ASTM International - ASTM C478M-97
Standard Specification for Precast Reinforced Concrete Manhole Sections [Metric]
|Publication Date:||10 April 1997|
|ICS Code (Sewage water):||13.060.30|
1.1 This specification covers precast reinforced concrete manhole base sections, riser sections, and appurtenances such as grade rings, tops, and special sections for use in sewer and water works.