B-1.1, r. 2 - Construction Code

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8.69. The threaded joint in piping used to contain petroleum products must be made using a joint compound or polytetrafluoroethylene tape that meets the requirements of CAN/ULC Standard S642 Standard for Compounds and Tapes for Threaded Pipe Joints, published by Underwriters’ Laboratories of Canada.
O.C. 220-2007, s. 1; 87-2018O.C. 87-2018, s. 34.
8.69. The threaded joint in piping used to contain petroleum products must be made using a joint compound or polytetrafluoroethylene tape that meets the requirements of CAN/ULC Standard S642 Compounds and Tapes for Threaded Pipe Joints, published by Underwriters’ Laboratories of Canada.
O.C. 220-2007, s. 1.