National Association of Testing Authorities, Australia
Scope of Accreditation
Downer EDI Works
Scope of Accreditation
ISO/IEC 17025 (2017)
Infrastructure and Asset Integrity
| Service | Product | Determinant | Technique | Procedure | Limitations |
|---|---|---|---|---|---|
| Evaluation of geotechnical and civil construction material - Aggregate properties | Aggregates | Shape | Average least dimension; Flakiness |
AS 1141.15, MR (Qld) Method Q201,AS 1141.20.3 |
|
| Particle size distribution | Sieve analysis; Sieve analysis of material finer than 75 µm |
AS 1141.11.1, AS 1141.12 |
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| Evaluation of geotechnical and civil construction material - Asphalt adhesion and stripping | Asphalts | Binder paste drain-off | Not applicable |
Austroads Method AGPT/T235 |
|
| Degree of particle coating | Not applicable |
AS/NZS 2891.11 |
|||
| Evaluation of geotechnical and civil construction material - Asphalt extraction and grading | Asphalts | Bitumen content and aggregate grading | Reflux |
AS/NZS 2891 3.1, MR (Qld) Methods Q308A |
|
| Evaluation of geotechnical and civil construction material - Asphalt field density | Asphalts | Characteristic values; Density ratio and air voids | Not applicable |
MR (Qld) Methods Q020, MR (Qld) Method Q314 (2020) |
|
| Field density | Nuclear gauge backscatter mode |
MR (Qld) Methods Q306E, MR (Qld) Method NGTM N04, MR (Qld) Method NGTM N05 |
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| Evaluation of geotechnical and civil construction material - Asphalt mechanical properties | Asphalts | Marshall stability and flow | Not applicable |
AS/NZS 2891.5, MR (Qld) Method Q305 |
|
| Evaluation of geotechnical and civil construction material - Asphalt specimen manufacture | Asphalts | Specimen conditioning | Handling and conditioning |
AS/NZS 2891.2.1, MR (Qld) Method Q303A, MR (Qld) Method Q303B |
|
| Evaluation of geotechnical and civil construction material - Asphalt volumetric properties | Asphalts | Binder film thickness; Bulk density; Maximum density; Mix volume ratio density; Voids and density relationship | Mensuration; Presaturation; Silicone sealing; Water displacement; Waxing |
AS/NZS 2891.7.1, AS/NZS 2891.8, AS/NZS 2891.9.1, AS/NZS 2891.9.2, AS/NZS 2891.9.3, MR (Qld) Method Q306C, MR (Qld) Method Q311, MR (Qld) Method Q317, MR (Qld) Method Q318 |
|
| Evaluation of geotechnical and civil construction material - Pavement shape | Road pavements | Surface deviation | Straight edge |
MR (Qld) Method Q712 |
|
| Evaluation of geotechnical and civil construction material - Road pavement surfacing characteristics | Road pavements | Texture depth | Sand patch |
Austroads Method ATM-250 |
|
| Sample collection | Aggregates | Not applicable | Aggregate from a stockpile |
AS 1141.3.1, MR (Qld) Method Q060 |
|
| Asphalts | Not applicable | Extraction of an asphalt core - Dry technique; Extraction of an asphalt core - Wet technique; Uncompacted asphalt |
AS/NZS 2891.1.1, AS 2891.1.2 |
||
| Not applicable | Site selection - Random sampling; Site selection - Random stratified sampling |
AS 1289.1.4.2, MR (Qld) Method Q050 |
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Accreditation No.
21799
Site No.
19061
Print date
19 May 2026