Metrology

Metrology is the sciene of measurement. The metrology division of the SLSB is the custodian of the Weight and Measures as enshrined in the Weight and Measures Act No. 5 in Sierra Leone. The National Primary standard are traceable to the DentscharKALIBRIERDIANST (DKD)laboratories in Germany. It undertakes in legal, scientific and industrial metrology towards the development of the National measurement scheme to support Science Industry and commerce. The metrology department has three divisions as follows: Legal Metrology; Industrial Metrology; Scientific Metrology

Scope of Work

  1. Mass Measurements – Weights, balances and weigh-bridges
  2. Flow Measurements – Storage tanks, flow meters etc.
  3. Dimensions/linear measurements – tape rule, metre rule.
  4. Temperature measurements – body thermometer and industrial thermometers.

Legal Metrology Department:

This mandate by the weight and measures act no 5 2010 to verify the weights, measures, weighing and measuring instruments of corporate organisations such as: all oil marketing companies, courier services and few individual set-ups.

It also organises seminars annually for stakeholders to build their capacities for government and related subjects.

Supervision of the use of instruments in Trade is carried out by control inspection visits to premises to ensure that business houses comply with approved and certified instruments. Control of goods involves inspections of accuracy of net contents and standardization of pre-packed commodities and/or sizes of industrial mass consumption items.

Legal Metrology started in 1962 under the Weights and Measures Act No. 22 of 1962 that legalized the use of imperial system. The imperial system was replaced by the Metric System in 2011. All mass, volume and length references were all in the imperial type and housed in 10 square meter room.

The Legal Division focuses on the following:

  • All instruments used in the channel of trade are required to be duly verified, stamped, certified and subsequently authorised by the legal metrology division.
  • Periodical verification is mandatory for every class and type of instruments for use for trade in Sierra Leone.
  • The Pattern Approval of instruments which involves the control of petrol pumps as models approved under the Weights and Measures Act which are subject to initial and subsequent verification.
  • Supervision of the use of instruments in Trade is carried out by control inspection visits to premises to ensure that business houses comply with approved and certified instruments.
  • Control of goods involves inspections of accuracy of net contents and standardization of pre-packed commodities and/or sizes of industrial mass consumption items.

Application:

This dept. Is responsible for the metrology laboratories, it undertakes the calibration of laboratories, medical and other equipments.

Industrial Metrology Department:

Is responsible for the calibration of industrial weights, measures, weighing and measuring in Sierra Leone. Through raising awareness more of SLSB clients in the manufacturing sector are gradually presenting their equipment instruments for calibration.