AWWA D103-09 Factory-Coated Bolted Carbon Steel Tanks for Water Storage (PDF)

This edition of the standard includes numerous corrections, updates, revisions, and new material to clarify some of the existing requirements. Sections were rearranged and revisions made to eliminate contractual language. Metric equations and dimensions were added. The revisions include the following: Section 1, General, was revised to clarify that corrugated tanks and tanks constructed of multiple layers of steel were not applicable to the standard; Section 2, References, was revised and updated; Section 4, Materials, was revised and includes additional grades of plates, sheets, structural shapes, hardware, and other tank construction materials; Section 5, General Design, was revised to include maximum thickness of flat panel shell plates of 0.5 in. (12.7 mm), foundation anchor bolt; Sec. 5.9.4 was revised, and reinforcing criteria for diameter of connections was decreased from 4 in. (102 mm) to 2 in. (51 mm); Figure 2, Bolted piping flanges, was eliminated; Section 7, Accessories for Tanks, was revised regarding ladder requirements to bring it into compliance with updated OSHA regulations 29 CFR Part 1910; Section 8, Welding, was revised and updated regarding qualifications, procedures, and inspection; Section 14, Seismic Design, and Section 15, Wind Design, were revised extensively to reflect the requirements of the International Building Code and ASCE 7; Appendix A, Commentary for Factory-Coated Bolted Carbon Steel Tanks for Water Storage, was added to provide background information for many of the requirements contained in the standard; and, other general and specific revisions, additions, and corrections were made throughout the standard.