BS ISO 22146:2018 specifies a method for determining the reactivity of calcium carbonate and calcium magnesium carbonate liming materials. It assesses the speed and effectiveness of their neutralising potential by automatic titration with citric acid.Cross References:EN 12048ISO 20978ISO 20977ISO 3696ISO 14820-2EN 14984ISO 14820-1ISO 5725-1EN 12947ISO 5725-2EN 12946ISO 9277All current amendments available at time of purchase are included with the purchase of this document.