This part of ISO 9652 gives limited rules for the structural design and construction of unreinforced masonry for which calculations of loading and strength criteria are not required. This part of ISO 9652 is applicable to masonry built with Group 1, 2, or 3 masonry units [see 5.2.1 of ISO 9652-1:—] of clay, calcium silicate, concrete (including autoclaved aerated concrete), and manufactured stone units. The field of application is defined in Table 1 and is subject to the limitations of normative annex A. NOTE Clauses 5, 6, 7 and 8 should be taken together; clauses 9 and 10 may be applied separately; clause 11 applies to all walls covered by this part of ISO 9652. For masonry designed by calculation, see ISO 9652-1.