ASTM D7467-20,Standard Specification for Diesel Fuel Oil, Biodiesel Blend (B6 to B20).
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ASTM D7467-20 covers fuel blend grades of 6 volume percent to 20 volume percent (%) biodiesel with the remainder being a light middle or middle distillate diesel fuel, collectively designated as B6 to B20. These grades are suitable for various types of diesel engines.
4. Test methods
4. 1 The requirements enumerated in this specification shallbe determined in accordance with the following methods:
4.1.1 Acid Number Test Method D664.
4. 1. 2 Flash Point-Test Method D93, except where othermethods are prescribed by law. For all grades, Test Method D3828 and Test Method D7094 may be used as an alternate with the same limits. Test Method D56 may be used as analternate with the same limits, provided the fash point is below 93°C. This test method will give slightly lower values. In cases of dispute, Test Method D93 shall be used as the referee method.
5. Workmanship
5. 1 The biodiesel blend ( B6 to B20) shall be visually free of undissolved water, sediment, and suspended matter.
5.2 The biodiesel blend (B6 to B20) shall also be free of any adulterant or contaminant that may render the fuel unacceptable for its commonly used applications.