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SN/T 3004-2011 English PDF

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SN/T 3004-2011: Determination of mercury content in iron ores. Microwave digestion-cold atomic absorption spectro photometry method
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
SN/T 3004-2011	English	189	Add to Cart	3 days [Need to translate]	Determination of mercury content in iron ores. Microwave digestion-cold atomic absorption spectro photometry method	Valid	SN/T 3004-2011

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Basic data

Standard ID	SN/T 3004-2011 (SN/T3004-2011)
Description (Translated English)	Determination of mercury content in iron ores. Microwave digestion-cold atomic absorption spectro photometry method
Sector / Industry	Commodity Inspection Standard (Recommended)
Classification of Chinese Standard	D31
Classification of International Standard	73.060.10
Word Count Estimation	7,781
Date of Issue	2011-09-09
Date of Implementation	2012-04-01
Quoted Standard	GB/T 6682
Regulation (derived from)	National Quality Inspection (2011) 492; industry standard filing Notice 2012 No. 4 (No. 148 overall)
Issuing agency(ies)	General Administration of Customs
Summary	This standard specifies the mercury analyzer microwave digestion method for the determination of mercury in iron determination. This standard applies to sub-ore mercury content. Method Detection Limit: 0. 4��g/g.

SN/T 3004-2011: Determination of mercury content in iron ores. Microwave digestion-cold atomic absorption spectro photometry method

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Determination of mercury content in iron ores.Microwave digestion-cold atomic absorption spectro photometry method People's Republic of China Entry-Exit Inspection and Quarantine Standards Determination of iron in mercury content Microwave digestion - cold atomic absorption spectrophotometry Issued on. 2011-09-09 2012-04-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard is proposed and managed by the China Certification and Accreditation Regulatory Commission. This standard was drafted. People's Republic of China Shanghai Entry-Exit Inspection and Quarantine Bureau. The main drafters of this standard. Chenzong Hong Sun star, Li Chen. Determination of iron in mercury content Microwave digestion - cold atomic absorption spectrophotometry

1 Scope

This standard specifies the method for Determination of mercury content in iron ore by microwave digestion mercury analyzer method. This standard applies to the determination of iron in mercury content. The detection limit. 0.4μg/g.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. Laboratory use specifications and test methods GB/T 6682 Analysis

3 Method summary

Sample plus aqua regia and hydrofluoric acid is dissolved in the high-pressure airtight container with mercury analyzer at 253.8nm of them at mercury were determined.

4 Reagents

Unless otherwise indicated, the reagents used were of analytical grade water for the two water GB/T 6682 regulations. 4.1 hydrochloride (ρ1.19g/mL). Nitrate 4.2 (ρ1.42g/mL). 4.3 Hydrofluoric acid (ρ1.14g/mL). 4.4 hydrochloride (11). 4.5 nitric acid (11). 4.6 aqua regia (hydrochloric acid. nitric acid = 3). 4.7 aqua regia (11). 4.8 boric acid solution (5%). Weigh 5g of boric acid in a small beaker, was added 10mL of hydrochloric acid (4.4) and a small amount of water, heated to transparency, after cooling, Diluted with deionized water to 100mL. 4.9 stannous chloride solution (10%). Weigh 10g of stannous chloride in a small beaker, add 20mL of hydrochloric acid (4.1), heated to slightly transparent, After cooling, diluted with deionized water to 100mL. 4.10 Mercury standard stock solution (1mg/mL). Weigh accurately high mercury chloride (AR) 0.1354g 10mL dissolved in nitric acid (4.5) and Diluted with water to 100mL. This is equivalent to per mL solution containing 1mg mercury. 4.11 Mercury standard stock solution (10μg/mL). Take 1mL store mercury standard solution (4.10) in 100mL flask, add 10mL Nitric acid (4.5), diluted with water to the mark. This solution was equivalent to 10μg per mL containing mercury. 4.12 Mercury standard solution (0.10μg/mL). Take 1mL store mercury standard solution (4.11) in 100mL flask, add 10mL nitrate Acid (4.5), diluted with water to the mark. This solution corresponds to 0.1μg per mL containing mercury.

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