1.1 This test method covers a spectroscopic procedure for determining the level of suspended water and particulate contamination (haze) in liquid middle distillate fuels including those blended with synthesized hydrocarbons or biofuels.
1.1.1 An ordinal, whole-number, Instrument Haze Rating (IHR) from 1 to 6 and a Haze Clarity Index (HCI) from 50.0 to 100.0 are determined on a test specimen at a temperature of 22.0 °C 6
2.0 °C.
1.1.1.1 The stated precision only applies at this temperature.
1.1.1.2 Fuels analyzed at other test specimen temperatures may not be as precise.
1.2 The values stated in SI units are to be regarded as standard. Other units of measurement included in this standard are defined in Section 3.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ASTM D8148-17 Referenced Document
ASTM D4057 Standard Practice for Manual Sampling of Petroleum and Petroleum Products
ASTM D4175 Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants*, 2023-07-01 Update
ASTM D4176 Standard Test Method for Free Water and Particulate Contamination in Distillate Fuels (Visual Inspection Procedures)
ASTM D4177 Standard Practice for Automatic Sampling of Petroleum and Petroleum Products
ASTM D6300 Standard Practice for Determination of Precision and Bias Data for Use in Test Methods for Petroleum Products and Lubricants
ASTM D8148-17 history
2022ASTM D8148-22 Standard Test Method for Spectroscopic Determination of Haze in Fuels
2017ASTM D8148-17 Standard Test Method for Spectroscopic Determination of Haze in Fuels