FISHER TAG SAYBOLT CHROMOMETER COLOR SCALE INDEX INSTRUMENT VINTAGE DOVETAIL - $175 - (Willard, MO)
Fisher Scientific Saybolt ChromometerThe Saybolt Color test is used for quality control and product identification purposes on refined products having an ASTM Color of 0.5 or less. Products in this range include undyed motor and aviation gasolines, jet propulsion fuels, naphthas, kerosene and petroleum waxes. The Saybolt Chromometer consists of a matched set of sample and standard tube assemblies with optical viewer. Compares a sample of the product to be tested against standard color discs under a uniform light source. Reduce column height until the sample field is lighter than the color standard and convert height to Saybolt Color using chart on instrument. Three-position turret on standard tube permits convenient changing of color disc combinations. This Chromometer was last used around 30 years ago at the Frisco, Burlington Northern Railroad Laboratory in Springfield, MO. There are no railroad markings on the Chromometer. The wooden box or cover is made of Maple with dovetail joints. It appears to be all here and in working order but I have no way of testing the Chromometer.
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From ebay.com - 1 month ago