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Determination of total volatile sulfur in liquefied petroleum gases and gaseous hydrocarbons by ultraviolet fluorescence
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SN/T 4117-2015
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PDF similar to SN/T 4117-2015
Standard similar to SN/T 4117-2015 GB 19159 GB 11174 SH/T 0680 SN/T 1651
Basic data Standard ID | SN/T 4117-2015 (SN/T4117-2015) | Description (Translated English) | Determination of total volatile sulfur in liquefied petroleum gases and gaseous hydrocarbons by ultraviolet fluorescence | Sector / Industry | Commodity Inspection Standard (Recommended) | Classification of Chinese Standard | E46 | Classification of International Standard | 75.160.30 | Word Count Estimation | 9,927 | Date of Issue | 2015-02-09 | Date of Implementation | 2015-09-01 | Quoted Standard | GB/T 8170; GB/T 12206 | Adopted Standard | ASTM D6667-2010, NEQ | Regulation (derived from) | State-Quality-Inspection-Accreditation [2015] 59 | Issuing agency(ies) | General Administration of Customs | Summary | This standard specifies the liquefied petroleum gas (LPG) and gaseous hydrocarbons of total volatile sulfur content by UV fluorescence photometry. This standard applies to the determination of total sulfur content of the volatile sulfur in the 1 mg/kg ~ 100 mg natural, production process and the final product add/kg between. This standard applies to the determination of halogen content of less than 0.35% (mass fraction) of LPG in total volatile sulfur. |
SN/T 4117-2015: Determination of total volatile sulfur in liquefied petroleum gases and gaseous hydrocarbons by ultraviolet fluorescence ---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.
Determination of total volatile sulfur in liquefied petroleum gases and gaseous hydrocarbons by ultraviolet fluorescence
People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard
Determination of total volatile sulfur in liquefied petroleum gas and gaseous hydrocarbons
Ultraviolet fluorescence spectrophotometry
Determinationoftotal volatilesulfurinliquefiedpetroleumgasesandgaseous
Released on.2015-02-09
2015-09-01 implementation
People's Republic
The General Administration of Quality Supervision, Inspection and Quarantine issued
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
The technical content of this standard and ASTM D6667-10 "Determination of total volatile sulfur content in liquefied petroleum gas and gaseous hydrocarbons
The method of ultraviolet fluorescence method is consistent.
This standard is proposed and managed by the National Certification and Accreditation Administration.
This standard was drafted. Hainan Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China.
The main drafters of this standard. Wang Yuhua, Wang Junhua, Li Zhengzhang, Zhang Yi, Huang Hongxing, Zhao Yajuan.
Determination of total volatile sulfur in liquefied petroleum gas and gaseous hydrocarbons
Ultraviolet fluorescence spectrophotometry
1 Scope
This standard specifies the UV spectrophotometric method for total volatile sulfur content in liquefied petroleum gas (LPG) and gaseous hydrocarbons.
This standard is applicable to the natural, production and processing of sulfur with a sulfur content between 1mg/kg and 100mg/kg.
Determination of total volatile sulfur in the product.
This standard applies to the determination of total volatile sulfur in liquefied petroleum gas with a halogen content of less than 0.35% (mass fraction).
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 8170 Numerical Rounding Rules and Representation and Determination of Limit Values
GB/T 12206 Determination of calorific value and relative density of urban gas
3 Method summary
The gaseous sample is carried into the high temperature combustion furnace via an inert carrier gas, and the sulfur compound in the sample is oxidized to sulfur dioxide and water under oxygen-rich conditions,
The sulfur oxide generates fluorescence under the excitation of ultraviolet light, is converted into an electrical signal output by a fluorescence detector, and the sulfur content in the sample is quantified by an external standard method.
Warning - Liquefied petroleum gas and gaseous hydrocarbon samples are all flammable and explosive.
4 reagents and materials
The reagents used were of analytical grade unless otherwise stated.
4.1 Inert gas, argon or helium, purity ≥99.998%, moisture ≤5mg/kg.
4.2 Oxygen, purity ≥99.75%, moisture ≤5mg/kg.
4.3 Reference materials, using certified sulfur content standards, or using the sulfur compounds and diluents listed in Table 1. In guarantee
Other sulfur compounds and diluents can also be formulated with precision and accuracy.
Table 1 Typical sulfur compounds and thinners
Sulfur compound thinner
Dimethyl sulfide
N-butane
Isobutane
Propylene
Propane
4.4 Quality Control Sample (QC), a stable representative sample of gaseous hydrocarbon or liquefied petroleum gas.
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