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Glass thermometer's unique characteristics of wide range, precision, repeatability, and quick response create a unique challenge for the metrologist who is calibrating these instruments. InnoCal can calibrate spirit-in-glass (SIG) thermometers. Calibrations for glass thermometers use direct comparison in high-stability liquid baths using Precision Reference Thermometers (PRTs) and Standard Platinum Resistance Thermometers (SPRTs) and high precision displays. The glass thermometers are inspected for cracks and liquid-column separations before testing. All measurements reported are traceable to SI units via national standards maintained by NIST and performed in compliance with ANSI Z540, ISO17025, and MIL-STD-45662A. FDA Compliant. InnoCal is accredited to ISO/IEC 17025 by the American Association for Laboratory Accreditation (A2LA) under certificate number 1746.01. This accreditation is your assurance that the calibration is performed in a qualified, controlled laboratory.
Calibrations on glass thermometers are performed using direct comparison in high-stability liquid baths using high-precision PRT’s and SPRT’s and displays. Thermometers are inspected for cracks and liquid-column separations before testing. Measurements are performed at 2 to 4 points between -197 deg C and 550 deg C.
Points are generally selected at the manufacturer’s specified points but customer-specified points can be accommodated. For certificates with more calibrations points, see 17006-05 for 5 to 9 points, and 17006-06 for 10 to 15 points.
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