AS 4254.2-2012 Ductwork for air-handling systems in buildings, Part 2: Rigid duct
Standards Australia
Supersedes: AS 4254-2002 Ductwork for air-handling systems in buildings
Draft Designation: DR AS 4254.2This Standard is Part 2 of a series on ductwork for air-handling systems, as follows:
AS
4254 Ductwork for air-handling systems in buildings
4254.1 Part 1: Flexible duct
4254.2 Part 2: Rigid duct
The terms ‘normative’ and ‘informative’ have been used in this Standard to define the
application of the appendix to which they apply. A ‘normative’ appendix is an integral part
of a Standard, whereas an ‘informative’ appendix is only for information and guidance.
Statements expressed in mandatory terms in notes to tables and figures are deemed to be
requirements of this Standard.
Originated as AS 4254-1995. Second edition 2002. AS 4254-2002 revised in part and redesignated as AS 4254.2-2012.
This Standard specifies requirements for materials, construction, and installation, including
some aspects of performance, for ductwork for air-handling systems in buildings and
facilities, including systems designed in accordance with the requirements of
AS/NZS 1668.1 and AS 1668.2.
Contents:
Section 1: Scope And General
Section 2: Duct Construction And Installation
Section 3: External Equipment Installation
Section 4: Functional Criteria
Appendix A: Procedure For Rating Duct Construction Methods Relative To The Construction Tables
Appendix B: ‘J’ And ‘I’ Reinforcements Related To ‘Ei’ Values
Appendix C: Required Loads For Trapeze Angles
Appendix D: Weights And Areas Of Rectangular Galvanized Steel Ducts
Appendix E: Weights And Areas Of Circular Galvanized Steel Ducts
Ventilation and Air conditioning.
Air Conditioning&Mechanical Contractors Association; Australasian Fire and Emergency Service Authorities Council; Australian Building Codes Board; Australian Industry Group; Australian Institute of Refrigeration Air Conditioning and Heating; Chartered Institution of Building Services Engineers; Climate Control Companies Association; Consumer Electronics Suppliers Association; Department of Health and Human Services Tasmania; Engineers Australia; Facility Management Association of Australia; Fire Protection Association Australia; Institute of Refrigeration Heating&Air Conditioning Engineers of New Zealand; Plastics and Chemicals Industries Association; Plumbing Industry Commission; Property Council of Australia.
