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UOP 549-81
Sodium in Petroleum Distillates by Flame Emission, Using an Atomic Absorption Spectrophotometer
STANDARD published on 29.7.2002
The information about the standard:
Designation standards: UOP 549-81
Note: WITHDRAWN
Publication date standards: 29.7.2002
SKU: NS-574808
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: American technical standard
Category: Technical standards UOP
Preview of the standard UOP 549-81
| 1. Scope |
|
This method is for determining sodium in petroleum distillate fractions, No. 2 fuel oil and lighter, over a concentration range of 0.03 ppm to about 1 wt-%. Sodium in samples may result, for example, from entrainment of aqueous droplets from a caustic washing operation or may be present as an oil-soluble salt. Analyses can be made for: (a) total sodium, which includes suspended alkali plus oil-soluble salts, and (b) oil-soluble sodium salts. The sodium content of the heavier distillates, whole crude, or residual oils should be determined by means of a wet-ashing technique, such as described in UOP Method 391. |
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