CLEANLINESS CRITERIA AND TEST PROCEDURES FOR CLEANLINESS LABELLING OF HVAC COMPONENTS

摘要

A new cleanliness classification system for air-handling components and systems was officially launched in Finland at the end of September 2001. This paper describes the test procedure and summarizes all the test methods available for the classification tests and product development as well as the limit values. The main parameters are amount of dust, amount of oil residuals on metal surfaces, and odour emission. The limit value for surface dust is 0.5 g/m~2 in new, uninstalled components and the limit value for oil residuals is 50 mg/m~2 or 300 mg/m~2 depending on the type of the component. There are also some additional test methods, such as a measuring method of mineral fibres released into airflow and a method for measuring the odour threshold of processing oils. Additional tests are required if the component contains fibrous materials or a new type of lubricant is used in the manufacturing process.