Normas ISO

Connections for general use and fluid power -- Ports and stud ends with ISO 228-1 threads with elastomeric or metal-to-metal sealing-- Part 3: Light-duty (L series) stud ends with sealing by O-ring with retaining ring (types G and H)

Connections for general use and fluid power -- Ports and stud ends with ISO 228-1 threads with elastomeric or metal-to-metal sealing-- Part 4: Stud ends for general use only with metal-to-metal sealing (type B)

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Fire detection and alarm systems-- Part 8: Carbon monoxide fire detectors using an electro-chemical cell in combination with a heat sensor

Inhalational anaesthesia systems-- Part 2: Anaesthetic breathing systems

Fire detection and alarm systems-- Part 19: Design, installation, commissioning and service of sound systems for emergency purposes