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C. Or approved equivalent. <br /> 2.06 STEPS <br /> A. Steps in manholes shall be installed. <br /> 1. Manhole steps shall be made of a minimum 3/8-inch diameter grade 60 steel <br /> reinforcing rod completely encapsulated in a copolymer polypropolyene <br /> plastic,conforming to ASTM C478 and ASTM C497. <br /> 2. Acceptable steps and their manufacturers are: <br /> a. M.A.Industries; PS-2-PFS. <br /> b. M.A. industries; PS-2PF. <br /> C. Or approved equivalent. <br /> 2.07 PREFORMED PLASTIC GASKETS <br /> A. All preformed plastic gaskets shall conform to Federal specification SS-S-00210 <br /> (GSA-FSS).Type I,rope form.. <br /> B. The diameter of the preformed plastic gasket shall be I .5-inches(1.5"). <br /> C. Acceptable gaskets and their manufacturers are: <br /> 1. Hamilton-Kent Manufacturing Co.; Kent Seal. <br /> 2. Con Seal; CS-202. <br /> 3. Or approved equivalent. <br /> PART 3 EXECUTION <br /> 3.01 INSPECTION <br /> A. Manholes shall be inspected for cracks,abrasions,or other flaws prior to installation. <br /> l. Damaged or flawed manholes shall be rejected and not used. <br /> a. Mark defective manholes and store them on site at a separate location <br /> away from the work until after acceptance of the piping system at <br /> which time it shall be removed from the site. <br /> 3.02 PREPARATION <br /> A. Reference Section 02320,Trenching,Backfilling and Compaction. <br /> Boyd Freeman Ditch Improvements 02605-4 Manholes <br /> August 2005 <br />