Compliance With Following National / International Standards: ASTM D6931, AASHTO T283 The Indirect Tensile Strength is determined by measuring the ultimate load to failure of a specimen, which is subjected to a constant deformation rate of 50.8 mm/minute on its diametrical axis according to ASTM D6931. Further details available on our website. Price and specifications mentioned here are subject to change as per the application, customer requirements and prevailing market conditions. Please refer to us for the final rates and offer.