GB/T 11146-2009 (English Version) PDF

Standard No.: GB/T 11146-2009
Language: Chinese, Available in English version
Release Date: 2009
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 11146-2009
Replace: GB/T 11146-1999

Scope: This standard specifies the method for direct determination of water content in crude oil by Karl Fischer coulometric titration. For crude oil whose content of mercaptan sulfur or divalent sulfide ion sulfur or the total amount (mass fraction) of both is in the range of 0.005%~0.05%, the determination range (mass fraction) of this method for water is 0.050%~5.00% ;For the crude oil whose content of mercaptan sulfur or divalent sulfide ion sulfur or the total amount of both (mass fraction) is less than 0.005%, the determination range (mass fraction) of this method for water is 0.020%~5.00%. The application of this standard may involve hazardous substances, operations and equipment, but this standard does not address all safety issues associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and to determine the applicability of limitations prior to use.

GB/T 11146-2009 Referenced Document

GB/T 4756-1998 Petroleum liquids--Manual sampling
ISO 3696:1987 Water for analytical laboratory use; Specification and test methods
ISO 3733:1999 Petroleum products and bituminous materials - Determination of water - Distillation method
ISO 3734:1997 Petroleum products - Determination of water and sediment in residual fuel oils - Centrifuge method
SY/T 5317-2006 Petroleum liquids. automatic pipeline sampling

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