GB/T 1819.15-2017 English PDFUS$119.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 1819.15-2017: Methods for chemical analysis of tin concentrates -- Part 15: Determination of fluorine content -- The ion-selective electrode method Status: Valid GB/T 1819.15: Historical versions
Basic dataStandard ID: GB/T 1819.15-2017 (GB/T1819.15-2017)Description (Translated English): Methods for chemical analysis of tin concentrates -- Part 15: Determination of fluorine content -- The ion-selective electrode method Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: D41 Classification of International Standard: 73.060 Word Count Estimation: 6,638 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 1819.15-2017: Methods for chemical analysis of tin concentrates -- Part 15: Determination of fluorine content -- The ion-selective electrode method---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 tin concentrates - Part 15. Determination of fluorine content - The ion-selective electrode method ICS 73.060 D41 National Standards of People's Republic of China Replacing GB/T 1819.15-2006 Methods for chemical analysis of tin concentrates Part 15. Determination of fluorine content Ion selective electrode method Methods for chemical analysis of tinconcentrates- Part 15.Determinationoffluorinecontent- 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 ForewordGB/T 1819 "tin concentrate chemical analysis method" is divided into 21 parts. --- Part 1. Determination of moisture thermal drying method; --- Part 2. Determination of tin content potassium iodate titration; --- Part 3. Determination of iron content cerium sulfate titration method; --- Part 4. Determination of lead content by flame atomic absorption spectrometry and Na2 EDTA titration; --- Part 5. Determination of arsenic Arsenic antimony molybdenum blue spectrophotometry and iodometric titration; --- Part 6. Determination of the amount of antimony; malachite green spectrophotometry and flame atomic absorption spectrometry; --- Part 7. Determination of bismuth content by flame atomic absorption spectrometry; --- Part 8. Determination of zinc content by flame atomic absorption spectrometry; --- Part 9. Determination of tungsten oxide content; thiocyanate spectrophotometry; --- Part 10. Determination of sulfur content High-frequency induction furnace combustion infrared absorption method and potassium iodate titration; --- Part 11. Determination of the amount of aluminum oxide chromium azure S spectrophotometry; --- Part 12. Determination of the amount of silica silicon molybdenum blue spectrophotometry and sodium hydroxide titration; --- Part 13. Determination of magnesia, calcium oxide content; Flame atomic absorption spectrometry; --- Part 14. Determination of copper content by flame atomic absorption spectrometry; --- Part 15. Determination of fluorine content ion selective electrode method; --- Part 16. Determination of silver content; Flame atomic absorption spectrometry; --- Part 17. Determination of mercury content; atomic fluorescence spectrometry; --- Part 18. Determination of nickel content by flame atomic absorption spectrometry; --- Part 19. Determination of cobalt content; Flame atomic absorption spectrometry; --- Part 20. Determination of cadmium content by flame atomic absorption spectrometry; --- Part 21. Determination of calcium, magnesium, copper, lead, zinc, arsenic, antimony, bismuth, silver content Inductively coupled plasma atomic emission spectrometry. This section GB/T 1819 Part 15. This section drafted in accordance with GB/T 1.1-2009 given rules. This Part replaces GB/T 1819.15-2006 "Determination of fluorine content of tin concentrate chemical analysis of ion-selective electrode method", This section compared with GB/T 1819.15-2006, the following major changes. --- Symmetric sample has been modified; --- The method of melting the sample was modified by sodium peroxide dissolved sample was changed to sodium hydroxide - sodium dissolved samples; --- Determination of fluorine lower limit from the original "0.020%" revised "0.010%"; --- Modify the precision part; --- Increase the test report terms. 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 section is responsible for the drafting unit. Yunnan Tin Industry Co., Ltd.. This section participates in the drafting unit.Guangdong Provincial Industry Analysis Testing Center, China Inspection and Certification Group Guangxi Co., Ltd., Beijing Mining and Metallurgy Research General Hospital, Exit Inspection and Quarantine Nantong, Ningbo CIQ Inspection and Quarantine Technology Center, Yunnan Tin Group (Holdings) Limited Liability Any company. The main drafters of this section. Xie Hui, Zhang Ti Jiao, Sun Hongying, Huang Puying, Woosi Jing, Huang Shiming, Zhou Hang, Douhuai Zhi, Qian Yan, Shi Honglan, Zhu Xiaoyan, Zhao Ru Lin, Zhang Hongling, Xie Ruisong, Zhang Yongjin, Zhang Ting. This part replaces the previous version of the release. --- GB/T 1819.15-2006. Methods for chemical analysis of tin concentrates Part 15. Determination of fluorine content Ion selective electrode method1 ScopeThis section GB/T 1819 specifies the determination of fluorine content in tin concentrate. This section applies to the determination of fluorine content in tin concentrate. Measuring range. 0.010% ~ 3.00%.2 method summaryThe sample was melted with sodium hydroxide and sodium peroxide, leached with water and filtered. The sodium citrate-potassium nitrate- Triethanolamine medium, with saturated calomel electrode as the reference electrode, fluoride ion selective electrode as the indicator electrode, with the electrode potentiometer fluoride ion concentration.3 reagentUnless otherwise specified, only reagents that are identified as analytically pure and secondary water are used in the analysis. 3.1 Sodium hydroxide. 3.2 Sodium peroxide. 3.3 Nitric acid (1 4). 3.4 Sodium citrate - potassium nitrate solution Weigh 294g of trisodium citrate dihydrate (C6H5Na3O7 · 2H2O), 20g of potassium nitrate dissolved in water And diluted to 1000mL, mix well. 3.5 Triethanolamine buffer solution To 100mL triethanolamine was added 64mL hydrochloric acid (ρ = 1.19g/L), with hydrochloric acid (11) and ammonia (1 1) adjusted to pH = 6.5 ~ 7.0, diluted with water to 500mL, mix. 3.6 Fluoride standard storage solution Weigh 2.2110g sodium fluoride (GR) dried in advance at 120 ℃ 2h in 250mL beaker, add Water completely dissolved, into 1000mL volumetric flask, diluted with water to the mark, mix well. Immediately transferred to a dry plastic bottle to save. This solution 1mL containing 1mg fluorine. 3.7 fluoride standard solution A. Pipette 10.00mL fluorine standard stock solution (3.6) in 100mL volumetric flask, diluted with water to the mark, Mix well. Immediately transferred to dry plastic bottles for storage. 1 mL of this solution contains 100 μg of fluoride. 3.8 fluoride standard solution B. Pipette 10.00mL fluoride standard solution A (3.7) in 100mL volumetric flask, diluted with water until engraved Degree, mix well. Immediately transferred to dry plastic bottles for storage. 1 mL of this solution contains 10 μg of fluoride. 3.9 Phenol red solution Weigh 0.1g phenol red, add 6mL sodium hydroxide (2g/L) solution to dissolve, diluted with water to 50mL, and mix.4 instruments4.1 Fluoride ion selective electrode. The fluorine content in the 1 × 10-6mol/L ~ 1 × 10-1 mol/L, the electrode potential and the concentration of the logarithm was linearly off system. Electrode before use should be 1 × 10-3mol/L of sodium fluoride solution soak 1h, washed with water to the washing liquid potential value is not greater than fluoride The concentration of 1 × 10-6mol/L potential value. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 1819.15-2017_English be delivered?Answer: Upon your order, we will start to translate GB/T 1819.15-2017_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 1819.15-2017_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 1819.15-2017_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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