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GB/T 13748.22-2013: Chemical analysis methods of magnesium and magnesium alloys -- Part 22: Determination of thorium content
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| GB/T 13748.22-2013 | English | 174 |
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Chemical analysis methods of magnesium and magnesium alloys -- Part 22: Determination of thorium content
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GB/T 13748.22-2013
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Basic data | Standard ID | GB/T 13748.22-2013 (GB/T13748.22-2013) | | Description (Translated English) | Chemical analysis methods of magnesium and magnesium alloys -- Part 22: Determination of thorium content | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H12 | | Classification of International Standard | 77.120.10 | | Word Count Estimation | 9,921 | | Adopted Standard | ISO 5196-1-1980, IDT; ISO 5196-2-1980, IDT | | Regulation (derived from) | National Standards Bulletin 2013 No. 23 | | 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 method for the determination of thorium content of magnesium alloys. This standard applies to the determination of thorium content of magnesium alloys. Measurement range of 0. 20% to 5. 00%. This standard does not apply to meth | GB/T 13748.22-2013: Chemical analysis methods of magnesium and magnesium alloys -- Part 22: Determination of thorium content
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Chemical analysis methods of magnesium and magnesium alloys Part 22.. Determination of thorium content
ICS 77.120.10
H12
National Standards of People's Republic of China
Magnesium and its alloys -
Determination of thorium content. Part 22
-Part 22. Determinationofthoriumcontent
(ISO 5196-1. 1980, Magnesiumaloys-Determinationofthorium
-Part 1. Gravimetricmethod, IDT;
ISO 5196-2. 1980, Magnesiumaloys-Determinationofthorium
-Part 2. Titrimetricmethod, IDT)
Issued on. 2014-08-01 2013-11-27 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.
Part is divided into 22 sections.
This section is in accordance with GB/T 1.1-2009 given rules drafted.
1980 "Determination of magnesium alloy thorium content. This section includes two methods, 5196-1 ISO " a method "use of translation method is equivalent to using
Weight method ";" Method II "use the translation method identical with ISO 5196-2. 1980" Determination of magnesium alloy thorium titration ", so as to facilitate
With "a method" and "Method II" made the following editorial changes.
--- Delete the corresponding international standard "preface" and "Directory";
--- According to China's national standards, the corresponding text editorial process.
"A method" in this section for thorium content of magnesium alloy arbitration in 0.20% to 5.00 percent.
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.
This section is drafted. Guizhou Physical and Chemical Analysis Test Center.
The main drafters of this section a method. Shi Lei, Zhang Jidong, Zeng Ping, Zhang Jie, Li Ronghua, Li Jiahua.
Method Two main drafters of this section. Xue Ning, Zeng Ping, Zhang Jidong, Hu Xuan, Li Ronghua, Li Jiahua.
Magnesium and its alloys -
Determination of thorium content. Part 22
1 Scope
This section specifies the determination of magnesium alloys thorium content.
This section applies to the determination of thorium content of magnesium alloys. Determination of the range of 0.20% to 5.00%.
This section does not apply to method two magnesium alloy containing silver.
2 General
2.1 Unless otherwise indicated, this part of the reagents used are in line with national standards or industry standard analytical reagents, which are distilled water
Distilled water.
2.2 specimens should be processed to a thickness of less than 1mm debris.
Method 3 a gravimetric method
3.1 Method summary
Sample was dissolved with hydrochloric acid, in the form of preliminary separation of thorium benzoate, dissolve the precipitate thorium oxalate salt reprecipitation, calcined, oxide
Thorium in the form of weighing.
3.2 Reagents
3.2.1 hydroxylamine hydrochloride (NH2OH · HCl).
3.2.2 ammonium chloride (NH4Cl).
3.2.3 hydrochloric acid (ρ = 1.19g/mL), pure class distinctions.
3.2.4 hydrochloric acid solution (3mol/L).
3.2.5 ammonium hydroxide solution (ρ = 0.17g/mL). 250mL ammonia diluted with water (ρ = 0.91g/mL) to 1000mL, shake.
3.2.6 benzoic acid solution (20g/L). 20g were dissolved benzoic acid (C6H5COOH) in hot water, cooled and filtered, if necessary, diluted to
1000mL, shake.
3.2.7 benzoic acid solution (2.5g/L). 2.5g was dissolved benzoic acid (C6H5COOH) in hot water, cooled and filtered, if necessary, diluted to
1000mL, shake.
3.2.8 a saturated solution of oxalic acid (room temperature).
3.2.9 oxalic acid bath. diluted with water and 70mL saturated solution of oxalic acid (3.2.8) to 500mL.
3.2.10 bromophenol blue solution (4g/L). Weigh 0.4g bromophenol blue placed in a mortar, was added 8.25mL of sodium hydroxide solution (5g/L), grinding
To dissolve all the water moved 100mL volumetric flask, dilute to the mark.
3.3 Instrument
Common laboratory equipment.
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