A typical LEV record would include the following:
- A1 Extraction Ltd, contact details.
- Name &: address of Company responsible for the plant
- Location of the LEV plant
- Description of the LEV plant
- Person responsible for LEV plant
- Date of test, previous test and next test date.
- Process/ substance controlled
- Number of extract points to be used at one time
- Examiner name and signature
- Test equipment used and calibration date.
- Fan details and rotation check.
- Dust collector / filter details
- Dust collector/ filter condition.
- Dust collector cleaning mechanism description and condition
- Filter differential pressure
- Dust particulate reading where filtered air is returned to the workshop.
- Explosion relief condition (if applicable)
- Comments on system design and condition of hoods, ducting etc.
- Airflows, duct velocities, duct sizes, air volumes and face velocities where required.
- Test conditions, combinations of dampers open.
- Assessment of system effectiveness.
- Recommendations to improve performance if required.
- Plant layout schematic showing test points.
