ASTM UOP 481 : 2010
Current
The latest, up-to-date edition.
Water in Liquid Hydrocarbons, and Heavy Hydrocarbons by Vaporizer, using Coulometry
Hardcopy , PDF
English
01-03-2010
Important note : Users cannot be edited or removed once added to your Multi user PDF.Describes the water content of liquid hydrocarbons (naphtha, gasoline, kerosene, diesel), or other petroleum products (sulfolane and other solvents) that are liquid at room temperature using coulometric Karl Fisher titration.
| DocumentType |
Standard
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| Pages |
13
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| PublisherName |
American Society for Testing and Materials
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| Status |
Current
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This method is for determining the water content of liquid hydrocarbons (naphtha, gasoline, kerosene, diesel), or other petroleum products (sulfolane and other solvents) that are liquid at room temperature using coulometric Karl Fisher titration. The lower limit of quantitation for the titrator is 10 μg of water. This results in an applicable concentration range for a sample of 10 mg/kg (massppm) to 2 mass-% water.
Heavy hydrocarbons (insoluble oils and waxes) and other hydrocarbons that are viscous or solid at room temperature can be accommodated using a vaporizer for determining dissolved trace water and is applicable to samples over a concentration range of 20 mg/kg to 2 mass-% water.
Samples containing less than 500 mg/kg of water can be collected in prepared dry bottles or syringes as described in the Appendix.
Other applications for moisture and common interferences are discussed in Notes 1 and 2.
| ASTM UOP 730 : 2009 | Total Oxygen in Liquid Hydrocarbons by Pyrolysis |
| ASTM UOP 649 : 2010 | Total Oxygen in Solid, Semi-solid, and High Boiling Point Liquid Hydrocarbons by Pyrolysis |
| ASTM UOP 163 : 2010 | Hydrogen Sulfide and Mercaptan Sulfur in Liquid Hydrocarbons by Potentiometric Titration |
| ASTM UOP 344 : 1987 | Moisture in Hydrocarbon Streams Using an On-Line Analyzer |
| ASTM U 09 : 2013 | Precision Statements in UOP Methods |
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