The Scanning Brookfield Technique (SBT) measures apparent viscosity of fresh, sooted, or highly oxidized engine oils at low temperatures. It determines the susceptibility of engine oils to flow-limited and air-binding responses during slow cooling conditions by providing continuous rheological data over a broad temperature range (+90°C to -45°C).


Test Methods

ASTM D5133
ASTM D7110
Chinese SH/T0732