标准摘要
This test method covers the determination of water with true concentration range from 0.02 % to 5.00 % by mass or volume in crude oils using Procedures A and B and from 0.04 % to 3.75 % by mass or volume for Procedure C. Mercaptan (RSH) and sulfide (S− or H2S) as sulfur are known to interfere with this test method, but at levels of less than 500 μg ⁄g [ppm(m)], the interference from these compounds is insignificant (see Section 6). This test method is intended for use with standard commercially available coulometric Karl Fischer reagent.
英文名称Standard Test Method for Water in Crude Oils by Coulometric Karl Fischer Titration(ASTM D4928)