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FUEL SPECIFICATION <br />Natural Gas <br />Part No. A0000641394 <br />Rev. B 4/13/2020 <br />Generac Power Systems, Inc. | P.O. Box 8 | Waukesha, WI 53187 <br />P: (262) 544-4811 © 2020 Generac Power Systems, Inc. All rights reserved. All specifications are subject to change without notice. <br />1 OF 1FUEL SPECIFICATIONGenerac products are designed to run on natural gas and are tested for performance and reliability with clean, dry, pipeline quality natural gas. The properties <br />presented in this standard represent the natural gas used in product testing. The performance and reliability of Generac products using non-conforming fuels <br />are unknown and cannot be guaranteed. <br />Natural gas is, by definition, any gas that occurs organically, but this standard focuses on natural gas that is intended for use as fuel in reciprocating internal <br />combustion engines. This natural gas is generally assumed to have specific properties, but compositional differences and contaminates greatly influence <br />the fuel’s quality and combustion stability. This variation can lead to lower power output, pre-ignition, detonation, and corrosion if the fuel does not meet this <br />standard. This standard identifies an acceptable fuel composition for use in Generac products. <br />Fuel Specifications <br />The fuel used by Generac is clean, dry, pipeline quality natural gas adhering to the following: <br />Component / Property Unit Range <br />Methane % Volume 80 Minimum <br />Ethane % Volume 0-10 <br />Propane % Volume 0-5 <br />Butanes % Volume 0-2 <br />Pentanes and Heavier % Volume 0-0.5 <br />Nitrogen and Other Inerts % Volume 0-3 <br />Carbon Dioxide % Volume 0-3 <br />Total Diluents Gases % Volume 0-5 <br />Hydrogen Sulfide g/100scf (mg/m3)0.25-0.3 (6-7) <br />Total Sulfur g/100scf (mg/m3)5-20 (115-460) <br />Water Vapor lb/MMscf (mg/m3)4-7 (60-110) <br />High Heating Value Btu/scf (kJ/m3)950-1,150 (35,400-42,800) <br />Methane Number MN 80 Minimum <br />Notes: <br /> -The fuel must be free of liquid water and hydrocarbons at delivery temperature and pressure. <br /> -The fuel must be free of particulate matter. <br />Emergency Overview NFPA 704 Hazard Identification System <br />Hazards Information <br />DANGER! <br />EXTREMELY FLAMMABLE GAS - MAY CAUSE FLASH <br />FIRE OR EXPLOSION! <br />High concentrations may exclude oxygen and cause dizziness <br />and suffocation. Contact with pressurized vapor may cause <br />frostbite or freeze burn.1 4 0 <br />Health Hazard 1 (blu) <br />Fire Hazard 4 (red) <br />Reactivity 0 (yel) <br />4 - Severe 3 - Serious 2 - Moderate 1 - Slight 0 - Minimal <br />Docusign Envelope ID: 2F58BEE5-DDBE-42EB-8DFA-5E2508488B04