Prepared from an equal-volume blend of 5W30, 10W30, 10W40, and 20W50 motor oils. After blending, a precisely weighed amount of the composite is added to a volumetric flask to produce the standard
CAS #: 64742-47-8
Conc. in Solvent and Volume: 50,000 μg/mL in methylene chloride, 1 mL/ampul