ASTM D-130

Detection of Copper Corrosion From Petroleum Products By The Copper Strip Tarnish Test The gasoline specification ASTM D-4814 states that gasoline must pass the ASTM D-130 test with a corrosion rating of "1b" or better before it can be sold. The addition of sweetening additives to fuels which do not meet this specification can often improve the corrosion rating. Addtivie treat rates of 25 to 1000ppm are common. This method (ASTM D-130) can be used to determine whether fuel is corrosive toward copper and copper alloys. If corrosive, the fuel will tend to degrade rapidly in storage systems containing copper, bronze or brass components.

ASTM D-97

Measurement of Pour Point of Petroleum Products The pour point is used to determine the lowest temperatures at which a fuel can be effectively pumped. However, the pour point value can be misleading, especially when it is used to determine the low-temperature handling characteristics of residual fuel oil and other heavy fuels. Low-temperature viscosity measurements are considered more reliable than pour point values for determining the flow properties and pumpability of these oils.