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ASTM C478M-15
- Standard Specification for Circular Precast Reinforced Concrete Manhole Sections (Metric)
- standard by ASTM International, 01/01/2015
- Publisher: ASTM
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1.1 This specification covers the manufacture and purchase requirements of products used for the assembly and construction of circular vertical precast reinforced concrete manholes and structures used in sewer, drainage, and water works.