New tests for features of BACnet and refinements to existing tests will be available under an addendum approved for publication at ASHRAE's 2005 Annual Meeting. Addendum a to ASHRAE Standard 135.1-2003, Method of Test For Conformance to BACnet, defines new tests for features of BACnet that have been added since publication of the testing standard as well as refinements based on experience testing BACnet products.
Standard 135.1 defines the steps to test whether a product or application conforms to the BACnet standard and correctly provides the features claimed by the supplier.