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
2,500 bar / 37,500 psi Hydraulic Pressure Calibration Pump – ADT949 - The ADT949 hydraulic ultra-high pressure test pump is a hand operated pressure pump designed to generate pressure up to 37,500 psi (2500 bar).
140 bar / 2,000 psi Hand Operated Air Pressure Test Pump – ADT919A - Generate air pressure up to 140 bar / 2,000 psi one handed.
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
- Determining calibration error of Bourdon tube pressure gauge
- What is the difference between zero offset and zero drift?
