This specification covers formulating specifications for purchases of aviation gasoline under contract and is intended primarily for use by purchasing agencies. It defines a specific type of lead-free aviation gasoline; however, this specification does not include all gasoline satisfactory for reciprocating aviation engines. It is possible that certain equipment or conditions of use can bring about a wider or require a narrower range of characteristics than what is shown in this specification.1.1 This specification covers formulating specifications for purchases of aviation gasoline under contract and is intended primarily for use by purchasing agencies.1.2 This specification defines a specific type of aviation gasoline that contains no lead. It does not include all gasolines satisfactory for reciprocating aviation engines. Certain equipment or conditions of use may permit a wider, or require a narrower, range of characteristics than is shown by this specification.1.3 This specification, unless otherwise provided, prescribes the required properties of unleaded aviation gasoline at the time and place of delivery.1.4 The current purpose for the fuel specified herein is for certification and testing of an engine and engine components.1.5 The UL94 standard is to be used for engine calibration and FAA certification.1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

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5.1 Some fuel dilution of in-service engine oil is normal under typical operating conditions. However, excessive fuel dilution can lead to decreased performance, premature wear, or sudden engine failure. This test method provides a means of quantifying the level of fuel dilution, allowing the user to take necessary action. This test method does not purport to accurately quantify the specific fuel present in the in-service lubricant samples due to limitations associated with the aging and degradation of the fuel in the crankcase. Rather, quantification of diesel fuel is normalized using a simulated aged fuel.1.1 This test method covers the determination of fuel dilution for in-service engine oil by gas chromatography.1.2 Analysis can be performed directly by this test method without pretreatment or dilution of the sample.1.3 There is no limitation for the determination of the dilution range, provided the amount of sample is within the linear range of the gas chromatograph detector. However, sample dilution can add potential error to the result and may affect the precision obtained as compared to the values presented in Section 14, which were obtained with no dilution.1.4 This test method covers a quantitation range up to 10 % (m/m) for diesel and biodiesel, and up to 5 % (m/m) for gasoline.1.5 The values stated in SI units are to be regarded as standard. Where non-SI units are provided, they are shown in parentheses.1.6 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.1.7 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.

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This specification establishes nationally recognized performance requirements for portable gasoline, kerosene, and diesel fueling systems intended for reuse by the consumer in filling, transport, dispensing, and storage. This specification defines performance requirements for systems that can effectively reduce fuel spillage and emissions when used in accordance with the manufacturer's (marked) warnings, operating instructions, and limitations of use. Permeability, flow rate, and fill level shall conform to the requirements specified. Spout samples shall be subjected to the following tests in order to determine their overall performance: leakage test, operation test, elevated temperature test, bending moment test, cyclic endurance test, pull test, closure test, drop test, immersion test, aging test, xenon arc type light exposure test, and water exposure test.1.1 This specification establishes nationally recognized performance requirements for portable gasoline, kerosene, and diesel fueling systems intended for reuse by the consumer in filling, transport, dispensing, and storage. This specification does not cover single-trip prepackaged containers.1.2 This specification defines performance requirements for systems that can effectively reduce fuel spillage and emissions when used in accordance with the