In order to ensure continued compliance with current legislation (e.g. COSHH, CAW) all installations of local exhaust ventilation should be subject to routine periodic examination and test by a competent person

All examination and tests undertaken by ADMAS Limited are carried out by personnel holding the British Occupational Hygiene Society (BOHS) "P601 - Initial Appraisal and Thorough Examination and Testing of Local Exhaust Ventilation Systems" certification. This qualification is the only recognised certification available in the UK which ensures the competency of individuals to undertake such examination and testing.

The through examination and test of local exhaust ventilation systems when carried out by ADMAS Limited follow the procedures outlined in the Health & Safety Executive's publications HS(G)37 : "an introduction to local exhaust ventilation" and HS(G)54 : "the maintenance, examination and testing of local exhaust ventilation".

Test reports clearly and concisely identify all measurement results along with schematic diagrams of individual systems to identify test point locations and recommendations for remedial action deemed necessary to ensure the continued effectiveness of the system

Wherever possible the following methods of investigation / measurement are made on each system:

• Face and/or Capture velocity
• Duct velocity / Static pressure
• Smoke generator / Tindell light beam visual assessment
• Fan / Filter pressures
• Internal inspection of dust filtration plants
• Inspection to determine correct direction of fan rotation