View Historical Standards for F1143:

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Document Designation and Title Year Select Item(s) F1143 Standard Specification for Manhole Cover Assembly, Bolted, Raised, Oiltight and Watertight 98(2007) F1143 Standard Specification for Manhole Cover Assembly, Bolted, Raised, Oiltight and Watertight 98(2003) F1143 Standard Specification for Manhole Cover Assembly, Bolted, Raised, Oiltight and Watertight 98