National Association of Testing Authorities, Australia
Scope of Accreditation
Topcoat Asphalt Contractors Pty Ltd
Scope of Accreditation
ISO/IEC 17025 (2017)
Infrastructure and Asset Integrity
Service | Product | Determinant | Technique | Procedure | Limitations |
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Evaluation of geotechnical and civil construction material - Aggregate contaminants | Aggregates | Coarse aggregate quality | Visual comparison |
AS 1141.30.1, RC (Vic) Method 372.01 |
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Weak particles contaminants | Sieve analysis |
AS 1141.32 |
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Evaluation of geotechnical and civil construction material - Aggregate properties | Aggregates | Particle size distribution | Sieve analysis; Sieve analysis of material finer than 75 µm |
AS 1141.11.1, AS 1141.12, RC (Vic) Method 375.11,RC (Vic) Method 375.12 |
|
Particle density of fine aggregate | Weighing-in-water |
AS 1141.5 |
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Shape | Average least dimension; Flakiness; Proportional calliper |
AS 1141.14, AS 1141.15, AS 1141.20.1, AS 1141.20.2, AS 1141.20.3 |
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Water absorption of fine aggregate | Weighing-in-water |
AS 1141.5 |
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Particle density of coarse aggregate | Weighing-in-water |
AS 1141.6.1 |
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Bulk density | Compacted; Uncompacted |
AS 1141.4 |
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Water absorption of coarse aggregate | Weighing-in-water |
AS 1141.6.1 |
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Particle density of coarse aggregate | Pycnometer |
AS 1141.6.2 |
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Evaluation of geotechnical and civil construction material - Aggregate soundness | Aggregates | Soundness | Degradation factor on fine aggregate |
AS 1141.25.3, RC (Vic) Method 370.05 |
|
Evaluation of geotechnical and civil construction material - Soil classification | Soils | Liquid limit | Casagrande four point; Casagrande one point |
AS 1289.3.1.1, AS 1289.3.1.2 |
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Plasticity index | Casagrande |
AS 1289.3.3.1 |
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Sieve analysis | Not applicable | AS 1289.3.6.1 | |||
Moisture content | Drying oven |
AS 1289.2.1.1 |
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Plastic limit | Not applicable |
AS 1289.3.2.1 |
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Linear shrinkage | Not applicable |
AS 1289.3.4.1 |
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Evaluation of geotechnical and civil construction material - Soil compaction characteristics | Soils | Dry density/moisture content relationship | Modified compactive effort; Standard compactive effort |
AS 1289.5.1.1, AS 1289.5.2.1 |
|
Evaluation of geotechnical and civil construction material - Soil pre-treatment | Soils | Soil pre-treatment | Not applicable |
AS 1289.1.1 |
|
Sample collection | Aggregates | Not applicable | Aggregate from a stockpile | AS 1141.3.1 | |
Soils | Not applicable | Disturbed soil sampling from a stockpile | AS 1289.1.2.1 |
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Accreditation No.
20693
Site No.
24824
Print date
17 Apr 2024