1.1 This standard incorporates generic terms and generic definitions of terms specifically associated with masonry and masonry units. These generic terms and definitions are used within the standards developed by Committee C12 on Mortars and Grouts for Unit Masonry and Committee C15 on Manufactured Masonry Units.

1.2 This standard incorporates terms and definitions of terms associated with the standards specific to clay masonry units, in particular to Specifications C 32, C 34, C 56, C 62, C 126, C 212, C 216, C 279, C 410, C 652, C 902, C 1088, C 1167, C 1261, C 1272, and C 1405, and to Test Methods C 67.

1.3 This standard incorporates terms and definitions of terms associated with the standards specific to concrete masonry units in particular to Specifications C 55, C 73, C 90, C 129, C 139, C 744, C 1319, C 1372, C 1491, C 1623, and C 1634 and to Test Methods C 140, C 426, and C 1262.

1.4 This standard incorporates terms and definition of terms associated with the standards specific to autoclaved aerated concrete masonry units in particular to Practice C 1555 and to Specification C 1386.

1.5 This standard incorporates terms and definitions of terms associated with the standards specific to clay and concrete roofing tile units in particular to Specifications C 1167 and C 1492 and to Test Methods C 1568, C 1569, and C 1570.

1.6 For terminology specific to mortar and grout, see Terminology C 1180.