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NPL – National Physical Laboratory

National Physical Laboratory (NPL) – national measurement institute for the United Kingdom.

This organisation is responsible for maintaining the primary measurement standards for the UK.

Featured pressure calibration products

  • 60 psi / 4 bar Low Pressure Calibration Pump – ADT912
  • 70bar/1000psi Benchtop Pneumatic Calibration Pump – ADT917
  • 30 psi absolute portable calibration data logging air pressure gauge with 1/4 NPT male fitting
  • 200bar/3000psi Hand Operated High Air Pressure Test Pump – ADT920

Related Technical Terms

  • BSL – Best Straight Line
  • Compensated Temperature Range
  • Dead Weight Tester
  • PPM – Parts Per Million
  • Primary Pressure Reference Standard
  • Secondary Pressure Standard
  • Span Offset
  • Traceable Calibration
  • TSL – Terminal Straight Line
  • UKAS – The United Kingdom Accreditation Service
  • UKAS Calibration Certificate
  • Zero Offset
  • Zero Tare

Related Product and Application Guides

  • ADT901 low pressure test pump with test gauge and process transmitter Pressure Calibration
  • High Accuracy

Related Help Guides

  • Determining calibration error of Bourdon tube pressure gauge

Related Online Tools

  • Pressure Sensor Calculator
  • Temperature Sensor Calculator
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