Standard Test Method for Free Water and Particulate Contamination in Distillate Fuels (Visual Inspection Procedures)

Importancia y uso:

5.1 It has long been the practice to include in fuel specifications a requirement that the fuel be clear and bright and free of visible particulate matter (see Note 1). However, there has been no standard method for making this determination so that practices have differed. This test method provides standard procedures for the test.

Note 1: Clean and bright is sometimes used in place of clear and bright. The meaning is identical.

5.2 Procedure 1 provides a rapid pass/fail method for contamination in a distillate fuel. Procedure 2 provides a gross numerical rating of haze appearance, primarily as a communication tool. Other test methods, including Test Methods D2276, D2709, and D4860, permit quantitative determinations of contaminants. No relationship has been established between Procedure 2 and these quantitative methods.

5.2.1 Test Method D8148 has established a correlating relationship with Procedure 2 appearance rating numbers by reporting a correlating instrument haze rating (IHR) based upon its spectroscopically determined haze clarity index (HCI). Supporting data can be found in RR:D02-1867.5

5.3 Limited laboratory evaluations of samples that have failed this clear and bright test indicate that an experienced tester can detect as little as 40 ppm of free water in the fuel.

Subcomité:

D02.14

Referida por:

D4860-22, D8148-24E01, D6426-22, D6469-24, D8011-19, D2068-24A, D1655-24B, D7618-25, D8076-24, D6615-22, D7261-22, D6824-23, D8275-22, D4814-25, D1655-24B, D6469-24, D6426-22, D4860-22, D1655-24B, D0975-24A, D7261-22, D8386-21, D4176-22E01, D6986-03R20, D8147-24, D7261-22, D7451-21, D0975-24A, D4860-22, D6824-23, D6426-22, D0975-24A, D8070-23, D6824-23, D7566-24D, D4814-25, D4814-25, D7978-24

Volúmen:

05.01

Número ICS:

75.160.20 (Liquid fuels)

Palabras clave:

cleanliness; distillate fuel; free water; particulate contamination; visual inspection; visual ratings;