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SN/T 0041.2-2011

Chinese Standard: 'SN/T 0041.2-2011'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusRelated Standard
SN/T 0041.2-2011English159 Add to Cart Days<=3 Method for inspection of PONA of naphtha for export. Part 2: Method for depentanization of gasoline and naphtha Valid SN/T 0041.2-2011
SN/T 0041.2-2011Chinese14 Add to Cart <=1-day [PDF from Chinese Authority, or Standard Committee, or Publishing House]

   

BASIC DATA
Standard ID SN/T 0041.2-2011 (SN/T0041.2-2011)
Description (Translated English) Method for inspection of PONA of naphtha for export. Part 2: Method for depentanization of gasoline and naphtha
Sector / Industry Commodity Inspection Standard (Recommended)
Classification of Chinese Standard E30
Word Count Estimation 6,693
Date of Issue 2011-02-25
Date of Implementation 2011-07-01
Older Standard (superseded by this standard) SN 0042-1992
Quoted Standard GB/T 1884; GB/T 1885
Drafting Organization Liaoning Exit Inspection and Quarantine of the PRC
Administrative Organization National Certification and Accreditation Administration
Regulation (derived from) ?AQSIQ-Inspection [2011] 90
Summary This standard specifies the gasoline, naphtha pentane removal methods. This section applies to the removal of gasoline, naphtha and similar petroleum distillate fractions of pentane and below.

SN/T 0041.2-2011
Method for inspection of PONA of naphtha for export Part 2. Method for depentanization of gasoline and naphtha
ICS
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Replacing SN 0042-1992
PONA naphtha export value test method
Part 2. Gasoline and naphtha depentanizer law
Part 2. Methodfordepentanizationofgasolineandnaphtha
Issued on. 2011-02-25
2011-07-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This section drafted in accordance with GB/T 1.1-2009 given rules.
SN/T 0041 "export naphtha PONA value test method" is divided into four parts.
--- Part 1. General procedures;
--- Part 2. Gasoline and naphtha depentanizer law;
--- Part 3. Determination of Canadian petroleum fraction olefins aromatic content;
--- Part 4. off than spectrophotometric determination saturated hydrocarbon fraction naphthenic.
This section SN/T 0041 "export naphtha PONA value test methods" Part 2.
This Part replaces SN 0042-1992 "export naphtha PONA value test method gasoline and naphtha depentanizer law."
The main difference between this part and SN 0042-1992 follows.
--- The "Summary of Method" to "Method summary".
--- The 4.4 variable transformer section, add the pressure range "0V ~ 240V";
--- Will be No. 1 in the text;
--- To modify the terms of Chapter 9 (see Chapter 9);
--- Adds digit test results "to one decimal place."
This section proposed and managed by the National Certification and Accreditation Administration Committee.
This section was drafted by. People's Republic of China Liaoning Entry-Exit Inspection and Quarantine Bureau.
The main drafters of this section. full Qingxiang, to show filial piety, Wu Jianguo, Lin Xiaomei.
This section previously issued to. SN 0042-1992.
PONA naphtha export value test method
Part 2. Gasoline and naphtha depentanizer law
Gasoline, naphtha, and the like in the presence of petroleum distillates pentane (C5) C5 hydrocarbons and less interference petroleum fractions measured hydrocarbon content
Fixed and should be removed. If required, pentane (C5) and C5 hydrocarbons the following may be detected by other methods.
1 Scope
This section provides gasoline, naphtha, pentane removal methods.
This section applies to the removal of gasoline, naphtha, petroleum fractions and the like pentane and the following fraction.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the edition are not applicable to the present
file. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 1884 Petroleum and liquid petroleum products densitometry (hydrometer method)
GB/T 1885 Petroleum Measurement Tables
3 Method summary
The sample was subjected to distillation 50mL distillate and lighter hydrocarbons and a C5 fraction, fraction I was evaporated to C6 and heavier hydrocarbon fraction. Measure steam distilled over
Sub-volume fraction.
Note. This section is under the specified conditions, and some C5 hydrocarbon fraction lighter than stay in the steam fraction, and some C6 hydrocarbons and heavier fraction is carried to the distillate
Fractions, the sample is generally 2% or less, for this part of the scope of the designated sample is appropriate. However, it should be appreciated that if this portion
The amount expressed as a fraction or steam distillate fractions than distillate fractions will be higher, so this section does not apply to other uses not specified range.
4 Instrument
4.1 depentanizer tester. the following components, as shown in Fig.
--- Distillation column. a glass column with vacuum jacket.
--- The reflux condenser.
--- Light fraction collector.
--- Receiver. 15mL.
4.2 round retort. 100mL, with a 24/40 standard taper interface.
4.3 retort heating mantle. spherical for 100mL retort.
4.4 variable transformer (0V ~ 240V).
4.5 a cold water bath (if there is no cold water for reflux condenser, water can be circulated through the copper coil immersed in an ice water bath).
4.6 cylinder. 50mL, indexing of 1mL.
4.7 Thermometer. internal standard mercury thermometer, 10 ℃ ~ 80 ℃, the index value is 0.5 ℃.
4.8 thermos.200mL.
NOTE. You can use the receiver to accommodate other equipment testing and maintaining acceptable temperatures.
Related standard:   SN/T 0041.5-2015  SN/T 0041.1-2011
Related PDF sample:   GB/T 511-2010  GB/T 259-1988
   
 
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