Canada Occupational Health and Safety Regulations — 5.1
5.1 The definitions in this section apply in this Part. Boiler Code means CSA Standard B51-97, Boiler, Pressure Vessel, and Pressure Piping Code , the English version of which is dated September 1997 and was amended in February 1998 and the French version of which is dated September 1998. ( Code des chaudières ) high pressure boiler means a boiler in which steam, gas or vapour is generated at more than one atmosphere of pressure or a boiler containing liquid that has a working pressure exceeding 1,100 kPa or an operating temperature exceeding 121°C. ( chaudièreà haute pression ) inspector means a person recognized under the laws of any province or by the National Board of Boiler and Pressure Vessel Inspectors as qualified to inspect boilers, pressure vessels and pressure piping systems. ( inspecteur ) low pressure hot water boiler means a hot water boiler that has a pressure not exceeding 1,100 kPa and an operating temperature not exceeding 121°C. ( chaudière à eau chaude basse pression ) low pressure organic fluid boiler means a boiler that contains an organic fluid, that has an operating temperature not exceeding 343°C and that has no valves or other obstructions to prevent circulation of the organic fluid between the boiler and an expansion tank that is fully vented to the atmosphere. ( chaudière à basse pression contenant un hydrocarbure ) low pressure steam boiler means a boiler that operates at a steam pressure not exceeding one atmosphere of pressure. ( chaudière à vapeur d’eau basse pression ) low working pressure hot water boiler [Repealed, SOR/2009-147, s. 5] maximum allowable working pressure means the maximum working pressure that is specified by the manufacturer in the plans and specifications accepted and registered by the provincial authorities and that is set out in the record referred to in section 5.18. ( pression de fonctionnement maximale autorisée ) maximum temperature means the maximum temperature that is specified by the manufacturer in the plans and specifications accepted and registered by the provincial authorities and that is set out in the record referred to in section 5.18. ( température maximale ) NDT technician means a person who performs nondestructive testing and who is certified to carry out such testing. ( technicien END ) pipeline has the same meaning as in section 2 of the Canadian Energy Regulator Act , but does not include boilers. ( pipeline ) pressure piping system means an assembly of pipes, pipe fittings, valves, safety devices, pumps, compressors and other fixed equipment that contains a gas, vapour or liquid and is connected to a boiler or pressure vessel. ( réseau de canalisations sous pression ) unfired boiler means a boiler in which steam or other vapour is generated by a source of heat other than combustion and includes an electric boiler. ( chaudière sans combustion ) waste heat boiler means an indirect-fired boiler that utilizes waste gases produced by the primary process to generate steam. ( chaudière à récupération de chaleur ) SOR/88-632, s. 9; SOR/2001-284, s. 1; SOR/2009-147, s. 5(E); SOR/2014-142, s. 2 SOR/2021-122, s. 3 SOR/2022-94, s. 5(F)