CLEANLINESS VERIFICATION

 CLEANLINESS VERIFICATION
(A) General
Verification of HVAC System cleanliness will be determined after mechanical cleaning and before
the application of any treatment or introduction of any treatment-related substance to the HVAC
system, including antimicrobial agents and coatings.
(B) Visual Inspection
The HVAC system shall be inspected visually to ensure that no visible contaminants are present.
1. If no contaminants are evident through visual inspection, the HVAC system shall
be considered clean; however, the owner reserves the right to further verify
system cleanliness through Surface Comparison Testing or the NADCA vacuum
test specified in the NADCA standards.