Sample Analysis

Hibbs & Associates Pty Ltd operates a NATA Accredited laboratory under “ISO/IEC 17025-2005 General Requirements for the competence of testing and calibration of laboratories“, Accreditation No. 14911.
Accreditation is currently held under the following Classes of test:

7.82 – Workplace environment and hazards
7.82.01 – Asbestos fibre counting
7.82.31 – Asbestos identification, qualitative identification in bulk samples
7.82.86 – Volume measurement (air)
7.84 – Residues and contaminants in constituents of the environment
7.84.31 – Asbestos, qualitative identification in soils Where required, field laboratories can be established to facilitate the rapid turnaround of the results.

Asbestos Fibre Air Monitoring

The measurement of airborne respirable asbestos fibres can be performed to:
- support the findings of qualitative risk assessments; or - to confirm the efficacy of engineering controls during asbestos abatement works.

The assessment of airborne respirable asbestos fibres (sample collection and analysis) is performed using an in-house method based on the Safe Work Australia ‘Guidance Note on the Membrane Filter Method for Estimating Airborne Asbestos Fibres, 2nd Edition [NOHSC: 3003(2005)], April 2005′.

Asbestos Sample Identification

Samples of materials collected during identification surveys are analysed for the presence of asbestos using an in-house method based on:

  • Australian Standard “AS4964-2004 Method for the qualitative identification of asbestos in bulk samples”; and
  • Health and Safety Executive – UK, “Asbestos: The analysts’ guide for sampling, analysis and clearance procedures, Appendix 2: Asbestos in bulk materials: Sampling and identification by polarised light microscopy (PLM), Publication No. HSG248″.

The samples are initially examined by stereo microscopy. Fibrous materials identified under stereo microscopy are extracted and analysed by Polarised Light Microscopy supplemented with Dispersion Staining.
The reporting limit of the method is 0.1g/kg.
This method also includes reporting for synthetic mineral fibres and organic fibres.

Lead-based Paint Systems

The lead content in paint systems can be determined by various analytical systems. The two systems used in-house are:

  • Portable X-ray Fluorescence (XRF) Lead Paint Analyser; and
  • Colourimetric screening test
  • Paint samples are analysed for the presence of lead using a Portable X-Ray Fluorescence (XRF) Spectrum Analyser. The lead content is reported as mass per unit area with the results expressed in mg/cm².

The colourimetric screening test is a chemical swab test. It uses a reagent that produces a distinctive colour change on contact with soluble lead compounds in paint. This is a qualitative technique to assess the general presence / absence of lead.

For further information regarding hazardous materials management contact:
Alan Sparks on 0407 249 231
Michael Fisher on 0418 647 262