This standard covers 3-in. through 24-in. (76-mm through 610-mm) and 54-in. through 64-in. (1,400-mm through 1,600-mm) ductile-iron compact fittings to be used with ductile-iron pipe or pipe made of other materials with similar outside diameters for conveying water. For the 3-in. through 24-in. (76-mm through 610-mm) size range, fittings are rated for 350-psi (2,413-kPa) working pressure. For the 54-in. through 64-in. (1,400-mm through 1,600-mm) size range, fittings are rated for 150-psi (1,034-kPa) working pressure. Fittings with mechanical joints are listed in this standard for the 3-in. through 24-in. (76-mm through 610-mm) sizes. The standard also may be used for fittings of these sizes with push-on joints or such other joints as agreed on at the time of purchase. Fittings with push-on joints and flanged joints are listed in this standard for the 54-in. through 64-in. (1,400-mm through 1,600-mm) sizes. Fittings with flange joints are not covered by this standard for sizes 3 in. through 24 in. (76 mm through 610 mm), due to the importance of standardized center-to-flange face dimensions for these sizes already covered in ANSI/AWWA C110/A21.10. Fittings with plain end(s) are listed for bends and reducers of the 3-in. through 24-in. (76-mm through 610-mm) and 54-in. through 64-in. (1,400-mm through 1,600-mm) size ranges and for tees and crosses of the 54-in. through 64-in. (1,400-mm through 1,600-mm) size range. The major revisions in this edition of ANSI/AWWA C153 include the following: The standard was edited throughout; The foreword was reformatted and edited and Sec. I.C Acceptance, and Sec. III.B Modification of This Standard were added; The standard was revised to include 18-in. through 24-in. (457-mm through 610-mm) and 54-in. through 64-in. (1,400-mm through 1,600-mm) size range fittings; Section 53-2 Definitions, old Sec. 53-2.4 Inspector, and old Sec. 53-2.7 Owner, were deleted; Section 53-2.2 Ductile Iron, Sec. 53-2.4 Manufacturer and Sec. 53-2.6 Purchaser were revised; Section 53-2.7 Purchaser's Representative and Sec. 53-2.9 Flanged Joint were added; Tables 53.1, 53.2, 53.4 and 53.7 were revised to include 18-in. through 24-in. (457-mm through 610-mm) fittings; Table 53.6, Mechanical-Joint Reducers, was revised to include four types of reducers, as well as 18-in. through 24-in. (457-mm through 610-mm) sizes; Table 53.3 Mechanical-Joint by Plain-End Bends, Table 53.5 Mechanical-Joint Crosses, Table 53.8 Push-on-Joint Bends, Table 53.9 Push-on-Joint Tees and Crosses, Table 53.10 Push-on-Joint reducers, Table 53.11 Flange Details, Table 53.12 Flanged Bends, Table 53.13 Flanged Tees and Crosses, and Table 53.14 Flanged Reducers were added; Sec. 53-19 Special Requirements for Flanged Fittings was added; and Appendix A Flanged Fittings--Bolts, Gaskets and Installation was added.