ASTM C1400Full Name ASTM C1400 – Standard Guide for Reduction of Efflorescence Potential in New Masonry WallsScope This guide covers methods for reducing efflorescence potential in new masonry walls.Keywords efflorescence; end dam; flashing; masonry units; mortar; preconstruction testing; water penetration; weep holesResourcesASTM International Website: ASTM C1400 Need more info?