Section 80.8 - Sampling methods for gasoline, diesel fuel, fuel additives, and renewable fuels(a)Manual sampling. Manual sampling of tanks and pipelines shall be performed according to the applicable procedures specified in ASTM D4057 (incorporated by reference, see § 80.12 ).(b)Automatic sampling. Automatic sampling of petroleum products in pipelines shall be performed according to the applicable procedures specified in ASTM D4177 (incorporated by reference, see § 80.12 ).(c)Sampling and sample handling for volatility measurement. Samples to be analyzed for Reid Vapor Pressure (RVP) shall be collected and handled according to the applicable procedures specified in ASTM D5842 (incorporated by reference, see § 80.12 ).(d)Sample compositing. Composite samples shall be prepared using the applicable procedures specified in ASTM D5854 (incorporated by reference, see § 80.12 ). 88 FR 44563 , July 12, 2023