Scope 1.1 This Standard applies to brick made from fired clay or shale that are intended for use as structural and/or facing components in masonry. It includes testing and other requirements pertaining to freeze-thaw durability, finish, texture, colour, compressive strength, absorption, efflorescence, size, warpage, and outof-square. Note: See Annex A for information on brick availability, durability of finish, and ordering. Annex B provides commentary on brick properties, durability, and use. For masonry of fired brick designed in accordance with CSA S304, see Clause B.8.3. 1.2 This Standard does not specify requirements for clay paving brick, thin brick, or glazed brick. 1.3 This Standard specifies requirements for two grades of brick - EG (Exterior Grade) and IG (Interior Grade), and three types of brick - Type S, Type X, and Type A. Brick may be solid, cored, or hollow. 1.4 Although this Standard provides test methods for initial rate of absorption (Clause 16) and efflorescence (Clause 17), these characteristics are not used as qualifying conditions for determining compliance of brick with this Standard. 1.5 Testing of brick removed from in-situ masonry construction is not within the scope of this Standard.