Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: EN 144-3:2003
• Năm ban hành / Publication date: 2003
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Respiratory protective devices Gas cylinder valves Part 3: Outlet connections for diving gases Nitrox and oxygen
• Phạm vi áp dụng / Scope of standard: This European Standard is applicable to a thread connection used for the connection between a gas cylinder valve and a pressure reducer for respiratory equipment for diving containing breathable nitrox gas with an oxygen content greater than 22 % or oxygen. This European Standard specifies the dimensions and tolerances for connections which are used for respiratory equipment