Standard Test Method for
Free Water and Particulate Contamination in Distillate Fuels
(Visual Inspection Procedures)1
This standard is issued under the fixed designation D 4176; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of the last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1.1 This test method covers two procedures for estimating
the presence of suspended free water and solid particulate
contamination in distillate fuels having distillation end points
below 400°C and an ASTM color of 5 or less.
1.1.1 Both procedures can be used as field tests at the storage
temperatures, or as laboratory tests at controlled temperatures.
1.1.2 Procedure 1 provides a rapid pass/fail method for
contamination. Procedure 2 provides a gross numerical rating
of haze appearance.
1.2 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
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 and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents
2.1 ASTM Standards:
D 1500 Test Method for ASTM Color of Petroleum Products (ASTM Color Scale)2
D 1744 Test Method for Water in Liquid Petroleum Products by Karl Fischer Reagent3
D 2276 Test Method for Particulate Contaminant in Aviation Fuel by Line Sampling2
D 2709 Test Method for Water and Sediment in Middle
Distillate Fuels by Centrifuge2
D 4057 Practice for Manual Sampling of Petroleum and
D 4860 Test Method for Free Water and Particulate Con
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