ASTM International - ASTM UOP549-81

Sodium in Petroleum Distillates by Flame Emission, Using an Atomic Absorption Spectrophotometer

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Organization: ASTM International
Publication Date: 29 July 2002
Status: historical
Page Count: 6
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.

Document History

January 1, 2009
Sodium in Petroleum Distillates by ICP-OES or AAS
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,...
ASTM UOP549-81
July 29, 2002
Sodium in Petroleum Distillates by Flame Emission, Using an Atomic Absorption Spectrophotometer
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,...
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