AS 4964 Asbestos Inspections: When You Need One and Who Can Do It

AS 4964-2004 is the Australian Standard for the qualitative identification of asbestos in bulk samples. It is the technical reference for how a sample of suspect material is taken, prepared, and analysed by a laboratory. It does not, in itself, define when an inspection should be commissioned, that is a risk-management decision driven by the age and condition of the building.

Australia banned the manufacture, import, and use of all forms of asbestos on 31 December 2003, but materials installed before that date remain in service. Houses built before 1990 are considered high likelihood of containing asbestos containing material (ACM), particularly in vinyl floor tiles, fibre cement sheeting, eaves, fences, and roof corrugated sheeting.

A proper asbestos inspection has two halves: a competent assessor takes representative samples, and a NATA-accredited laboratory analyses them. Some states require licensing for asbestos assessors, particularly for friable asbestos work. Always check that your assessor holds the right credentials for the type of asbestos suspected.

A clearance inspection after asbestos removal is a separate, regulated process and should never be conflated with an identification inspection.