PURPOSE:

To verify that the airflow direction between areas with pressure difference are acceptable.

• This test should be performed by trained or certified personnel.
• Implementation ISO 14644-3:2005 standards.
• All results are to be recorded on video or photograph.
• Ensure all doors in the room serving by HVAC System tag no. AHU are closed.
• Using a suitable smoke stick/pencil, apply smoke to the higher pressure side and observe the direction of flow of smoke.
• Record the details of all test equipment used in Appendix.

ACCEPTANCE CRITERIA: