THERMOHYDROMETER (49-61 API, ASTM S556HL, NON MERCURY)

ANY OF THESE HYDROMETERS MAY BE FURNISHED WITH A NIST TRACEABLE CERTIFICATE OF CALIBRATION AT EXTRA COST, UPON REQUEST. THIS CERTIFICATE SHOWS ACTUAL DATA AT THREE TEST POINTS AS REQUIRED BY ASTM E-100 (FOR HYDROMETERS) OR THE TEST POINTS REQUIRED BY ASTM E-1 (FOR THERMOMETERS). ACTUAL READINGS ARE RESOLVED TO 1/10 OF THE SMALLEST SCALE DIVISION. THE TEST METHODS AND NIST STANDARDS THAT ARE USED, AS WELL AS UNCERTAINTIES OF MEASUREMENT AND ALL OTHER NECESSARY DATA TO MAINTAIN FULL TRACEABILITY ARE PROVIDED.