EN12021 Compliance Testing
Contamination in compressed air used for breathing is a serious health risk.
The quality of compressed air used in breathing apparatus is specified in the European Standard EN12021:1999 'Respiratory protective devices - Compressed Air for breathing apparatus.'
It is vital that the quality of compressed air used in respiratory applications is in accordance with the required standards to prevent risk to human health and corporate reputation. The requirements detailed in the Standard are summarised as follows:
| Parameter | Requirements |
| Oxygen | 21+/-1% |
| Lubricants Droplets or Mist | <0.5 mg/m3 |
| Odour & Taste | No Significant |
| Carbon dioxide | <500 ml/m3 |
| Carbon monoxide | <15 ml/m3 |
| Pressure dewpoint | -11 Deg C |
The only way to check that your air supply is fit for breathing is by regular testing.
The volume flow and the quality of the compressed breathing air supply should be tested at least every 3 months or whenever a mobile compressor is moved as the intake air is now being drawn in from a new location.
A detailed air quality test record sheet should be completed and reviewed by a reponsible person to assess whether the air quality is fit for purpose.
Download Generic Air Test Report.
The air quality test report should be reviewed in combination with the compressor and air purifier service and maintenance records to provide a complete assessemnt of the breathing air installation.
Any defects in the eqipment or test results should be noted and the equipment should be suitably labelled to record test status. Any defects should be remedied before the equipment is used again and a further air test carried out to ensure that the breathing air supplied is now safe.
All test records should be retained like other business records for at least 5 years.
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