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GB/T 15076.16-2008 English PDF

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US$189.00 · In stock
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GB/T 15076.16-2008: Methods for chemical analysis of tantalum and niobium -- Determination of sodium and potassium contents
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 15076.16-2008	189	Add to Cart	3 days	Methods for chemical analysis of tantalum and niobium -- Determination of sodium and potassium contents	Valid

Similar standards

GB/T 14635 GB/T 15076.3 GB/T 15076.1 GB/T 15076.7 GB/T 15076.11 GB/T 15076.10

Basic data

Standard ID: GB/T 15076.16-2008 (GB/T15076.16-2008)
Description (Translated English): Methods for chemical analysis of tantalum and niobium -- Determination of sodium and potassium contents
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H14
Classification of International Standard: 77.120.99
Word Count Estimation: 8,831
Date of Issue: 2008-03-31
Date of Implementation: 2008-09-01
Regulation (derived from): National Standard Approval Announcement 2008 No.5 (Total No.118)
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
Summary: This standard specifies the method for the determination of tantalum in sodium content and potassium content. This method is suitable for the determination of tantalum content and potassium content. Measuring range: �� 0. 0005% ~ 0. 020%.

GB/T 15076.16-2008: Methods for chemical analysis of tantalum and niobium -- Determination of sodium and potassium contents

---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 tantalum and niobium. Determination of sodium and potassium contents ICS 77.120.99 H14 National Standards of People's Republic of China Methods for chemical analysis of tantalum and niobium Determination of the amount of sodium and potassium contents of Posted 2008-03-31 2008-09-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 15076 "Methods for chemical analysis of tantalum and niobium" is divided into 16 parts. --- GB/T 15076.1 Methods for chemical analysis of tantalum and niobium, tantalum and niobium - Determination of the amount of --- Determination of GB/T 15076.2 Methods for chemical analysis of tantalum and niobium and tantalum niobium content --- Determination of GB/T 15076.3 chemical analysis of tantalum and niobium copper content --- Determination of GB/T 15076.4 chemical analysis of tantalum and niobium iron content --- GB T 15076.5 Methods for chemical analysis of molybdenum, tantalum, niobium and tungsten contents - / Determination --- GB/T 15076.6 chemical analysis of tantalum and niobium and tantalum silicon content --- GB/T 15076.7 chemical analysis of tantalum and niobium and niobium determination of phosphorus content Determination --- GB/T 15076.8 Methods for chemical analysis of tantalum and niobium carbon and sulfur content --- Determination of GB/T 15076.9 chemical analysis of tantalum and niobium and tantalum iron, chromium, nickel, manganese, titanium, aluminum, copper, tin, lead and zirconium quantity --- Determination of GB/T 15076.10 chemical analysis of tantalum and niobium and niobium iron, nickel, chromium, titanium, zirconium, aluminum and manganese contents --- GB/T 15076.11 chemical analysis of tantalum and niobium and niobium arsenic, antimony, lead, tin and bismuth contents --- Determination of GB/T 15076.12 chemical analysis of tantalum and niobium and tantalum of phosphorus content Determination --- GB/T 15076.13 chemical analysis of tantalum and niobium tantalum nitrogen content --- Determination of GB/T 15076.14 chemical analysis of tantalum and niobium for oxygen Determination --- GB/T 15076.15 chemical analysis of tantalum and niobium amount of hydrogen --- Determination of GB/T 15076.16 Methods for chemical analysis of tantalum and niobium amount of sodium and potassium contents of This is Part 16. This part is proposed by the China Nonferrous Metals Industry Association. The non-ferrous metal part by the National Standardization Technical Committee. Method 1 of this section by the Ningxia Orient Tantalum Industry Co., Ltd., China Nonferrous Metals Industry Institute of Standards Metrology and Quality is responsible for drafting. Method 1 of this section by the Jiujiang non-ferrous metal smelters and participate in the drafting of Conghua Tantalum-Niobium smelter. The main drafters of this Part 1. Hao Hongmei, Liu Gang, Zhang Junfeng, Zhangjiang Feng Huang pairs. The main part of the method validation person. Deng Yanan, the Housing Group. Method 2 of this section by the Jiujiang non-ferrous metal smelter is responsible for drafting. Method 2 of this section by the Beijing Nonferrous Metal Research Institute and participated in the drafting of Conghua Tantalum-Niobium smelter. The main drafters of this section Method 2. Wang Jing, Liu Shiyi, Liu Ying, Huang pairs. The main part of the method validation person. Liu Hong. When measuring ranges overlap with Tier 1 as a method of arbitration. Methods for chemical analysis of tantalum and niobium Determination of the amount of sodium and potassium contents of Method 1 flame atomic absorption spectrometry

1 Scope

This method specifies the method for the determination of tantalum content of sodium and potassium content. This method is applicable to the determination of sodium content and potassium content in tantalum. Measuring range. ≥0.0005% ~ 0.020%.

2 principle of the method

Sample with hydrofluoric acid, nitric acid dissolved in dilute nitric acid medium, aluminum trichloride masking fluorine, atomic absorption spectrometer wavelength 766.5nm, 589.0nm at using air - acetylene flame were measured potassium, sodium absorbance.

3 Reagents

Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled water or equivalent purity. 3.1 Hydrofluoric acid (ρ1.14g/mL), MOS level. Nitrate 3.2 (ρ1.42g/mL), MOS level. 3.3 and Tantalum (Ta content of not less than 99.99%, the potassium content is not more than 0.0001%, a sodium content of not more than 0.0001%). 3.4 aluminum chloride solution (77g/L). Weigh 14g crystalline aluminum chloride (AlCl3 · 6H2O) (potassium content of not more than 0.0001%, containing sodium Not more than 0.0001%) in the 200mL beaker, add 60mL water to dissolve, dilute with water to 100mL. 3.5 Sodium standard stock solution. Weigh accurately 2.5421g reference sodium chloride (without pre-ignition to explosion in a muffle furnace 450 ℃ ~ 500 ℃ in Cracking sound) into 300mL polyethylene beaker, dissolved in water and transferred to 1000mL volumetric flask, dilute to the mark with water, mix, stored in a Plastic bottle. 1mL solution containing 1mg sodium. 3.6 Sodium standard solution. Pipette 20.00mL sodium standard stock solution in 200mL volumetric flask, dilute to the mark with water, shake, stored in a Plastic bottle. This solution 1mL containing 100μg sodium. 3.7 Potassium standard stock solution. Weigh accurately 1.9068g superior grade pure potassium chloride (without pre-ignition in a muffle furnace to 450 ℃ ~ 500 ℃ in Crackles) in 300mL polyethylene beaker, dissolved in water and transferred to 1000mL volumetric flask, dilute to the mark with water, mix, stored in a Plastic bottle. This solution 1mL 1mg containing potassium. 3.8 Potassium standard solution. Pipette 20.00mL potassium standard stock solution in 200mL volumetric flask, dilute to the mark with water, shake, stored in a Plastic bottle. This solution 1mL containing 100μg potassium. 3.9 sodium, potassium mixed standard solution. Pipette respectively sodium standard solution (3.6) and potassium standard solution (3.8) to each 10.00mL 200mL capacity Bottle, diluted with water to the mark, shake, stored in a plastic bottle. This solution 1mL containing 5μg 5μg sodium and potassium.

4 Instrument

Atomic absorption spectrometer, with sodium, potassium hollow cathode lamp. Under optimum working conditions for those who can reach the following indicators can be used. --- Characteristic concentration. In line with the measuring solution matrix solution, characteristic concentration of sodium and potassium is not greater than 0.0186μg/mL, respectively And 0.0355μg/mL. --- Precision. standard solution with the highest concentration of 10 times the absorbance measurements, the standard deviation should not exceed 1.5% of the average absorbance; With the lowest concentration of standard solution (not "zero" concentration of the standard) measuring the absorbance of 10 times, the standard deviation should not exceed the maximum ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 15076.16-2008_English be delivered?

Answer: Upon your order, we will start to translate GB/T 15076.16-2008_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 15076.16-2008_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 15076.16-2008_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. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.