1. NBR 15894–3: Metakaolin for Use with Portland Cement in Concrete, Mortar and Paste Part 3: Determination of Fineness by the 45 μm Test Sieve;ABNT,2010
2. NBR 15895: Pozzolanic Materials - Determination of Calcium Hydroxide Fixed - Modified Chapelle’s Method;ABNT,2010
3. NBR 15894–2: Metakaolin for Use with Portland Cement in Concrete, Mortar and Paste Part 2: Determination of the Performance Index with Cement at Seven Days;ABNT,2010
4. NBR 15894–1: Metakaolin for Use with Portland Cement in Concrete, Mortar and Paste Part 1: Requirements;ABNT,2010
5. NBR 12653: Pozzolanic Materials — Requirements;ABNT,2014