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ISO 17025 Calibration of Standard Resistors

  • Highest accuracy temperature measurements rely on the best SPRTs, Thermometry Bridges and Standard Resistors. For the standard resistors, it is vital that they have a low calibration uncertainty. Isotech are able to calibrate your primary standards to the lowest of uncertainties.
Resistor valueUncertainty; k = 2
1 Ω<± 0.09 ppm
5 Ω<± 0.09 ppm
10 Ω<± 0.08 ppm
25 Ω<± 0.08 ppm
100 Ω<± 0.08 ppm
400 Ω<± 0.1 ppm
  • All work carried out in our UK ISO 17025 Accredited Laboratory
  • With our priority booking-in service, turnaround times can be as low as one week!
  • We use the Isotech Model 455 Resistor Maintenance Bath and the microK
    ratio bridge with a ratio accuracy of < 20 ppb
  • Popular Models calibrated include Isotech SRA / SRB, Model 836, Model 452, Welwyn AC/DC Resistance Transfer Standards, Wilkins Resistors, WIKA CER6000

Get in touch with us to discuss your calibration needs.

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Accreditation

We are accredited by the UK accreditation body, UKAS to the International Standard, ISO 17025. Our certificates have international legal status.
Accredited for electrical and temperature measurements since 1986.

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