For systems where visual inspections suggest heavy accumulation, the DTT is used.
Methods to assess the internal cleanliness of ductwork.
TR6 emphasizes that regular visual assessments are the first line of defense. Technicians use deposit monitoring cards or robotic cameras to inspect hard-to-reach areas of the ductwork.
A specific area of the duct is vacuumed using a specialized filter. The weight of the debris collected is measured.
BESA TR6 provides comprehensive guidelines for the verification of cleanliness in ventilation systems. It outlines the standards required to ensure that air distribution systems do not become a source of contamination or a fire hazard. The document covers several critical areas:
Specific measurements and tests to quantify dust and debris.
How to document findings to prove regulatory compliance. Why the BESA TR6 PDF is Essential
This is one of the most common methods used to assess particulate matter on the internal surfaces of ducts.
