Amendment 1:2018 to CAN/CSA-C22.2 NO. 60079-18:16, Explosive atmospheres - Part 18: Equipment protection by encapsulation \"m\" -------------------------------------------------------------------------------------------------------------------------------- Modification 1:2018 de CAN/CSA-C22.2 NO. 60079-18:16, Atmosphères explosives - Partie 18 : Protection du matériel par encapsulage «m»