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GB/T 4698.18-2017: Methods for chemical analysis of titanium sponge, titanium and titanium alloys -- Part 18: Determination of tin content -- Flame atomic absorption spectrometry
Status: Valid GB/T 4698.18: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 4698.18-2017 | English | 119 |
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Methods for chemical analysis of titanium sponge, titanium and titanium alloys -- Part 18: Determination of tin content -- Flame atomic absorption spectrometry
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GB/T 4698.18-2017
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| GB/T 4698.18-1996 | English | 199 |
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Sponge titanium, titanium and titanium alloys. Determination of magnesium content. Flame atomic absorption spectrometric method
| Obsolete |
GB/T 4698.18-1996
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PDF similar to GB/T 4698.18-2017
Basic data | Standard ID | GB/T 4698.18-2017 (GB/T4698.18-2017) | | Description (Translated English) | Methods for chemical analysis of titanium sponge, titanium and titanium alloys -- Part 18: Determination of tin content -- Flame atomic absorption spectrometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H14 | | Classification of International Standard | 77.120.50 | | Word Count Estimation | 6,655 | | 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 4698.18-2017: Methods for chemical analysis of titanium sponge, titanium and titanium alloys -- Part 18: Determination of tin content -- Flame atomic absorption 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 18. Determination of tin content - Flame atomic absorption spectrometry
ICS 77.120.50
H14
National Standards of People's Republic of China
Replacing GB/T 4698.18-1996
Sponge titanium, titanium and titanium alloys - Methods for chemical analysis
Part 18. Determination of tin content
Flame atomic absorption spectrometry
Methodsforchemicalanalysisoftitaniumsponge, titaniumand
titaniumaloys-Part 18.Determinationoftincontent-
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 4698 "titanium sponge, titanium and titanium alloy chemical analysis method" is divided into 28 parts.
--- 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 18.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part replaces GB/T 4698.18-1996 "titanium sponge, titanium and titanium alloys Determination of tin by flame atomic absorption spectrometry
the amount".
This section compared with GB/T 4698.18-1996 main changes are as follows.
--- Removed the "reference standard" (1996 edition of Chapter 2);
--- Increase the sample terms (see Chapter 5);
--- Increased precision terms (see Chapter 8,.1996 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. Northwest Nonferrous Metal Research Institute, National Standard (Beijing) Inspection and Certification Co., Ltd. Western Metal Materials Co., Ltd.
Division, Shenyang Nonferrous Metal Processing Co., Ltd., Zunyi Titanium Co., Ltd., Zun Bao Titanium Co., Ltd.
The main drafters of this section. Zhou Kai, Sun Baolian, Li Bo, Dong Qi, Liu Lei Lei, Li Tian, Tong Ling, Wang Li, Zhang Bin, Li Ya Min, Tian Xiaolong,
Liu Ping, Luo Lin, Yang Xuexin, Yang re-Jiang.
This part replaces the standards previously issued as.
--- GB/T 4698.18-1996.
Sponge titanium, titanium and titanium alloys - Methods for chemical analysis
Part 18. Determination of tin content
Flame atomic absorption spectrometry
1 Scope
This section GB/T 4698 specifies the determination of tin content in titanium.
This section applies to the determination of tin content in titanium. Measurement range .1.00% ~ 5.00%.
2 method principle
The sample was dissolved with hydrochloric acid - fluoroboric acid, titanium oxide nitrate. Absorbance was measured at 286.4 nm of atomic absorption spectrometer.
3 reagent
Unless otherwise stated, only reagents identified as analytical grade and laboratory grade II water were used in the analysis.
3.1 Titanium (wTi ≥ 99.95%, wSn ≤ 0.001%).
3.2 Nitric acid (p = 1.42 g/mL).
3.3 Fluoroboric acid.
3.4 Hydrochloric acid (1 1).
3.5 tin standard stock solution Weigh 1.0000g metal tin (wSn ≥ 99.99%) in 250mL beaker, add 50mL hydrochloric acid
(3.4), low temperature heating dissolved. Remove and cool to room temperature, add 150mL hydrochloric acid (3.4), transferred to 1000mL volumetric flask, diluted with water
To the mark, mix well. 1 mL of this solution contains 1 mg of tin.
4 instruments
Atomic Absorption Spectrometer, attached tin Hollow cathode lamp.
In the best working conditions of the instrument, anyone who can meet the following indicators can be used.
--- Sensitivity in the sample solution with the same matrix solution, the characteristic concentration of tin should not exceed 4.0μg/mL;
--- Precision. With the highest concentration of standard solution measured 10 times the absorbance, the standard deviation should not exceed 1.0% of the average absorbance,
The lowest concentration of standard solution (not zero standard solution) measured 10 times the absorbance, the standard deviation should not exceed the highest concentration standard
0.5% of the average absorbance of the quasi-solution;
--- Working curve linear. The working curve according to the concentration is divided into five sections, the highest section of the absorbance difference and the lowest section of the absorbance difference
Than, should not be less than 0.7.
5 sample
In accordance with the promulgated sponge titanium, titanium and titanium alloy take sample preparation standards.
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