ASTM-D4171 › Historical Revision Information
Standard Specification for Fuel System Icing Inhibitors
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This specification covers additives for aviation fuels used to inhibit ice formation in aircraft fuel systems. Three types of fuel system icing inhibitors are provided as follows: type I - ethylene glycol monomethyl ether, type II - anhydrous isopropanol, and type III - diethylene glycol monomethyl ether. The relative density, color, distillation range, non-volatile matter, and odor shall be tested to meet the requirements prescribed. The water properties, heptanes miscibility, acidity, water miscibility, and flash point shall be tested to meet the requirements prescribed.
Scope
1.1 This specification covers additives for aviation fuels (see Specifications D910 and D1655) used to inhibit ice formation in aircraft fuel systems.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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. A1.1.1 This test method measures the purity of fuel system icing inhibitors (Type III). The test results are used to determine if the inhibitor meets the purity requirements listed in Table 2.
Significance and Use
A1.3.1 Fuel system icing inhibitor performance (Type III) is based upon test results using the pure inhibitor in a specific concentration range. Impurities affect inhibitor solubility in the fuel and reduce the effective concentration. Methods are therefore needed to check additive purity to ensure adequate performance in the aircraft.
Keywords
additives; aircraft fuel systems; aviation fuels; fuel system icing inhibitors; ice formation; Additives--petroleum products; Aircraft materials/applications--specifications; Aviation fuels--specifications; Fuel system icing inhibitors; Icing inhibitors; Isopropanol; Isopropyl alcohol; Methoxyethanol; Organic compounds--petroleum products; Petroleum products--specifications; Purity analysis--petroleum products; ICS Number Code 75.160.20 (Liquid fuels)
To find similar documents by ASTM Volume:
05.01 (Petroleum Products and Lubricants (I): D56 - D3710)
05.02 (Petroleum Products and Lubricants (II): D3711 - D6122)
To find similar documents by classification:
75.160.20 (Liquid fuels Including gasoline, diesel, kerosene, etc.)
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Document Number
ASTM-D4171-03(2010)
Revision Level
2003 R10 EDITION
Status
Superseded
Modification Type
Reapproval
Publication Date
July 1, 2010
Document Type
Specification
Page Count
5 pages
Committee Number
D02.J0.04