SN/T 3799-2014 English PDF

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SN/T 3799-2014: Determination of potassium and sodium in coke ash - Atomic absorption spectrometry
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 3799-2014	319	Add to Cart	3 days	Determination of potassium and sodium in coke ash - Atomic absorption spectrometry	Valid

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Basic data

Standard ID: SN/T 3799-2014 (SN/T3799-2014)
Description (Translated English): Determination of potassium and sodium in coke ash - Atomic absorption spectrometry
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: H32
Classification of International Standard: 75.160.10
Word Count Estimation: 12,160
Quoted Standard: GB/T 602; GB/T 6379.2; GB/T 6682-2008; GB/T 8170
Regulation (derived from): AQSIQ notification issued in 2014 on the first batch of 230 industry-standard entry-exit inspection and quarantine
Issuing agency(ies): General Administration of Customs
Summary: This Standard specifies the use of atomic absorption spectrophotometer coke ash, potassium, sodium content method. This Standard applies to coke ash Determination of potassium and sodium content. Potassium measurement range is 0.2% to 2.0% (mass fraction)

SN/T 3799-2014: Determination of potassium and sodium in coke ash - Atomic absorption spectrometry

---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.
(Coke ash and potassium; sodium - Determination - atomic absorption spectrophotometry) People's Republic of China Entry-Exit Inspection and Quarantine Standards Determination of coke ash, potassium, sodium Atomic absorption spectrophotometry Issued on. 2014-01-13 2014-08-01 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. People's Republic of China Hebei Exit Inspection and Quarantine. The main drafters of this standard. Liu Wenxin, Chen Xuelian, Yang Jun, Zhao Zhengang, Xu Zhibin. Determination of coke ash, potassium, sodium Atomic absorption spectrophotometry Warning. Use of this standard shall have a person experiences regular laboratory work. This standard does not point out all possible security issues. Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.

1 Scope

This standard specifies the use of atomic absorption spectrophotometer coke ash, potassium, sodium content method. This standard applies to coke ash Determination of potassium and sodium content. Potassium measurement range of 0.2% to 2.0% (mass fraction); Determination of sodium Fan Around 0.1% to 1.0% (mass fraction).

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. Preparation of standard solution of GB/T 602 Determination of impurities in chemical reagents 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 6682-2008 Analysis GB/T 8170 repair value expressed about the rules and limit values and judgment

3 Method summary

Sample in a closed microwave digestion apparatus with nitric acid and hydrofluoric acid digestion, using air - acetylene flame atomic absorption spectrophotometer points Do the determination of potassium, sodium absorbance, calculating potassium, sodium content.

4 Reagents and materials

Unless otherwise stated, the use of superior grade pure reagents and ultrapure water in the analysis or in compliance with GB/T 6682-2008 water level requirements. 4.1 Hydrofluoric acid (ρ = 1.15g/mL). 4.2 nitric acid (ρ = 1.42g/mL). 4.3 perchloric acid (ρ = 1.75g / mL). 4.4 Potassium standard stock solution (1000μg/mL). There used directly within the validity period of the certified reference material or press GB/T 602 formulated. 4.5 potassium standard solution (40μg/mL). Pipette 20.00mL potassium standard stock solution (4.4), placed in 500mL flask, diluted with water To the mark, shake, into plastic bottles. 4.6 Sodium standard stock solution (1000μg/mL). There used directly within the validity period of the certified reference material or press GB/T 602 formulated. 4.7 sodium standard solution (40μg/mL). Pipette 20.00mL sodium stock standard solution (4.6), placed in 500mL flask, diluted with water To the mark, shake, into plastic bottles. 4.8 K standard series solution. Pipette respectively 0mL, 2mL, 4mL, 6mL, 8mL, 10mL potassium standard solution (4.5) into 100mL Flask, add nitric acid (4.2) 1mL, diluted with water to the mark, shake, transferred to a plastic bottle. ......

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