrous Metal Research Institute. This section is drafted Method three. Beijing Nonferrous Metal Research Institute, Southwest Aluminum (Group) Co., Ltd. The main drafters of this section a method. Li Na, Wang Aici, Wangxiu Fen, Zangmu Wen Tong Jian. Method Two main drafters of this section. Zangmu Wen, Wang Aici, Tong Jian, Liu Ying. Method three main drafters of this section. Liu Bing, Deng Lanhong, Chenxiong Li, Tan Haiyan, Hu Yongli. This part of the standard replaces the previous editions are. --- GB/T 13748.1-1992, GB/T 13748.1-2005. Magnesium and its alloys - Part 1. Determination of aluminum content

1 Scope

GB/T 13748 provisions of this part of the magnesium and magnesium alloys Determination of aluminum content. This section applies to a method of magnesium alloy (zirconium, beryllium, thorium and rare earth) Determination of aluminum content. Measurement range. 0.020% - 0.300%. Method Two This section applies to magnesium and magnesium alloys (excluding titanium, zirconium, beryllium, rare earth) Determination of aluminum content. Measurement range. 0.0030% ~ 0.300%. This section applies to Method three magnesium alloy (excluding zirconium, thorium and rare earth) Determination of aluminum content. Measuring range. 1.50% - 12.00%.

2 General

2.1 Unless otherwise indicated, this part of the reagents used are in line with national standards or industry standard analytical reagent, the water are distilled water. 2.2 specimens should be processed to a thickness of less than 1mm debris. Method 3 a 8-hydroxyquinoline spectrophotometry 3.1 Method summary Sample was dissolved in hydrochloric acid. In the ammonium carbonate solution pH9.5 in order thioglycolic acid as a masking agent, extracted with benzene and aluminum benzoyl phenylhydroxylamine Precipitate generated back-extracted with dilute hydrochloric acid, aluminum and interfering elements separated. In pH4.8 acid - sodium acetate buffer solution with 8-hydroxyquinoline Color, measured at 390nm wavelength spectrophotometer absorbance. 3.2 Reagents 3.2.1 chloroform. 3.2.2 benzene. 3.2.3 hydrochloric acid (11), pure class distinctions. 3.2.4 hydrochloric acid (110), pure class distinctions. 3.2.5 hydrochloric acid. c (HCl) = 0.2mol/L, pure class distinctions. 3.2.6 thioglycolic acid solution. Take 20mL thioglycolic acid (80%) was added 80mL of water. 3.2.7 Ammonia (110), pure class distinctions. 3.2.8 ammonium carbonate solution (200g/L), stored in a plastic bottle. 3.2.9 benzoyl phenylhydroxylamine (BPHA) ethanol (20g/L). 2gBPHA was dissolved in 100mL of ethanol. Formulated with time. 3.2.10 8-quinolinol solution. Weigh 5g8- hydroxyquinoline was dissolved in 100mL acetic acid solution [c (CH3COOH) = 2mol/L], and Medium speed filter paper, stored in a brown reagent bottle. 3.2.11 acetic acid - sodium acetate buffer solution. Anhydrous sodium acetate solution and an equal volume of [c (CH3COONa) = 2mol/L] and acetic acid [C (CH3COOH) = 2mol/L] mixed. 3.2.12 aluminum standard stock solution. Weigh 1.0000g of aluminum (wAl≥99.9%) in a polyethylene beaker, add 20mL water, 3g Sodium hydroxide, wait until the complete dissolution with hydrochloric acid (ρ = 1.19g/mL) and slowly neutralized to precipitate, and excess 20mL, stirring constantly

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