National Physical Laboratory (NPL) – national measurement institute for the United Kingdom.
This organisation is responsible for maintaining the primary measurement standards for the UK.
Pressure calibration products
- Suction Pressure Calibration Equipment
- Vacuum Range Calibration Equipment
- 30 psi absolute portable calibration data logging air pressure gauge with 1/4 NPT male fitting
- Zero & Span calibration adjustable signal output pressure transducers
Glossary of Calibration 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
Help from Calibration resources
- What is the difference between zero offset and zero drift?
- Determining calibration error of Bourdon tube pressure gauge