Appendix D: Legionella Testing Protocols
- Fig 1: Cooling Tower Test Protocol, Normal Mode
- Fig 2: Open Water System Test Protocol, Normal Mode
- Fig 3: Humidifier Test Protocol, Normal Mode
- Fig 4: Hot Water Systems Test Protocol, Normal Mode
Definitions
- NLPL:
- Non-Legionella Pneumophila Legionella
- TBC:
- Total bacteria count
- CFU:
- Colony Forming Units
- LPTOT:
- Legionella Pneumophila (total all serogroups)
- LPSG1:
- Legionella Pneumophila Serogroup 1
- Culture Test:
- Legionella bacterial culture test in accordance with ISO 11731
- CFU/ml:
- Colony Forming Units per millilitre
Fig 1: Cooling Tower Test Protocol, Normal Mode
Image Description
Figure 1 describes the minimum bacterial testing and frequency requirements for cooling towers during normal operation and the required actions based on the testing results. For more information, please consult clauses 3.5.5, 3.5.6 and 3.5.7.
Fig 2: Open Water System Test Protocol, Normal Mode
Image Description
Figure 2 describes the minimum bacterial testing requirements for open water systems during normal operation and the required actions based on the testing results. For more information, please consult clauses 4.4.5, 4.4.6 and 4.4.
Fig 3: Humidifier Test Protocol, Normal Mode
Image Description
Figure 3 describes the minimum bacterial testing requirements for humidifiers during normal operation and the required actions based on the testing results. For more information, please consult clauses 5.3.8 and 5.3.9.
Fig 4: Hot Water Systems Test Protocol, Normal Mode
Image Description
Figure 4 describes the minimum bacterial testing requirements for domestic hot water systems during normal operation and the required actions based on the testing results. For more information, please consult clauses 6.4.19 and 6.4.20.
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