AS 4964-2004 — Method for the Qualitative Identification of Asbestos in Bulk Samples
The Australian Standard that defines how laboratories identify asbestos in bulk samples using polarised light microscopy.
AS 4964-2004 is the Australian Standard method for qualitative identification of asbestos in bulk samples. It is the technical basis on which NATA-accredited laboratories report whether a sample contains asbestos and, if so, which type (chrysotile, amosite, or crocidolite).
The method is based on polarised light microscopy combined with dispersion staining. It is qualitative — it answers 'is asbestos present, and what type?' rather than 'how much asbestos is present?'.
Following AS 4964 is what allows a lab result to be relied on for compliance purposes. Identification carried out outside the Standard, or by a non-accredited laboratory, generally cannot be used to clear a material as 'asbestos free'.
What this means for you: when AX4 coordinates sample testing, samples are submitted through laboratory pathways accredited to AS 4964 so the result stands up for property, demolition, refurbishment, and workplace decisions.
Disclaimer: this is a plain-English summary, not legal advice. Always refer to the current published Standard.
Disclaimer: this is a plain-English summary, not legal advice. Always refer to the official source and consult a qualified adviser for your specific situation.
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AS 4964 is the technical basis for a defensible 'asbestos / no asbestos' result. AX4 coordinates sampling, testing and reporting so the result stands up for property, demolition and workplace decisions.
- Asbestos testing AdelaideAS 4964-pathway sample collection coordinated by AX4 with analysis by a NATA-accredited laboratory.Learn more
- Asbestos inspection AdelaideOn-site identification, sampling brief and condition assessment before testing.Learn more
- Asbestos survey AdelaideFull survey with documented sampling, lab results and a defensible report.Learn more