SN/T 3919-2014 English PDF

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SN/T 3919-2014: Determination of water-soluble chloride content in iron ores - Ion chromatography
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 3919-2014	209	Add to Cart	3 days	Determination of water-soluble chloride content in iron ores - Ion chromatography	Valid

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Basic data

Standard ID: SN/T 3919-2014 (SN/T3919-2014)
Description (Translated English): Determination of water-soluble chloride content in iron ores - Ion chromatography
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: D31
Classification of International Standard: 73.060
Word Count Estimation: 8,824
Date of Issue: 4/9/2014
Date of Implementation: 11/1/2014
Quoted Standard: GB/T 6379.2; GB/T 6682; GB/T 6730.1; GB/T 10322.1
Regulation (derived from): State inspection certification (2014) 210
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the ion chromatography method for iron ore in water soluble chlorides. This standard applies to the determination of water soluble chloride content in iron ore, the detection limit: 0.005%.

SN/T 3919-2014: Determination of water-soluble chloride content in iron ores - Ion chromatography

---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.
(Ore in water soluble chloride content - Ion Chromatography) People's Republic of China Entry-Exit Inspection and Quarantine Standards Determination of water soluble chloride content in iron ore Ion Chromatography Issued on. 2014-04-09 2014-11-01 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 National Certification and Accreditation Administration Committee. This standard was drafted. Tianjin People's Republic of China Exit Inspection and Quarantine. The main drafters of this standard. Wangzhen Kun, newly Hood, Ren Hai, Liu Min, Wang Hong, Li Bin, right, Ann Peng Sheng. Determination of water soluble chloride content in iron ore Ion Chromatography

1 Scope

This standard specifies the ion chromatography method for iron ore in water soluble chlorides. This standard applies to the determination of water soluble chloride content in iron ore, the detection limit (in Cl- meter). 0.005%.

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. GB/T 6379.2 measurement methods and results of Accuracy (trueness and precision) - Part 2. Determine the standard measurement method to repeat Of the basic methods of reproduction Laboratory use specifications and test methods GB/T 6682 Analysis GB/T 6730.1 Method for analysis of chemical analysis of iron pre-dried sample preparation GB/T 10322.1 iron ore sampling and sample preparation methods

3 Method summary

Ultrasonic extraction sample water and filtered to remove residual miscellaneous, after centrifuged supernatant by pretreatment cartridge to remove impurities from the use Sub chromatography. Retention time qualitative and quantitative standard curve method.

4 Reagents

Unless otherwise specified, test water line with a water GB/T 6682 regulations. Sodium chloride 4.1 (reference material). 4.2 methanol (excellent pure). 4.3 chlorine standard stock solution (1.00mg/mL). Weigh 1.6480g pre-ignition at 500 ℃ ~ 600 ℃ to constant weight in sodium chloride (4.1), dissolve in water and transferred to 1000mL volumetric flask, dilute with water to volume, and mix. 4.4 chlorine standard solution (100.00μg/mL). accurate Pipette chlorine standard stock solution (4.3) 10.00mL in 100mL flask with water Dilute to volume, and mix.

5 instruments and equipment

5.1 Ion Chromatography. Electrical conductivity detector and hydroxide generator is automatically rinsed. 5.2 Oven. Temperature accuracy 105 ℃ ± 2 ℃. 5.3 balance, a sense of the amount of 0.1mg. 5.4 ultrasonic cleaner. 5.5 centrifuge. speed of not less than 5000r/min. ......

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