GB/T 22662.5-2008 English PDF

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GB/T 22662.5-2008: Chemical analysis methods of potassium fluotitanate -- Part 5: Determination of calcium content -- Flame atomic absorption spectrometric method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 22662.5-2008	139	Add to Cart	3 days	Chemical analysis methods of potassium fluotitanate -- Part 5: Determination of calcium content -- Flame atomic absorption spectrometric method	Valid

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Basic data

Standard ID: GB/T 22662.5-2008 (GB/T22662.5-2008)
Description (Translated English): Chemical analysis methods of potassium fluotitanate -- Part 5: Determination of calcium content -- Flame atomic absorption spectrometric method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H61
Classification of International Standard: 77.120.10
Word Count Estimation: 6,664
Date of Issue: 2008-12-29
Date of Implementation: 2009-11-01
Quoted Standard: GB/T 22662.1-2008
Regulation (derived from): National Standard Approval Announcement 2008 No.23 (Total No.136)
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 calcium fluoride, potassium titanium content. This section applies to the determination of calcium, potassium titanium fluoride content. Measuring range: �� 0. 5%.

GB/T 22662.5-2008: Chemical analysis methods of potassium fluotitanate -- Part 5: Determination of calcium content -- Flame atomic absorption spectrometric 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.
Chemical analysis methods of potassium fluotitanate Part 5. Determiantion of calcium content Flame atomic absorption spectrometric method ICS 77.120.10 H61 National Standards of People's Republic of China Potassium titanate fluorine chemical analysis Part 5. Determination of calcium content Flame Atomic Absorption Spectrometry Posted 2008-12-29 2009-11-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 22662 "potassium titanate fluorine chemical analysis method" is divided into nine sections. --- Part 1. Preparation and storage of test samples; --- Part 2. Determination of the weight of water in the wet method; --- Part 3. Determination of fluorine potassium titanate ammonium ferric sulfate volumetric method; --- Part 4. Determination of silicon content - Molybdenum blue spectrophotometric method; --- Part 5. Determination of calcium content by flame atomic absorption spectrometry; --- Part 6. Determination of iron content by flame atomic absorption spectrometry; --- Part 7. Determination of lead content by flame atomic absorption spectrometry; --- Part 8. Determination of the chlorine content of mercuric nitrate volumetric method; --- Part 9. Determination of phosphorus pentoxide content - Molybdenum blue spectrophotometric method. This is Part 5 GB/T 22662 of. This part is proposed by the China Nonferrous Metals Industry Association. The non-ferrous metal part by the National Standardization Technical Committee. This section is drafted. Fluoride Chemicals Co., Ltd. Participated in the drafting of this section. Hunan Nonferrous fluorine chemical limited liability company, Aluminum Corporation of China Zhengzhou Research Institute, Hengyang City State Friends of Chemical Technology Co., Ltd. The main drafters of this section. Xue Xu Jin, Shi Xiuhua, Vicky teacher, Li Yongqiang, BU Law See Liu Tsz Jun, Zhu Liang, Li Zhijian, Bai Xianghua, Shin Ji flowers, Liu Zhihong Huang Ju in particular, Liu Min. Potassium titanate fluorine chemical analysis Part 5. Determination of calcium content Flame Atomic Absorption Spectrometry

1 Scope

This section GB/T 22662 specifies the method for the determination of fluorine content of calcium and potassium titanate. This section applies to the determination of fluorine content of calcium and potassium titanate. Measuring range. ≤0.5%.

2 Normative references

The following documents contain provisions which, through reference GB/T 22662 in this section constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 22662.1-2008 fluorine potassium titanate chemical analysis methods - Part 1. Preparation and storage of test samples

3 Method summary

Sample with nitric acid, perchloric acid decomposition, the pH was adjusted with ammonia, separating titanium, in a 1% hydrochloric acid medium, lanthanum chloride as release agents, in Atomic absorption spectrometer at a wavelength of 422.7nm, air - acetylene flame measured calcium content.

4 Reagents

4.1 perchloric acid. ρ1.67g/mL. 4.2 HCl. 1 + 1. Nitrate 4.3. ρ1.42g/mL. Ammonia 4.4. 1 + 1. 4.5 Methyl red indicator. 0.4g/L. 4.6 lanthanum chloride solution. 100g/L. Weigh 25.00g of lanthanum chloride heptahydrate in a beaker, add 150mL water, dissolved by heating and then diluted to 250mL flask, shake, spare. 4.7 Calcium standard stock solution. Weigh accurately 1.2486g pre-drying at 110 ℃ and cooled in the dryer baseline calcium carbonate placed 250mL beaker, covered with a watch glass, was added 50mL of water, add 10mL of hydrochloric acid (4.2) micro heat, until the reaction is complete, cool, moved 500mL volumetric flask, dilute with water to volume, and mix. This solution 1mL containing 1.0000mg calcium. 4.8 Calcium standard solution. Pipette 25.00mL calcium standard stock solution (4.7) in 500mL volumetric flask, dilute to the mark, mix, This solution 1mL containing 0.05mg calcium. 5. Apparatus 5.1 platinum dish. diameter 80mm, high 35mm. 5.2 Atomic absorption spectrometer, with a calcium hollow cathode lamp.

6 Sample

The specimen shall comply with GB/T 22662.1 requirements in 3.3. ......

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