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SN/T 2297.5-2014: Chemical analysis method for the imported and exported gypsum and gypsum products - Part 5: Determination of sulfur content - Gas chromatography-mass
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 2297.5-2014 | English | 209 |
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Chemical analysis method for the imported and exported gypsum and gypsum products - Part 5: Determination of sulfur content - Gas chromatography-mass
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SN/T 2297.5-2014
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Basic data | Standard ID | SN/T 2297.5-2014 (SN/T2297.5-2014) | | Description (Translated English) | Chemical analysis method for the imported and exported gypsum and gypsum products - Part 5: Determination of sulfur content - Gas chromatography-mass | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | Q62 | | Classification of International Standard | 91.100.10 | | Word Count Estimation | 8,820 | | Date of Issue | 4/9/2014 | | Date of Implementation | 11/1/2014 | | Quoted Standard | GB/T 2007.2; GB/T 6379.2 | | Regulation (derived from) | State inspection certification (2014) 210 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the construction gypsum and gypsum products sparse content by gas chromatography - mass spectrometry method. This standard applies to construction gypsum and gypsum products in elemental sulfur content. | SN/T 2297.5-2014: Chemical analysis method for the imported and exported gypsum and gypsum products - Part 5: Determination of sulfur content - Gas chromatography-mass
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(Import and export of gypsum and gypsum products, analytical methods - Part 5. Determination of sulfur content by gas chromatography - mass spectrometry)
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Import and export of gypsum and gypsum products Analysis
Part 5. Determination of sulfur content
Gas chromatography - mass spectrometry
gypsumandgypsumproducts-Part 5. Determinationofsulfurcontent-
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
SN/T 2297 "Importers gypsum and gypsum products analysis" is divided into six parts.
--- Part 1. Determination of strontium content;
--- Part 2. Determination of organic matter;
--- Part 3. Determination of sulfide content;
--- Part 4. Determination of volatile sulfur compounds;
--- Part 5. Determination of sulfur content by gas chromatography - mass spectrometry;
--- Part 6. Determination of elemental sulfur.
This section SN/T 2297 Part 5.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This section proposed and managed by the National Certification and Accreditation Administration Committee.
This section is drafted. Tianjin People's Republic of China Exit Inspection and Quarantine.
The main drafters of this section. Zhou Luo, Su-Mei Wang, Sha Yan, Wei Hongbing, relaxation.
The first part of the Department of Inspection and Quarantine issued by industry standards.
Import and export of gypsum and gypsum products Analysis
Part 5. Determination of sulfur content
Gas chromatography - mass spectrometry
1 Scope
SN/T 2297 provisions of this part of the building gypsum and gypsum products in the sulfur content of gas chromatography - mass spectrometry method.
This section applies to construction gypsum and gypsum products in elemental sulfur content.
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 2007.2 bulk minerals sampling and sample preparation General
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 (GB/T 6379.2-2004, ISO 5725-2.1994, IDT)
3 Method summary
The sample was extracted with acetone in a Soxhlet sulfur (Soxthern) device, the volume was concentrated after extraction, gas chromatography - mass spectrometry
Determination and confirmatory method, external standard.
4 Reagents and materials
4.1 acetone. chromatography.
4.2 anhydrous sodium. AR.
4.3 anhydrous sodium. pure class distinctions.
4.4 Sulfur. pure class distinctions.
4.5 sulfur standard solution. Weigh accurately sulfur (4.4) 0.05g (precise to 0.1mg), acetone (4.1), a period of time, to be weighed
Sulfur (4.4) completely dissolved, the solution was transferred to a 50mL volumetric flask (5.6), dilute to the mark with acetone, shake well, then the solution of concentrated sulfuric
Degree of 1000mg/L. Dispensing sulfur concentration of 1000mg/5.00mL L standard solution in 50mL volumetric flask (5.6) and dilute with acetone
Diluted to the mark, mix, and this solution sulfur concentration of 100mg/L. Using now.
4.6 sulfur standard solution. accurate Pipette respectively appropriate amount of sulfur standard solution (4.5), diluted to a concentration with acetone (4.1) is 0mg/L,
5mg/L, 10mg/L, 15mg/L, 20mg/L of standard working solution. Using now.
5. Apparatus
5.1 Gas chromatography - mass spectrometry (GC-MS). with EI source.
5.2 Soxhlet apparatus.
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