AS 1141.27 pdf download – Methods for sampling and testing aggregates Method 27: Resistance to wear by attrition 4SAMPLING Samples shall be obtained in accordance with AS 1141.3.1 when testing aggregatc,and inaccordance with AS 1141.3.2 if rock spalls are sampled to be crushed to provide materialfor the test portion.Obtain a bulk field sample of at least 60 kg of the...