A higher viscosity index indicates a smaller decrease in viscosity as temperature increases, meaning the oil maintains its structure better as temperatures increase. Density, Cold-Crank Simulator (CCS) and Viscosity Index measurements have been made in accordance with ASTM D4052, ASTM D5293 and ASTM D2270 respectively.
#Astm d2270 viscosity index iso#
Calculator for viscosity index (VI) according to ASTM D2270 and ISO 2909. Our rigorous processes ensure reliable delivery of consistent quality base stocks. ASTM D2270 measures viscosity index or the variation in motor oil’s kinematic viscosity between ambient and operating temperatures (40C and 100C). Standard practice for calculating viscosity index from kinematic viscosity at 40 and 100☌. With base oil interchange and viscosity grade read-across capabilities, EHC base stocks offer broad coverage that enables supply chain flexibility and simplified qualification testing requirements.ĮHC base stocks may also be used in industrial and other applications where formulations benefit from increased oxidation stability and higher viscosity index (VI). A number in parentheses indicates the year of last reapproval. These investments allow us to offer formulation and supply-chain flexibility around the world.ĮHC™ base stocks are part of a global Group II/II+ slate as defined within API/ATIEL guidelines for formulation and qualification of automotive and engine oil lubricants. Calculating Viscosity Index from Kinematic Viscosity at 40 C and 100 C1 This standard is issued under the xed designation D2270 the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. 1.1 This practice covers the procedures for calculating the viscosity index of petroleum products, such as lubricating oils, and related materials from their kinematic viscosities at 40 and 100 ° C. In April 2019, a further multibillion-dollar expansion of the integrated manufacturing complex in Singapore was announced, with start-up anticipated in 2025. ASTM D2270-10 Standard Practice for Calculating Viscosity Index From Kinematic Viscosity at 40 and 100☌. We are committed to investing in Group II/II+ products through projects such as the expansion of our Baytown refinery, construction of our Group II/II+ facility in Rotterdam and the recently completed Singapore base stocks refinery expansion that brings enhanced-performance EHC™ base stocks to Asia Pacific.
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