A versatile Tannas instrument capable of multiple test methods including the ASTM D2983 Brookfield Viscosity using patented SimAir™ Test Cells. The lower the temperature at which this test reaches a critical value of viscosity, the more satisfactory the oil. The SBT determines whether, and to what degree, the oil in the sump will flow in adequate quantities to the oil pump. SBT – Scanning Brookfield Technique™ (ASTM D5133, D7110) – measures low-temperature pumpability and Gelation Index of fresh, sooted, and highly oxidized engine oils by continuously recording viscosity over a broad temperature range. Tannas manufactures the Quantum Oxidation Tester that performs non-liquid, RPVOT oxidation testing according to ASTM D2272 and D2112. RPVOT – Rotating Pressure Vessel Oxidation Test. Now an obsolete oxidation test replaced by RPVOT test methods. Quantum®– The non-liquid, Quantum ® Oxidation Tester manufactured by Tannas for RPVOT (ASTM D2272, D2112, IP229), TFOUT (ASTM D4742), and Grease Oxidation (ASTM D942) testing. Pour Point – The temperature at which an oil loses its flow characteristics due to solidification at low temperatures. Features a small, bench-top footprint with removable test cells. It incorporates patented direct refrigeration technology temperature control and precision. The King Mini-Rotary Viscometer determines borderline pumping temperatures of oils and lubricants without the use of chiller baths or thermoelectric cooling. MRV TP-1 – Refers to the King Mini-Rotary Viscometer – Temperature Profile One. ISO – International Organization for Standardization ILSAC – International Lubricants Standardization and Approval Committee Refers to the TBS Viscometer (ASTM D4683, D6616) by Tannas that measures HTHS Viscosity, and is the referee HTHS instrument against which other viscometers are compared. Gelation Index Temperature – The temperature at which the Gelation Index occurs. Both the Scanning Brookfield and Gelation Index are required tests for passenger car engine oils (ILSAC GF-2, GF-3, GF-4, GF-5, and dexos ® Engine Oil Specifications) as a measurement of an oil’s pumpability after slow cooling. Gelation Index values are derived by analysis of the viscosity-temperature curves produced by the Scanning Brookfield test method, ASTM D5133. The higher the Gelation Index, the more severe the tendency to cause air-binding in the engine. Gelation Index – A measure of the severity of engine oil gelation at low temperatures. For more information about the licensed dexos ® brands, visit the Center for Quality Assurance website.ĭIN – German Institute for Standardization As long as an oil package displays these two markings, the engine oil is an authentic, licensed dexos ® product and is recommended for use in GM vehicles. dexos ® licensed products have the dexos ® icon on the front label and the 11 digit alphanumeric dexos® license number on the back label. European test methods for the petroleum and automotive industries.ĭexos ® – GM Global Propulsion Systems engineers developed the dexos ® engine oil specification to meet the increasing demands of modern engines. Uses patented SimAir® Test Cells that simulate the cooling rate of the air bath.īLB DIN – The King Refrigeration instrument model for the Brookfield Liquid Bath that adheres to the German Institute for Standardization test method DIN 51398.ĬEC – Coordinating European Council. King Refrigeration offers two models of the BLB that operate at a wide range of temperatures. ASTM – American Society for Testing and MaterialsīLB – Brookfield Liquid Bath (ASTM D2983).
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