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What is LEV Testing?
LEV testing is legally required by employers and others who operate local exhaust ventilation (LEV) systems. The aim is to ensure that LEV systems, which are intended to control substances hazardous to health, continue to operate as originally intended. A system should be able to effectively capture released hazardous airborne substances, remove them from the workplace and safely dispose of them. This then protects the health of the people indoors and outside.
For this purpose legislation requires that LEV systems should be well maintained, thoroughly examined and tested at regular intervals. You should always remember that effective maintenance is essential for the continuing provision of an efficient system.
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Your Legal Requirements
A list of workplace exposure limits can be found in the HSE Environmental Hygiene Guidance Book: EH40/2005 Workplace Exposure limits.
The Control of Substances Hazardous to Health (2002) COSHH Regulation 7, requires that the exposure of employees to substances hazardous to health be either prevented or, where not reasonably practicable, adequately controlled (refer to EH40/2005).
COSHH Regulation 9, requires that any control measure taken to comply with regulation 7 MUST be maintained in an efficient state, in efficient working order and in good repair.
LEV systems should be examined and tested atleast once every 14 months. However, there are minimum frequencies for the examination and testing of LEV plant used in certain processes as detailed by the HSE in publications HSG193, HSG37 and HSG54.
Records of the LEV test results and details of any repairs or alterations to the system must be kept for at least five years.
Failure to comply with the COSHH regulations 2002 puts employees' health at unnecessary risk and can result in criminal prosecution. |
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