Section 80.101(i) provides a composite sampling and testing option to determine conventional gasoline properties. One provision to this option is that composite samples will need to be prepared as described in § 80.91(d)(4)(iii). Part B of this procedure
See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. The best process would be to avoid the butane adjustment by blending the fuels in such a way that butane loss is avoided. Practically, this means having all fuel samples at or below 32 degrees Fahrenheit before their containers…