1450.2—Definitions.
(b)
Unblockable drain includes a suction outlet defined as all components, including the sump and/or body, cover/grate, and hardware such that its perforated (open) area cannot be shadowed by the area of the 18″ x 23″ Body Blocking Element of ASME/ANSI A112.19.8-2007 and that the rated flow through the remaining open area (beyond the shadowed portion) cannot create a suction force in excess of the removal force values in Table 1 of that Standard. All suction outlet covers, manufactured or field-fabricated, shall be certified as meeting the applicable requirements of the ASME/ANSI A112.19.8 standard. You must proceed in accordance with ASME/ANSI A112.19.8-2007 (issued March 30, 2007), including Addenda A112.19.8a-2008 (August 11, 2008) and A112.19.8b-2009 (approved October 22, 2009), Suction Fittings for Use in Swimming Pools, Wading Pools, Spas, and Hot Tubs. ASME/ANSI A112.19.8-2007, including Addenda A112.19.8a-2008 and A112.19.8b-2009 are incorporated by reference. The Director of the Federal Register approves this incorporation by reference in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. You may obtain a copy from American Society of Mechanical Engineers (ASME), ATTN: Secretary, A112 Standards Committee, Three Park Avenue, New York, New York 10016-5990; www.asme.org, telephone 800-843-2763. You may inspect a copy at the Office of the Secretary, U.S. Consumer Product Safety Commission, Room 502, 4330 East West Highway, Bethesda, MD 20814, telephone 301-504-7923, or the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030 or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.