Specifications include, but are not limited to: 1.Openings in manhole sections shall be provided for the required number and size of pipes.2.Openings may be cast or cut in precast sections prior to initial set of concrete.3.Openings are to be placed in such a manner that lateral, vertical and angular adjustments through 20 degrees are possible.4.Precast manholes must be able to pass vacuum test requirements (when assembled) as described in ASTM C1244.5.Precast sections shall be marked as follows:Inside and Outside:Manufacturer, Date ManufacturedOutside only:Project Name, Manhole Name (letter/number), Size, Specification and Product Designation (MH).6.All precast sections shall have non-penetrating lift inserts for safe handling. Inserts shall have a locking feature to prevent lift pins from pulling out of lift holes during handling. Full penetrating lift holes shall be grounds for rejection of a precast section