Standards Australia is currently reviewing revisions to a number of standards covering ductwork, ventilation and air conditioning in buildings.
The revisions under review and are likely to be approved next month.
Revisions to Australian Standard 1668.2 will remove the duplicity around ventilation standards because prior to this update there were two different versions of the standard.
This duplicity created confusion, according to the Australian Duct Manufacturers Association (ADMA).
ADMA chairman Paul Sterling said the Building Code of Australia (BCA) had been referencing the 1995 version of the AS 4254 to meet the requirements of ductwork in buildings.
The 2002 version of the standard wasn't recognised by the BCA which created inconsistencies around natural ventilation.
"The update is long overdue," Sterling said.
"The biggest change to the standard is the separation of requirements for the natural ventilation of buildings and another standard specifically for ventilation in car parks."
The new standard for car parks is known as AS 1668.4 while the standard for mechanical ventilation in buildings is AS 1668.2.
Car park ventilation calculations have been simplified and new technology such as jet fans are recognised for the first time.
A host of other changes relating to indoor air quality, exhaust systems and outdoor airflows are also included in the revisions.
Details of the changes along with revisions to AS 4254 which covers ductwork for air handling systems, are outlined in a special Air Management feature to be published in the October edition of Climate Control News magazine.
In addition to the revisions, the feature details new compliance requirements for manufacturers, particularly for labelling, leak-testing and installation.
Ducting for air conditioners
