GB/T 11146-1999
Crude oils--Determination of water--Karl fischer reagent method (English Version)
- Standard No.
- GB/T 11146-1999
- Language
- Chinese, Available in English version
- Release Date
- 1999
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Status
- 2009-10
- Replace By
- GB/T 11146-2009
- Latest
- GB/T 11146-2009
- Scope
- This standard specifies the volumetric titration using Karl Fischer reagent to determine the water content of crude oil. This standard applies to the determination of 0.02% (m/m) to 2% (m/m) water content in crude oil. Sulfur in mercaptans and sulfides (S- or H2S) interferes with this test method. When the sulfur content in these compounds is lower than 500μg/g, there is no obvious interference to the determination. Standard pyridine-containing Karl Fischer reagents or pyridine-free Karl Fischer reagents can be used in this method.
GB/T 11146-1999 history
- 2009 GB/T 11146-2009 Crude petroleum.Determination of water.Coulometric Karl Fischer titration method
- 1999 GB/T 11146-1999 Crude oils--Determination of water--Karl fischer reagent method
