ST149 Oil Oxidation Stability Analyzer Measures Fat OSI Induction Period Meets GB ISO AOCS ST149 automatic plant oil oxidation stability index (OSI) is designed and manufactured in strict accordance with GB/T 21121-2007 determination of oxidation stability of animal and vegetable oils (Accelerated oxidation test). It is controlled by a single chip microcomputer and displayed by a liquid crystal LCD. The results are automatically generated and printed. OSI (oxidative stability