EN 739:1998

EN 739:1998 is a standard published by the European Committee for Standardization (CEN). Its full title is "Low-pressure hose assemblies for use with medical gases". This standard covers: 1.1 This European Standard specifies requirements for low-pressure hose assemblies intended for use with the following medical gases: - oxygen; - nitrous oxide; - air for breathing; - helium; - carbon dioxide; - xenon; - specified mixtures of the gases listed above; - air for driving surgical tools; - nitrogen for driving surgical tools; - vacuum. It is intended especially to ensure gas-specificity and to prevent cross-connection between different gases. These hose assemblies are intended to be used in the pressure range between 300 kPa and 1400 kPa for compressed medical gases and between 10 kPa and 100 kPa absolute pressure for vacuum. 1.2 This European Standard does not specify the intended uses of hose assemblies. Some examples of the intended uses specified in other standards are as follows: a) between a terminal unit and medical equipment (see EN 737-1, prEN 740, EN 794-1); b) between the fixed pipeline system and a terminal unit of that system (see prEN 737-3, EN 793); c) between a terminal unit and a second terminal unit (see prEN 737-3); d) between an emergency supply and an emergency and maintenance inlet point of a pipeline system (see EN 738-1, prEN 737-3); e) between an emergency supply and medical equipment (see EN 738-1, prEN 740, EN 794- 1). 1.3 This European Standard specifies the dimensions of non-interchangeable screw-threaded (NIST) connectors. 1.4 This European Standard does not specify: - dimensions of probes and of the mating parts of the socket (see prEN 737-6); - requirements for hose assemblies for anaesthetic gas scavenging systems; - requirements for coaxial hoses used for the supply and disposal of air for driving surgical tools; - requirements for electrical conductivity.

1.1 This European Standard specifies requirements for low-pressure hose assemblies intended for use with the following medical gases: - oxygen; - nitrous oxide; - air for breathing; - helium; - carbon dioxide; - xenon; - specified mixtures of the gases listed above; - air for driving surgical tools; - nitrogen for driving surgical tools; - vacuum. It is intended especially to ensure gas-specificity and to prevent cross-connection between different gases. These hose assemblies are intended to be used in the pressure range between 300 kPa and 1400 kPa for compressed medical gases and between 10 kPa and 100 kPa absolute pressure for vacuum. 1.2 This European Standard does not specify the intended uses of hose assemblies. Some examples of the intended uses specified in other standards are as follows: a) between a terminal unit and medical equipment (see EN 737-1, prEN 740, EN 794-1); b) between the fixed pipeline system and a terminal unit of that system (see prEN 737-3, EN 793); c) between a terminal unit and a second terminal unit (see prEN 737-3); d) between an emergency supply and an emergency and maintenance inlet point of a pipeline system (see EN 738-1, prEN 737-3); e) between an emergency supply and medical equipment (see EN 738-1, prEN 740, EN 794- 1). 1.3 This European Standard specifies the dimensions of non-interchangeable screw-threaded (NIST) connectors. 1.4 This European Standard does not specify: - dimensions of probes and of the mating parts of the socket (see prEN 737-6); - requirements for hose assemblies for anaesthetic gas scavenging systems; - requirements for coaxial hoses used for the supply and disposal of air for driving surgical tools; - requirements for electrical conductivity.

EN 739:1998 is classified under the following ICS (International Classification for Standards) categories: 11.040.10 - Anaesthetic, respiratory and reanimation equipment; 23.040.70 - Hoses and hose assemblies. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 739:1998 has the following relationships with other standards: It is inter standard links to EN ISO 5359:2008, EN 14931:2006, EN ISO 11197:2009, EN 739:1998/A1:2002. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN 739:1998 is associated with the following European legislation: EU Directives/Regulations: 93/42/EEC; Standardization Mandates: M/023. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.

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