UKAS Accredited Mass Calibration Service

Calibration 1

We operate a United Kingdom Accreditation Service (UKAS) accredited mass calibration facility capable of covering the following types of weight calibrations:





Precision Weights

OIML Classes E2 & F1

Stainless Steel

1 mg to 25 kg

click here. 

Test Weights

OIML Class F2

Stainless Steel, plated brass

1 mg to 25 kg

click here. 

Test Weights

OIML Class M1

Brass, cast Iron, Aluminium.

1 mg to 25 kg

click here.

Large Test Weights

(High Mass)

OIML Class M1-2

Cast Iron

25 kg to 1000 kg

click here.

Non-standard weights

We can determine mass of force/ newton weights and other artifacts that weigh between 1 mg and 1000 kg.

click here.

Trade Weights

We can test and crown stamp weights that are used for trade purposes in determining weight for commercial transactions.

click here. 


calibration equipment

Why choose us?

  • We deliver a high quality calibration service to suit all needs, carried out by qualified and experienced calibration technicians.
  • We offer a quick turnaround.
  • You only pay for what you need, (so no all-inclusive calibration and adjustment fees if your weights don’t need adjustment).
  • We have purpose built laboratories which offer a stable environment for testing, taking into consideration factors such as vibration, temperature and air flow.
  • We have forklift and crane facilities that enable us to accommodate delivery and handling of items weighing up to and above 1000 kg.
  • We have over 20 years of experience providing mass calibration for weights used in a wide range of different applications. (Pharmaceutical and chemical industries, precision engineering, aircraft and motor industry, medical, weighing instrument manufacturers and service/repair engineers, food and non-food manufacturers and packers). 
  • Our ISO/IEC 17025 accreditation provides trace-ability to the SI system of units.


You can find more information in our full UKAS Schedule. 

Please also see our UKAS Accreditation certificate 


For guidance on your calibration needs, please see our mass calibration facts page.

We guarantee you:

  • A totally independent, professional and confidential service
  • A competitive price
  • Full trace-ability of all measurements to National Standards
  • A prompt and efficient service.

For our Submission Form and Terms & Conditions please click here.