GB/T 40111-2021 Translated English of Chinese Standard (GBT40111-2021): Standard test method for fluorine, chlorine and sulfur in petroleum products - Combustion-ion chromatography [Buy--download True-PDF in 3-second: https://play.google.com/books > Sign in > This BOOK > "3-dots" > Export > Save as "*.pdf"]www.ChineseStandard.net, 30 juil. 2021 - 19 pages This Standard specifies the test method that uses combustion-ion chromatography to determine fluorine, chlorine and sulfur content in petroleum products, interference, instruments and equipment, reagents and materials, sampling, preparation, calibration, test procedures, calculation of results, expression of results, as well as precision and deviation. This Standard is applicable to the determination of fluorine, chlorine and sulfur content in petroleum products of which the boiling point range is 30~380 degree-Celcius and the determination range is 0.30mg/kg~15.00mg/kg, including gasoline, ethanol gasoline, naphtha, distillate, jet fuel, diesel, biodiesel blended fuel. This method can be also used for the samples outside this range, but the precision has not been determined. |
Table des matières
| 3 | |
Scope | 4 |
Terms and definitions | 5 |
Reagents and materials | 10 |
Sampling | 11 |
Preparation | 12 |
Calibration | 13 |
Test steps | 15 |
Result calculation | 16 |
Result expression | 17 |
Bibliography | 19 |
Expressions et termes fréquents
absorbent absorption liquid absorption solution absorption tube Absorption unit according to formula analysis is completed automatic injection carbon deposits Carrier gas inlet chlorine and sulfur chlorine or sulfur Chlorobenzene chromatographic peak area combustion furnace Combustion unit Combustion-ion chromatograph completely cooled computer data processing concentration of fluorine deposits are found determination result Dibenzothiophene different concentrations dilute ensure ethanol flow rate fluorine chlorine sulfur Fluorobenzene fraction of fluorine grade one water high-temperature combustion tube hydrogen peroxide hydrolysis instrument manual interference Ion chromatography unit laboratory liter mg/L mass concentration milligrams milligrams per liter naphtha oxidized and burned oxygen petroleum products potassium hydroxide Preparation Quantitative loop reducing the precision refrigeration module 6.2.3 relative molecular mass sample boat Sample injection samples at different separation column solvent blank standard stock solution standard working solution sulfur content syringe system blank temperature combustion tube test method test results test sample theoretical mass fraction Typical operating conditions Volumetric flasks