1. NBR 7214: Standard sand for cement tests - Specification,2015
2. NBR 12653 : Pozzolanic materials - Requirements,2015
3. NBR 5752: Pozzolanic materials - Determination of the performance index with Portland cement at 28 days,2014
4. NBR 16605: Portland cement and other powdered material: Determination of the specific gravity,2017
5. NBR 9831: Oil well Portland cements - Requirements and test methods,2020