ASTM D3230
SALT IN CRUDE OIL (ELECTROMETRIC METHOD)
This test method covers the determination of the approximate chloride (salts) concentration in crude oil. The range of concentration covered is 3.5?mg/kg to 500?mg/kg or 1.0?lb/1000 bbl to 150?lb/1000 bbl (PTB) as chloride concentration/volume of crude oil.
This test method measures conductivity in the crude oil due to the presence of common chlorides, such as sodium, calcium, and magnesium. Other conductive materials may also be present in the crude oil.