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The VS-9814 Petroleum Colorimeter grades and compares petroleum oils and waxes according to ASTM D1500 specifications.
The ASTM color of petroleum products applies to products having an ASTM color of 0.5 or darker,including lubricating oils,heating oils and diesel fuel oils.
During the usage of the measuring instrument, the sample of petroleum is injected to the colorimetric tube.
Then the chromaticity and the color number are determined after the sample is compared with the standard color sheet.
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