SBT™ Direct Cool​

Scanning Brookfield Technique – Low Temperature Pumpability & Gelation Index

Test Methods

ASTM D5133

ASTM D7110


Chinese SH/T0732



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).


Features & Benefits

  • The non-liquid system eliminates flammable bath mediums from laboratory environments.
  • Dual position, independent test sample design.
  • Simple vertical alignment and centering of viscometers.
  • Small bench-top footprint.
  • Self-contained pre-heating: Heats samples to 90°C prior to analysis, while remaining in position.
  • Internal automatic dry air system removes moisture that accumulates during the test.
  • Programmable Temperature Controller maintains bath temperature within ±0.1°C to -45°C.
  • The enhanced SBT™ Automation Package (with laptop) offers the capacity to operate up to four, 2-place, Direct Cool units simultaneously and independently.


Reference Oils

GIR-150   |   Gelation Index Reference Oil

LNP-5   |   Low Temperature Newtonian Oil


For a complete listing of part numbers and available container sizes of SBT™ Direct Cool Reference Oils, review the Tannas Reference Oils & Catalysts Parts List.


Visit our Certified Reference Materials page to download SDS sheets or Oil Certificates.


Parts & Accessories

100750:  Tannas SBT2010 Automation Package

100854:  SBT™ Direct Cool Viscometer (TAV-III)

160022:  SBT™ Direct Cool Stator

160021:  SBT™ Direct Cool Adapter Assembly

160011:  SBT Direct Cool Rotor

100031:  Female Hook

100032:  Male Hook

040013:  LNP-5 Calibration Fluid

030007:  Gelation Index Reference Oil (GIR-150)

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SBT™ Direct Cool

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