Proficiency Testing Australia is pleased to announce the completion of the first Fine Aggregates Proficiency Testing Program. This program has recently been approved by International Accreditation New Zealand (IANZ) and is now part of PTA’s scope.

Round 1 (Aggregates 23) of this program was conducted in September 2020 with 28 participating laboratories provided with ~5 kg of fine aggregate (sand). This round of the program was designed to cover the following methods:

• AS 1141.5 Particle density and water absorption of fine aggregate
• AS 1141.24 Aggregate soundness test by exposure to Sodium Sulphate
• AS 1141.25.3 Degradation factor - fine aggregate
• AS 1141.33 Clay and fine silt - settling method
• AS 1141.34 Organic impurities other than sugar

The final program report 1237 is now available on the PTA website. Registration for participation in Round 2 (Aggregates 26) of the Fine Aggregates Proficiency Testing Program will open in August 2021.

For more information about the program, please This email address is being protected from spambots. You need JavaScript enabled to view it..