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SN/T 3799-2014: Determination of potassium and sodium in coke ash - Atomic absorption spectrometry
Status: Valid
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| SN/T 3799-2014 | English | 319 |
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Determination of potassium and sodium in coke ash - Atomic absorption spectrometry
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SN/T 3799-2014
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PDF similar to SN/T 3799-2014
Standard similar to SN/T 3799-2014 GB/T 2286 GB/T 4000 YB/T 4494 SN/T 1083.4 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
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(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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