PTC Metrology Temperature Calibration Lab ISO Guide 17025 Nist Traceable and A2LA, Accredited Certifications temperature ranges from -5°C to 1000°C RH from 10% to 90%, Pressure calibration from 6-12000 psi

PTC Metrology Temperature Calibration Laboratory
NIST Traceable Standards

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PTC Metrology® provides temperature calibration and certification services for Thermometers, Surface, Air, Immersion and Digital, Liquid-in-Glass, Infrared, PRT's, Thermistors, Thermocouples, and Stem Thermometers. Many quality assurance systems require that calibrated or certified thermometers be used where accurate measurements are of importance. PTC has calibrated thermometers for over 60 years and is now accredited by A2LA to ISO/IEC 17025 and ANSI/NCSL, Z540-1. Please download our scope of our accreditation from A2LA. PTC Metrology also offers calibration services for pressure, humidity and durometers. Please make your selection from the list of certifications below or contact our customer service department.

Surface Thermometers A2LA/NIST Traceable Certification

Several levels of calibration services available from PTC Metrology to conform to your quality system
requirements. PTC recommends 3 point calibration as a minimum on surface thermometers.

Temperature Measuring Devices w/ Readout and Sensors
A2LA/NIST Traceable Certification

Including Thermometers with Probes or Stems, Readouts with Sensors or Sensors Only PRT's , RTD's, Thermistors, Thermocouples & Probes

Bimetal Analog and Digital Stem Thermometers

Stainless Steel Stem Thermometers Bath Temperatures from -75°C to 300°C

Liquid in Glass Thermometers A2LA/NIST Traceable Certification

Including ASTM Liquid In Glass Thermometers

Infrared Thermometers, Black Body A2LA/NIST Traceable Certification

Infrared temperature calibration from 20°C to1000°C Black Body upto1200°C

Air Immersion Certification A2LA/NIST Traceable Certification

Environmental Thermometers, Data Loggers and Recording Thermometers
(without probes) PTC Models 616, 618, 815 and 818 series.

Tech Note on ASTM Thermometers

PTC Metrology® will examine and calibrate your ASTM Thermometer against NIST traceable standards at temperature points specified by ASTM E1 Table 1. The thermometers will be calibrated at the specified temperature in accordance with Test Method E-77. PTC is accredited by A2LA to ISO/IEC 17025 and ANSI/NCSL Z540-1. Please contact PTC us for pricing .

Selecting Temperature Points

To assist you in choosing test points, please refer to ASTM E-77 and NIST recommendations.

1. A minimum of three temperatures should be calibrated, generally low, medium and high on the scale.

2. There should be no more than 100 graduations between any two calibration temperatures. If a thermometer is calibrated every 100 divisions, the user may interpolate intermediary corrections with a precision of ± 1/2° scale division (ASTME-77) .

3. If the temperatures used by the manufacturer for scale placement are known, the temperatures used for calibration should correspond. This will assure linearity of spacing between the calibrated points, therefore allowing the user to interpolate intermediate values.

Recall Notification

PTC Metrology® will notify you by email when your instrument is due for recalibration, in accordance with the period of validity that your quality system specifies. Please register your instrument today.

A2LA Scope of Accreditation PTC Metrology

Laboratory Test Equipment