Specifications include, but are not limited to: 1. Iron Castings. a. Governing Standard. Except as modified or supplemented herein, all castings furnished shall conform to the requirements of ASTM A48, Class 35B or higher. b. Acceptable Products. Castings shall be the product of Clay & Bailey, Deeter, Neenah, or an approved equal. c. Submittals. i. Cast Test Bars. Cast test bars shall be delivered to the site with the castings. Laboratory verification of chemistry, Brinell Hardness, or tensile strength will be required at the Engineer's request and shall be delivered within two weeks of request at no additional cost. ii. Certificate of Insurance. The casting manufacturer shall purchase and maintain product liability insurance in the amount of $3,000,000.00. Contractor shall provide the manufacturer’s properly completed certificate of insurance with their bid documents. d. Marking. All castings shall have the manufacturer's name and Julian heat date legibly cast thereon. Indistinct markings shall be grounds for rejection of individual castings. All castings of foreign origin must comply with current U.S. Customs marking regulations. i. Sanitary Sewers. The designation “CITY OF TOPEKA SANITARY SEWER” shall be cast in 2-1/2 inch high block letters flush with the traffic surface on all manhole covers intended for wastewater use. Letters shall be arranged around the circumference of the cover. A surface pick slot and concealed pick slots shall be manufactured into the lid. ii. Storm Sewers and Inlets. The designation “DRAINS TO RIVER DO NOT DUMP” shall be cast in 2-1/2 inch high block letters arranged around the circumference of all manhole and inlet covers intended for stormwater use. A likeness of a catfish shall be cast in the center of the lid. A standard open pick slot shall be manufactured into the lid. e. Dimensions and Weight. All castings shall conform to the dimensions and weights indicated in the Project Documents. Dimensions shall not deviate more than 1/16 inch per foot. Surfaces of lids or covers shall not vary more than 1/16 inch above or below surfaces of accompanying frames or rings when properly seated. The weight of individual castings shall not vary by more than 4 percent from that specified. f. Minimum Tensile Strength. The tensile strength of each casting provided under this specification shall be at least 30,000 psi. g. Workmanship. All castings shall be manufactured true to pattern. Compatibility and fit of component parts shall be subject to inspection and acceptance or rejection. Castings shall be free of defects, to include but not necessarily limited to, blow holes, sand inclusions, cracks, distortion, and/or deviations from specified or indicated dimensions. All castings shall be furnished in bare metal. h. Compliance with U.S. Customs Regulations. All castings imported into the United States shall conform to the applicable provisions of United States Customs regulations. i. Interchangeability. Manhole frames and covers shall be manufactured so as to be fully interchangeable. All of the covers provided shall be suitable for installation on any of the frames provided and shall not rock or tip under an applied load.
