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GB/T 13747.11-2017: Methods for chemical analysis of zirconium and zirconium alloys -- Part 11: Determination of molybdenum content -- Thiocyanate spectrophotometry
Status: Valid GB/T 13747.11: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 13747.11-2017 | English | 119 |
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Methods for chemical analysis of zirconium and zirconium alloys -- Part 11: Determination of molybdenum content -- Thiocyanate spectrophotometry
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GB/T 13747.11-2017
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| GB/T 13747.11-1992 | English | 159 |
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Zirconium and zirconium alloys. Determination of molybdenum content. Thiocyanate spectrophotometric method
| Obsolete |
GB/T 13747.11-1992
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Basic data | Standard ID | GB/T 13747.11-2017 (GB/T13747.11-2017) | | Description (Translated English) | Methods for chemical analysis of zirconium and zirconium alloys -- Part 11: Determination of molybdenum content -- Thiocyanate spectrophotometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H63 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 6,642 | | Date of Issue | 2017-09-29 | | Date of Implementation | 2018-04-01 | | 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 | GB/T 13747.11-2017: Methods for chemical analysis of zirconium and zirconium alloys -- Part 11: Determination of molybdenum content -- Thiocyanate spectrophotometry
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Methods for chemical analysis of zirconium and zirconium alloys - Part 11. Determination of molybdenum content - Thiocyanate spectrophotometry
ICS 77.120.99
H63
National Standards of People's Republic of China
Replacing GB/T 13747.11-1992
Methods for chemical analysis of zirconium and zirconium alloys
Part 11. Determination of molybdenum content
Thiocyanate spectrophotometry
Methods for chemical analysis of zirconiumiumandzirconiumaloys-
Part 11.Determination of molybdenumcontent-
2017-09-29 Posted
2018-04-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
GB/T 13747 "zirconium and zirconium alloy chemical analysis method" is divided into 27 parts.
--- Part 1. Determination of tin content potassium iodate titration and phenylfluorone - polyethylene glycol octyl phenyl ether spectrophotometry;
--- Part 2. Determination of iron content 1,10-phenanthroline spectrophotometry and inductively coupled plasma atomic emission spectrometry;
--- Part 3. Determination of nickel content dimethylglyoxime spectrophotometry and inductively coupled plasma atomic emission spectrometry;
--- Part 4. Determination of chromium content Diphenylcarbazide spectrophotometry and inductively coupled plasma atomic emission spectrometry;
--- Part 5. Determination of aluminum content chrome azure S-tetradecyl pyridine chloride spectrophotometry;
--- Part 6. Determination of copper content 2,9-dimethyl-1,10-phenanthroline spectrophotometry;
--- Part 7. Determination of manganese content potassium periodate spectrophotometry and inductively coupled plasma atomic emission spectrometry;
--- Part 8. Determination of cobalt content Nitroso R salt spectrophotometry;
--- Part 9. Determination of magnesium content by flame atomic absorption spectrometry;
--- Part 10. Determination of tungsten content thiocyanate spectrophotometry;
--- Part 11. Determination of molybdenum content thiocyanate spectrophotometry;
--- Part 12. Determination of silicon content Molybdenum blue spectrophotometry;
--- Part 13. Determination of lead content polarographic method;
--- Part 14. Determination of uranium volume Polarographic method;
--- Part 15. Determination of boron content curcumin spectrophotometry;
--- Part 16. Determination of chlorine content of silver chloride turbidity and ion selective electrode method;
--- Part 17. Determination of cadmium content Polarographic method;
--- Part 18. Determination of vanadium content; Benzoylphenylhydroxylamine spectrophotometry;
--- Part 19. Determination of titanium content diantipyryl methane spectrophotometry and inductively coupled plasma atomic emission spectrometry;
--- Part 20. Determination of hafnium content Inductively coupled plasma atomic emission spectrometry;
--- Part 21. Determination of hydrogen content inert gas melting infrared absorption method/thermal conductivity method;
Part 22 - Determination of oxygen and nitrogen content - Inert gas fusion infrared absorption method/Thermal conductivity method;
--- Part 23. Determination of nitrogen content Distillation separation - Nessler reagent spectrophotometry;
--- Part 24. Determination of carbon content High-frequency combustion infrared absorption method;
--- Part 25. Determination of niobium content 5-Br-PADAP spectrophotometry and inductively coupled plasma atomic emission spectrometry;
--- Part 26. Determination of alloying and impurity elements; Inductively coupled plasma atomic emission spectrometry;
--- Part 27. Determination of trace impurity elements Inductively coupled plasma mass spectrometry.
This section GB/T 13747 Part 11.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part replaces GB/T 13747.11-1992 "zirconium and zirconium alloys chemical analysis methods thiocyanate spectrophotometric determination of molybdenum content."
This section compared with GB/T 13747.11-1992, in addition to editorial changes outside the main technical changes are as follows.
--- Removed the "reference standard" (Chapter.1992 of Chapter 2);
--- Increase the sample terms (see Chapter 5);
--- Will be allowed to change the precision of the terms (see Chapter 8,.1992 edition Chapter 8);
--- Added test report terms (see Chapter 9).
This part is proposed by China Nonferrous Metal Industry Association.
This part of the National Non-ferrous Metal Standardization Technical Committee (SAC/TC243) centralized.
This part of the drafting unit. Western Metal Materials Co., Ltd., Bao Titanium Group Co., Ltd., Northwest Nonferrous Metal Research Institute, Guangdong Provincial Engineering
Industry Analysis and Testing Center, the national standard (Beijing) Inspection and Certification Co., Ltd., the new zirconium core material Technology Co., Ltd. in the west.
The drafters of this section. Li Xun, Yang Junhong, Shi Xin layer, Bai Huanhuan, Liu Ting, Wang Jinlei, Luo Lin, Zhang Yongjin, Xiong Xiaoyan, Wang Changhua, ink Shumin.
This part replaces the standards previously issued as.
--- GB/T 13747.11-1992.
Methods for chemical analysis of zirconium and zirconium alloys
Part 11. Determination of molybdenum content
Thiocyanate spectrophotometry
1 Scope
GB/T 13747 provisions of this part of zirconium and zirconium alloys Determination of the amount of molybdenum.
This section applies to sponge zirconium, zirconium and zirconium molybdenum content determination. Measurement range. 0.0025% to 0.025%.
2 method summary
The sample is decomposed with sulfuric acid-ammonium sulfate, and the molybdenum is reduced to pentavalent with tin dichloride in the presence of iron (III) in a sulfuric acid medium to react with thiocyanate
Orange-red complex. Extract with ethyl acetate and measure its absorbance at a wavelength of 470 nm of the spectrophotometer.
3 reagent
Unless otherwise noted, only reagents identified as superior pure and laboratory grade II water were used in the analysis.
3.1 Ammonium sulfate, analytical grade.
3.2 Sulfuric acid (ρ = 1.84/mL), analytical grade.
3.3 Sulfuric acid (1 4).
3.4 ammonium ferric sulfate (5g/L).
3.5 Potassium thiocyanate (50 g/L).
3.6 Stannous chloride solution (100g/L) Weigh 50g of stannous chloride (SnCl2 · 2H2O), dissolved in 50mL of hydrochloric acid (ρ = 1.19g/mL)
In water, dilute with water to 500mL, mix well.
3.7 Ethyl acetate, analytical grade.
3.8 Molybdenum standard stock solution Weigh 0.5000g metal molybdenum (wMo ≥ 99.9%), placed in 400mL beaker, add 50mL sulfuric acid
(11), in the case of heating, dropping nitric acid (ρ = 1.42g/mL) dissolved, continue heating to take sulfuric acid smoke. Cool, add 20mL water, add
Heat dissolves salts. Moved into 500mL volumetric flask, diluted with water to the mark, mix well. This solution 1 mL contains 1.0 mg molybdenum.
3.9 Molybdenum standard solution Pipette 10.00mL molybdenum standard stock solution (3.8), in 1000mL volumetric flask, diluted with water to the mark, mixed
uniform. 1 mL of this solution contains 10 μg of molybdenum.
4 instruments
Spectrophotometer.
5 sample
5.1 Sampling
Sponge zirconium, zirconium and zirconium alloy sampling should be in accordance with the promulgation of the corresponding standard methods.
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