GB/T 24208-2009Determination of the naphthalene content of washing oil (English PDF)
洗油萘含量的测定方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
July 8, 2009
Implementation date
April 1, 2010
Scope
GB/T 24208-2009 is the English-translated version of 洗油萘含量的测定方法.
GB/T 24208-2009 is the Chinese standard "Determination of the naphthalene content of washing oil". Its scope clause reads: This standard specifies the content of naphthalene wash oil measurement principle, equipment, sampling, analysis step, the results of the calculation precision.
This standard applies to the determination of oil fractionation naphthalene content of the resulting high temperature coal tar wash. Its clauses include reagents and materials; instruments.
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Document preview — GB/T 24208-2009
National Standard of the People's Republic of China
- ICS
- 71.080.90
- Classification
- G 18
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 4 Reagents and materials
- 5 Instruments
1 Scope
This standard specifies the content of naphthalene wash oil measurement principle, equipment, sampling, analysis step, the results of the calculation precision.
This standard applies to the determination of oil fractionation naphthalene content of the resulting high temperature coal tar wash.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 1999 coking oil products sampling methods
Principle 3
In the column, wash oil, naphthalene and separated from other components, a single point calibration for quantitative determination of naphthalene content.
4 Reagents and materials
4.1 fixative
Api Song L.
4.2 Vector
6201 red diatomite vector, 0.20mm ~ 0.15mm.
4.3 Benzene
AR.
4.4 Xylene
AR.
4.5 naphthalene
AR.
4.6 anhydrous sodium sulfate or anhydrous calcium sulfate
AR.
4.7 Hydrogen
99.9% purity.
4.8
purify air.
5 Instruments
5.1 Gas chromatograph
equipped with a flame ionization detector, the detection limit of not more than 1 × 10-11g/s (n-hexadecane).
5.2
Chromatography Workstation or data processor.
5.3 Column
stainless steel column, length 2m, internal diameter of 4mm.
5.4 micro syringe
10µL, 1µL.
5.5 Analytical balance
dividing the value of 0.1mg.
5.6 Test sieves
Aperture 0.20mm, 0.15mm.
5.7 vacuum
a vacuum of not less than 6 × 10-2Pa.
5.8 volumetric flask
capacity 50mL.
5.9 volumetric flask
capacity 10mL.
5.10 beaker
Capacity 250mL.
5.11 pipette
Volume 1mL, sub-scale value 0.1mL.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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