1. Fuel Oil Combustion Problems;Alken-Murray Corp Even-Flo Treatment,1934
2. Standard Test Method for Salts in Crude Oil (Electrometric Method);ASTM D3230,2004
3. Standard Test Methods for Determination of Nickel, Vanadium, Iron, and Sodium in Crude Oils and Residual Fuels by Flame Atomic Absorption Spectrometry;ASTM D5863 00a,2000
4. Standard Test Method for Determination of Trace Elements in Middle Distillate Fuels by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES);ASTM D7111-15a,2015
5. Determination of trace metals in petroleum and petroleum products using an inductively coupled plasma optical emission spectrometer;Brown;Spectrochim. Acta,1983