GB/T 3260.2-2013 English PDF

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GB/T 3260.2-2013: Methods for chemical analysis of tin -- Part 2: Determination of iron content. 1, 10-phenanthroline photometric method
Status: Valid

GB/T 3260.2: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 3260.2-2013	139	Add to Cart	3 days	Methods for chemical analysis of tin -- Part 2: Determination of iron content. 1, 10-phenanthroline photometric method	Valid
GB/T 3260.2-2000	279	Add to Cart	3 days	Methods for chemical analysis of tin. Determination of irom content	Obsolete
GB/T 3260.2-1982	RFQ	ASK	3 days	Chemical analysis of tin--The o-phenanthroline photometric method for determination of iron	Obsolete

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Basic data

Standard ID: GB/T 3260.2-2013 (GB/T3260.2-2013)
Description (Translated English): Methods for chemical analysis of tin -- Part 2: Determination of iron content. 1, 10-phenanthroline photometric method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H13
Classification of International Standard: 77.120.60
Word Count Estimation: 6,610
Older Standard (superseded by this standard): GB/T 3260.2-2000
Regulation (derived from): National Standards Bulletin No. 25 of 2013
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 tin in iron content. This standard applies to the determination of tin in iron content. Measuring range of 0. 00050% ~ 0. 0600%.

GB/T 3260.2-2013: Methods for chemical analysis of tin -- Part 2: Determination of iron content. 1, 10-phenanthroline photometric 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 Part 2.. Determination of iron content 1, 10-phenanthroline photometric method. ICS 77.120.60 H13 National Standards of People's Republic of China Replacing GB/T 3260.2-2000 Chemical analysis of tin Part 2. Determination of iron content 1,10 phenanthroline spectrophotometry Part 2. Determinationofironcontent- Issued on. 2013-12-17 2014-09-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 3260 "Methods for chemical analysis of tin" is divided into 14 parts. --- Part 1. Determination of copper content - Flame atomic absorption spectrometry; --- Part 2. Determination of iron content - 1,10-phenanthroline spectrophotometry; --- Part 3. Determination of bismuth content of potassium iodide spectrophotometric method and the flame atomic absorption spectrometry; --- Part 4. Determination of lead content by flame atomic absorption spectrometry; --- Part 5. Determination of antimony content - Malachite green spectrophotometry; --- Part 6. Determination of arsenic content - Malachite Green - arsenic heteropolyoxomolybdate spectrophotometry; --- Part 7. Determination of aluminum content electrothermal atomic absorption spectrometry; --- Part 8. Determination of zinc content - Flame atomic absorption spectrometry; --- Part 9. Determination of sulfur content of high frequency induction furnace combustion infrared absorption method; --- Part 10. Determination of cadmium content by flame atomic absorption spectrometry; --- Part 11. Determination of the amount of silver by flame atomic absorption spectrometry; --- Part 12. Determination of nickel content by flame atomic absorption spectrometry; --- Part 13. Determination of cobalt content by flame atomic absorption spectrometry; --- Part 14. Inductively coupled plasma atomic copper, iron, bismuth, lead, antimony, arsenic, aluminum, zinc, cadmium, nickel, cobalt and the amount of emitted light Spectroscopy. This section GB/T 3260 Part 2. This section drafted in accordance with GB/T 1.1-2009 given rules. This part is GB/T 3260.2-2000 "chemical analysis of tin Determination of iron content," the amendment of this section and GB/T 3260.2-2000 compared to the main technical content changes are as follows. --- Citric acid masking tin (Ⅳ); --- 1,10-phenanthroline by the amount of 5mL to 3mL; --- Text format has been modified; --- Increasing the repeatability and reproducibility content. The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized. This section is responsible for drafting unit. Yunnan Tin Group Co., Ltd., Guangxi China Tin Group Co., Ltd. This section is drafted. Yunnan Tin Group Co., Ltd., Guangxi China Tin Group Co., Ltd. Participated in the drafting of this section. Northwest Nonferrous Metal Research Institute, Kunming Metallurgy Research Institute, Beijing General Research Institute of Mining and Metallurgy, Bayuquan Entry-Exit Inspection Inspection and quarantine bureau. The main drafters of this section. Zhao Rulin, Highland, Zhang Xiuhua, Chen Xiaofang, Sunbao Lian, Zhou Kai, Tao Jiang demand, advanced Feng, Li Yan Chao, Liu Wei Li, Li Rong, Yang Yun Kim, Chu Ning, Zhang Hongling, Suai Ping, Wang Jun peaks. This part of the standard replaces the previous editions are. --- GB/T 3260.2-1982; --- GB/T 3260.2-2000. Chemical analysis of tin Part 2. Determination of iron content 1,10 phenanthroline spectrophotometry

1 Scope

GB/T 3260 provisions of this part of the determination of tin in iron content. This section applies to the determination of tin in iron content. Determination of the range of 0.00050% - 0.0600%.

2 Method summary

Samples with hydrochloric acid and hydrogen peroxide dissolved in p-nitrophenol as an indicator, with dilute aqueous ammonia test solution to pH 5 to 6, by adding hydrochloric acid Hydroxylamine reduced iron (Ⅲ), Fe (Ⅱ) with 1,10-phenanthroline to form a red complex in a spectrophotometer at 510nm wavelength absorption measured Luminosity.

3 Reagents

Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled or deionized water or equivalent purity. 3.1 hydrochloric acid (ρ1.19g/mL), pure class distinctions. 3.2 Hydrogen peroxide (30%). 3.3 hydrochloric acid (119). 3.4 ammonia (21). 3.5 citric acid solution (400g/L). 3.6 disodium edetate (by Na2EDTA) solution (25g/L). 3.7 hydroxylamine hydrochloride solution (100g/L). 3.8 sodium thiosulfate solution (200g/L). Store in a brown bottle. 3.9 1,10-phenanthroline solution (2.5g/L). Weigh 0.25g1,10- phenanthroline was added to dissolve 10mL of anhydrous ethanol, diluted with water To 100mL, mix, stored in a brown bottle. 3.10 pairs nitrophenol solution (0.5g/L). 3.11 iron standard stock solution. Weigh 0.1000g metallic iron (wFe≥99.99%), placed in 200mL beaker, covered table dish, add 10mL of hydrochloric acid (3.1), 0.5mL of hydrogen peroxide (3.2), heat gently to dissolve completely, get rid of free chlorine boiled and cooled. Purged water table dish and cup Wall, moved into 1000mL volumetric flask, dilute with water to volume, and mix. This solution 1mL containing 100μg iron. 3.12 Iron standard solution. Pipette 50.00mL iron standard stock solution (3.11) in 500mL flask, add 1mL hydrochloric acid (3.1), Dilute with water to volume, and mix. This solution 1mL containing 10μg iron. Step 4 Analysis 4.1 Sample Table 1 sample was weighed, accurate to 0.0001g. ......

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