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GB/T 4698.24-2017: Methods for chemical analysis of titanium sponge, titanium and titanium alloys -- Part 24: Determination of nickel content -- Dimethylglyoxime spectrophotometry and inductively coupled plasma atomic emission spectrometry
Status: Valid GB/T 4698.24: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 4698.24-2017 | English | 199 |
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Methods for chemical analysis of titanium sponge, titanium and titanium alloys -- Part 24: Determination of nickel content -- Dimethylglyoxime spectrophotometry and inductively coupled plasma atomic emission spectrometry
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GB/T 4698.24-2017
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| GB/T 4698.24-1996 | English | 159 |
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Sponge titanium, titanium and titanium alloys. Determination of nickel content. Dimethylglyoxime spectrophotometric method
| Obsolete |
GB/T 4698.24-1996
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Basic data | Standard ID | GB/T 4698.24-2017 (GB/T4698.24-2017) | | Description (Translated English) | Methods for chemical analysis of titanium sponge, titanium and titanium alloys -- Part 24: Determination of nickel content -- Dimethylglyoxime spectrophotometry 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 | 10,164 | | 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 4698.24-2017: Methods for chemical analysis of titanium sponge, titanium and titanium alloys -- Part 24: Determination of nickel content -- Dimethylglyoxime spectrophotometry 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 24. Determination of nickel content - Dimethylglyoxime spectrophotometry and inductively coupled plasma atomic emission spectrometry
ICS 77.120.50
H14
National Standards of People's Republic of China
Replacing GB/T 4698.24-1996
Sponge titanium, titanium and titanium alloys - Methods for chemical analysis
Part 24. Determination of nickel content
Dimethylglyoxime Spectrophotometry and Inductive Coupling
Plasma atomic emission spectrometry
Methods for chemical analysis of titanium compounds, titaniumandtitanium
aloys-Part 24.Determinationofnickelcontent-
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 and 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 24.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part replaces GB/T 4698.24-1996 "titanium sponge, titanium and titanium alloy chemical analysis dimethylglyoxime spectrophotometric determination
Nickel amount. "
This section compared with GB/T 4698.24-1996 main changes are as follows.
--- dimethylglyoxime spectrophotometric determination of the lower limit of 0.20% adjusted to 0.10%; (see Chapter 1, see the.1996 edition of Chapter 1);
--- Removed the "reference standard" (1996 edition of Chapter 2);
--- Increasing the inductively coupled plasma atomic emission spectrometry (see Chapter 3);
--- Added test items (see 2.4 and 3.4);
--- Change the allowable difference to the precision clause (see 2.7 and 3.7, chapter 8 of the.1996 edition);
--- 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. Western Metal Materials Co., Ltd., Bao Titanium Group Co., Ltd., Guangdong Province Industry Analysis and Testing Center, GB
(Beijing) Inspection and Certification Co., Ltd., Hunan Jintian Titanium Technology Co., Ltd., Northwest Nonferrous Metal Research Institute, Yunnan Metallurgical Xinli Titanium Co., Ltd.
Company, Shenyang Nonferrous Metal Processing Co., Ltd., Zunyi Titanium Industry Co., Ltd.
The main drafters of this section. Li 佗, Yang Junhong, stone new layer, Zhai Tongde, Bai Huanhuan, Luo Ce, Li Jian, Liu Leilei, Zhang Danli, Liu Liyuan,
Luo Shaowei, Ma Li Bi, Zhang Xiaoqin, Qu Xinwei, Fan Yong, Cui Qingxiong, Jiang Yongjin, Tian Xiaolong, Yang Guang, Fan Kai.
This part replaces the standards previously issued as.
--- GB/T 4698.24-1996.
Sponge titanium, titanium and titanium alloys - Methods for chemical analysis
Part 24. Determination of nickel content
Dimethylglyoxime Spectrophotometry and Inductive Coupling
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.
This section applies to the determination of nickel sponge titanium, titanium and titanium alloys, the method of a determination of the range of 0.10% to 2.00%, the second method of measurement
Wai .0.010% ~ 2.00%. Method two is the method of arbitration analysis.
2 Method Dimethylglyoxime spectrophotometry
2.1 Method summary
The sample is dissolved with sulfuric acid, the main body of titanium is masked with citric acid, and bromine water is used as oxidant. In the ammonia medium, nickel and diacetyldimethoxime form a red coloration
The absorbance of the compound was measured at a spectrophotometer wavelength of 540 nm.
2.2 Reagents
Unless otherwise specified, only reagents that are identified as analytically pure and laboratory-grade water are used in the analysis.
2.2.1 Nitric acid (p = 1.42 g/mL).
2.2.2 Ammonia (ρ = 0.90 g/mL).
2.2.3 Sulfuric acid (1 1).
2.2.4 saturated bromine water.
2.2.5 citric acid solution (200g/L).
2.2.6 dimethylglyoxime ethanol solution (2g/L). Weigh 0.5g of dimethylglyoxime dissolved in 250mL of ethanol.
2.2.7 nickel standard stock solution Weigh 1.0000g nickel metal (wNi ≥ 99.99%) in 250mL beaker, add 10mL nitric acid
(2.2.1), 10mL water, heated to dissolve. Add 5mL sulfuric acid (ρ = 1.84g/mL), heated to take sulfuric acid smoke, slightly cold, add 30mL
Water, mix, cool. Into a 1000mL volumetric flask, diluted with water to the mark, mix well. 1 mL of this solution contains 1 mg of nickel.
2.2.8 nickel standard solution Pipette 50.00mL nickel standard stock solution (2.2.7) in 500mL volumetric flask, diluted with water to the mark, mixed
uniform. This solution 1 mL contains 100 μg of nickel.
2.3 Instruments
Spectrophotometer.
2.4 sample
In accordance with the promulgated sponge titanium, titanium and titanium alloy take sample preparation standards.
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