The Scientific Metrology Department of the Authority’s Metrology Division is responsible for the Metrology Laboratories. It undertakes the calibration of laboratory, medical and other equipment. Three of its laboratories (Temperature, Mass and Pressure) are accredited to ISO/IEC 17025:2005 by DKD of Germany. Table below provides area of measurement and range of equipment calibrated by the Department.

In line with the requirements of the Weights and Measures Decree, the Scientific Metrology Department registers all dealers in weights and measure conducting business in Ghana.

Area of Measurement and Range of Equipment  

Area of Measurement Examples of equipment range
Mass Measurements Laboratories analytical balances, platform,  weighing scales, top loading scales, test weights, and other weighing devices
Flow / Volume Measurements Glassware, Fuel dispensing pumps, gas dispensers and oil decanters
Dimensional / Linear
Micrometers, vernier calipers, measuring tapes of all kinds, sieves etc.
Electrical Measurements Voltmeters, Ammeters, multi-meters, energy/power meters, ohmmeters, phase value equipment.
Pressure and Force Measurements Torques, pressure gauges, compression and tensile testing machines, sphygmomanometers, tyre pressure gauges.
Temperature Measurements Industrial thermometers, Liquid-in-glass thermometers, water bath and Climatic Chambers
Force Measures Torque Wrenches
Time, frequency and Speed Measurements Stop watches, frequency measuring devices,  hand held radars
Medical Instruments/Devices Clinical thermometers, Sphygmomanometers, Weighing scales, Climatic chambers
Other Laboratory Measuring Instruments Hydrometers, hygrometers, pH meters, spectrophotometers, (GC, IR, UV), measuring cylinders, pipettes, burettes, volumetric flasks.

Pattern Approval of Measuring Instruments

The Scientific Metrology Department is responsible for the certification of every new weighing and measuring equipment before it is use in the country by approving its pattern if it conforms to acceptable Standards.  Pattern approval criteria adopted by the Department are generally in accordance with the recommendations of the International Organization for Legal Metrology (OIML).