CONCRETE PIPE Standard Specifications The scopes of nationally accepted ASTM specifications are highlighted in this section for reference. The CSA counterpart to the denoted ASTM specifications has been identified where appropriate. • ASTM C 478 Precast Reinforced Concrete Manhole Sections: Covers precast reinforced concrete manhole risers, grade rings and tops to be used to construct manholes for storm and sanitary sewers. CSA Specification Designation A257.4 In addition to the standards and specifications listed here, it is important to note that most municipalities have their own specifications that may take precedence over the requirements outlined within these respective documents. It is critical that local specifications be consulted prior to the start of any project to ensure that the pertinent requirements are being met. Please contact your local Lafarge representative if you are unfamiliar with the regulations that may apply in your area. PAGE 8 LAFARGE PIPE eMANUAL