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GB/T 4698.12-2017: Methods for chemical analysis of titanium sponge, titanium and titanium alloys -- Part 12: Determination of vanadium content -- Ammonium ferrous sulfate titration and inductively coupled plasma atomic emission spectrometry
Status: Valid GB/T 4698.12: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 4698.12-2017 | English | 199 |
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Methods for chemical analysis of titanium sponge, titanium and titanium alloys -- Part 12: Determination of vanadium content -- Ammonium ferrous sulfate titration and inductively coupled plasma atomic emission spectrometry
| Valid |
GB/T 4698.12-2017
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| GB/T 4698.12-1996 | English | 159 |
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Sponge titanium, titanium and titanium alloys. Determination of vanadium content. Ammonium ferrous sulfate titration method
| Obsolete |
GB/T 4698.12-1996
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| GB/T 4698.12-1984 | English | RFQ |
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Methods for chemical analysis of titanium and titanium alloys--The ammonium ferrous sulfate volumetric method for the determination of vanadium content
| Obsolete |
GB/T 4698.12-1984
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PDF similar to GB/T 4698.12-2017
Basic data | Standard ID | GB/T 4698.12-2017 (GB/T4698.12-2017) | | Description (Translated English) | Methods for chemical analysis of titanium sponge, titanium and titanium alloys -- Part 12: Determination of vanadium content -- Ammonium ferrous sulfate titration and inductively coupled plasma atomic emission spectrometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H14 | | Classification of International Standard | 77.120.50 | | Word Count Estimation | 10,147 | | 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 4698.12-2017: Methods for chemical analysis of titanium sponge, titanium and titanium alloys -- Part 12: Determination of vanadium content -- Ammonium ferrous sulfate titration and inductively coupled plasma atomic emission spectrometry
---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 titanium sponge, titanium and titanium alloys - Part 12. Determination of vanadium content - Ammonium ferrous sulfate titration and inductively coupled plasma atomic emission spectrometry
ICS 77.120.50
H14
National Standards of People's Republic of China
Replacing GB/T 4698.12-1996
Sponge titanium, titanium and titanium alloys - Methods for chemical analysis
Part 12. Determination of vanadium content
Ferrous ammonium sulfate titration and inductively coupled plasma
Atomic emission spectrometry
Methods for chemical analysis of titanium nitride, titaniumandtitaniumaloys-
Part 12.Determinationofvanadiumcontent-
2017-09-29 Release.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 4698 "titanium sponge, titanium and titanium alloy chemical analysis method" is divided into the following sections.
--- Part 1. Determination of copper content by flame atomic absorption spectrometry;
--- Part 2. Determination of iron content;
--- Part 3. Determination of silicon content molybdenum blue spectrophotometry;
--- Part 4. Determination of manganese content Periodate spectrophotometry and inductively coupled plasma atomic emission spectrometry;
--- Part 5. Determination of molybdenum content thiocyanate spectrophotometry and inductively coupled plasma atomic emission spectrometry;
--- Part 6. Determination of boron content Methylene blue spectrophotometry and inductively coupled plasma atomic emission spectrometry
--- Part 7. Determination of oxygen content, nitrogen content;
--- Part 8. Determination of aluminum content Alkaline separation - EDTA complexometric titration and inductively coupled plasma atomic emission spectrometry;
--- Part 9. Determination of tin content potassium iodate titration and inductively coupled plasma atomic emission spectrometry;
--- Part 10. Determination of chromium content Ferrous ammonium sulfate titration and inductively coupled plasma atomic emission spectrometry (including vanadium);
--- Part 11. Determination of chromium content ferrous ammonium sulfate titration (excluding vanadium);
--- Part 12. Determination of vanadium content ammonium ferrous sulfate titration and inductively coupled plasma atomic emission spectrometry;
--- Part 13. Determination of zirconium content EDTA complexometric titration and inductively coupled plasma atomic emission spectrometry;
--- Part 14. Determination of carbon content;
--- Part 15. Determination of hydrogen content;
--- Part 17. Determination of magnesium content by flame atomic absorption spectrometry;
--- Part 18. Determination of tin content by flame atomic absorption spectrometry;
--- Part 19. Determination of molybdenum content; Thiocyanate spectrophotometric method;
--- Part 21. Determination of manganese, chromium, nickel, aluminum, molybdenum, tin, vanadium, yttrium, copper, zirconium content atomic emission spectrometry
--- Part 22. Determination of niobium content 5-Br-PADAP spectrophotometry and inductively coupled plasma atomic emission spectrometry;
--- Part 23. Determination of palladium content Stannous chloride - potassium iodide spectrophotometry and inductively coupled plasma atomic emission spectrometry;
--- Part 24. Determination of nickel content dimethylglyoxime spectrophotometry and inductively coupled plasma atomic emission spectrometry;
--- Part 25. Determination of chlorine content of silver chloride spectrophotometry;
--- Part 26. Determination of tantalum content and tungsten content; Inductively coupled plasma atomic emission spectrometry;
--- Part 27. Determination of neodymium content by inductively coupled plasma atomic emission spectrometry;
--- Part 28. Determination of ruthenium content Inductively coupled plasma atomic emission spectrometry.
This section GB/T 4698 Part 12.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part Replaces GB/T 4698.12-1996 "Titanium, titanium and titanium alloys - Determination of vanadium by ammonium ferrous sulfate titrimetric method
the amount".
This section compared with GB/T 4698.12-1996 main changes are as follows.
--- Removed the "reference standard" (1996 edition of Chapter 2);
--- Retained titration, the determination of the range from "1.00% ~ 15.00%" expanded to "1.00% ~ 25.00%"; Added sample terms (see
2.3) and precision terms (see 2.6, chapter 7 of the.1996 edition)
--- Increase inductively coupled plasma atomic emission spectrometry, the determination of the range of 0.010% ~ 15.00% (see Chapter 3);
--- Added test report terms (see Chapter 4).
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. Northwest Nonferrous Metal Research Institute, National Standard (Beijing) Inspection and Certification Co., Ltd., Germany Jena Analytical Instruments Co., Ltd.
Division Beijing Representative Office, Guangdong Industrial Analysis and Testing Center, Central South University School of Chemistry and Chemical Technology, Hunan Entry-Exit Inspection and Quarantine Technology Center, North Korea
Yang Jin of Titanium Industry Co., Ltd.
The main drafters of this section. Sun Baolian, Wang Jinlei, Julie, Li Bo, Pauline, Rowling, Lee Man Chi, Zhang Dian Kai, Chen Ying Chun, Li Tian,
Xiong Xiaoyan, Xu Jieyu, Wang Jin, Lv Wanliang, Sha Deren, Chen Xiaodong, Li Hongzhao, Liu Wei, Deng Feiyue, Liu Jian, Yang Wanbiao, Peng Ding, Li Hongzhao, Liu Wei.
This part replaces the standards previously issued as.
--- GB/T 4698.12-1996.
Sponge titanium, titanium and titanium alloys - Methods for chemical analysis
Part 12. Determination of vanadium content
Ferrous ammonium sulfate titration and inductively coupled plasma
Atomic emission spectrometry
1 Scope
GB/T 4698 provisions of this section sponge titanium, titanium and titanium alloy in the determination of the amount of.
This section applies to the determination of vanadium in titanium sponge, titanium and titanium alloys. Determination of the scope of method one is 1.00% ~ 25.00%; method two is
0.010% ~ 15.00%. When the measurement range is overlapped, method one is arbitration analysis method.
Method 2 ferrous ammonium sulfate titration
2.1 Method summary
The sample is dissolved in sulfuric acid. Vanadium is oxidized with potassium permanganate in a sulfuric acid medium, and in the presence of urea, sodium nitrite is added to reduce excessively high
Potassium manganate, N-phenyl anthranilic acid as an indicator, ammonium ferrous sulfate standard titration titration of vanadium.
2.2 Reagents
Unless otherwise stated, only reagents identified as analytical grade and laboratory grade II water were used in the analysis.
2.2.1 Nitric acid (ρ = 1.42g/L).
2.2.2 Sulfuric acid (1 1).
2.2.3 potassium permanganate solution (5g/L).
2.2.4 urea solution (100g/L).
2.2.5 sodium nitrite solution (10g/L).
2.2.6 Vanadium standard storage solution Weigh 1.785g of vanadium pentoxide (≥99.95%) previously dried at 105 ℃ placed in 250mL burn
Cup, add 50mL sodium hydroxide solution (10g/L), dissolved by heating, acidified with sulfuric acid (2.2.2) and then an excess of 10mL, transferred to 1000mL volume
Bottle, diluted with water to the mark, mix well. 1 mL of this solution contains 1 mg vanadium.
2.2.7 ammonium ferrous sulfate standard titration solution [c (Fe2) ≈0.01mol/L].
2.2.7.1 Preparation Weigh ferric ammonium sulfate 4.0g [Fe (SO4) · (NH4) 2SO4 · 6H2O] 500mL beaker, add.200mL
Sulfuric acid (2.2.2) dissolves. Into a 1000mL volumetric flask, diluted with water to the mark, mix well.
2.2.7.2 Calibration. According to Table 1 Pipette three vanadium standard stock solution (2.2.6) were placed in three 300mL Erlenmeyer flask, the following 2.4.4.1 ~
2.4.4.4. Parallel calibration of ammonium ferrous sulfate standard titration solution (2.2.7) the size of the difference should not exceed 0.10mL, take
The average.
Press (1) Calculate the actual concentration of ammonium ferrous sulfate standard titration solution (2.2.7).
c =
m1
V1 × 0.05094
(1)
In the formula.
c --- ferrous ammonium sulfate standard titration solution (2.2.7) the actual concentration, expressed in moles per liter (mol/L);
m1 --- vanadium quality, in grams (g);
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