AWTA Product Testing has gained National Association of Testing Authorities (NATA) accreditation for a Heat Flow Meter Apparatus according to the following scope.
Determination of thermal properties of materials:
Thermal conductivity
-Measurement of thermal conductivity of samples at temperatures ranging from 5 to 650C with a thermal resistance of not less than 0.01 m2KW-1 with least uncertainties of measurement of 8.4% in the range 0.0084 to 0.85 Wm-1K-1 and 0.0084 to 8.40 m2PaW-1, by the methods of ISO 11092 (Textiles) and ASTM F1868
-Measurement of thermal conductivity of samples in the range of 0.01 - 0.2 W/mK at thicknesses of 2 to 200mm with least uncertainties of measurement of 3.9% by the methods of:
-ASTM C518 Steady State Thermal Transmission Properties by means of Heat Flow Meter Apparatus.
-ASTM C653 Determination of Thermal Resistance of Low Density Blanket Type Mineral Fibre Insulation
- AS/NZS 4859.1 Appendix D - Determination of Thermal Resistance of Low-Density Fibrous Insulation using ASTM C653 with variations
- Measurement of physical dimensions of thermal insulation by the methods of: ASTM C167 Thickness and Density of Blanket or Batt Thermal Insulations
- Tests and examinations for compliance with AS/NZS 4859.1 Materials for the thermal insulation of buildings, Clause 2.3.2 for the following material types: Formed shapes, Formed in situ, Low density fibrous materials, and Reflective membrane
-Tests and examinations for compliance with AS/NZS 4859.1 Materials for the thermal insulation of buildings, Section 3 Packaging and labelling
NATA granted accreditation on 22nd November 2013 after an extensive and thorough examination of the laboratory's capabilities.
The Heat Flow Meter Apparatus is a LaserComp Fox600 unit widely considered to be one of the most appropriate, precise and accurate instruments available. The Fox600 was designed in accordance with the requirements of ASTM C518-91 "Standard Test Method for Steady-state Heat Flux Measurements and Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus" and is applicable to those standards quoted in the AWTA Product Testing Laboratory's scope.
Fee & Sample Requirements
-Testing fees are AUD $635.00 (+GST if applicable) for ASTM C518-2010 and AUD $1,540.00 +GST (if applicable) for AS/NZS4859.1-2002
-Sample sizes are 2 specimens each 610mm x 610mm for ASTM C518-2010; and 27m2 or typically 3 unopened commercial packs for AS/NZS4859.1-2002
- Lead time is 20 working days from sample receipt.