SN EN 794-2 : 1998

Foreword<br>Introduction<br>Section one. General<br>1 Scope<br>2 Normative references<br>3 Terminology and definitions<br>4 General requirements and general requirements for test<br>5 Classification<br>6 Identification, marking and documents<br>7 Power input<br>Section two. Environment conditions<br>8 Basic safety categories<br>9 Removable protective means<br>10 Environmental conditions<br>11 Not used<br>12 Not used<br>Section three. Protection against electric shock hazards<br>13 General<br>14 Requirements related to classification<br>15 Limitation of voltage and/or energy<br>16 Enclosures and protective covers<br>17 Separation<br>18 Protective earthing, functional earthing and<br>&nbsp;&nbsp;&nbsp;&nbsp;potential equalization<br>19 Continuous leakage currents and patient auxiliary<br>&nbsp;&nbsp;&nbsp;&nbsp;currents<br>20 Dielectric strength<br>Section four. Protection against mechanical hazards<br>21 Mechanical strength<br>22 Moving parts<br>23 Surfaces, corners and edges<br>24 Stability in normal use<br>25 Expelled parts<br>26 Vibration and noise<br>27 Pneumatic and hydraulic power<br>28 Suspended masses<br>Section five. Protection against hazards from unwanted or<br>excessive radiation<br>29 X-radiation<br>30 Alpha, beta, gamma, neutron radiation and other <br>&nbsp;&nbsp;&nbsp;&nbsp;particle radiation<br>31 Microwave radiation<br>32 Light radiation (including lasers)<br>33 Infra-red radiation<br>34 Ultra-violet radiation<br>35 Acoustical energy (including ultrasonics)<br>36 Electromagnetic compatibility<br>Section six. Protection against hazards of ignition of <br>flammable anaesthetic mixtures<br>37 Locations and basic requirements<br>38 Marking and accompanying documents<br>39 Common requirements for Category AP and Category AGP<br>&nbsp;&nbsp;&nbsp;&nbsp;equipment<br>40 Requirements and tests for Category AP equipment,<br>&nbsp;&nbsp;&nbsp;&nbsp;parts and components thereof<br>41 Requirements and tests for category APG equipment, <br>&nbsp;&nbsp;&nbsp;&nbsp;parts and components thereof<br>Section seven. Protection against excessive temperature<br>and other safety hazards<br>42 Excessive temperatures<br>43 Fire prevention<br>44 Overflow, spillage, leakage, humidity, ingress of <br>&nbsp;&nbsp;&nbsp;&nbsp;liquids, cleaning, sterilization, disinfection and<br>&nbsp;&nbsp;&nbsp;&nbsp;compatibility<br>45 Pressure vessels and parts subject to pressure<br>46 Not used<br>47 Electrostatic charges<br>48 Biocompatibility<br>49 Interruption of the power supply<br>Section eight. Accuracy of operating data and protection <br>against hazardous output<br>50 Accuracy of operating data<br>51 Protection against hazardous output<br>Section nine. Abnormal operation and fault conditions:<br>environmental tests<br>52 Abnormal operation and fault conditions<br>53 Environmental tests<br>Section ten. Constructional requirements<br>54 General<br>55 Enclosures and covers<br>56 Components and general assembly<br>57 Mains parts, components and layout<br>58 Protective earthing - Terminals and connections<br>59 Construction and layout<br>Annex AA (informative) Rationale<br>Annex BB (normative) Legibility and visibility of visual<br>indication<br>Annex CC (informative) Typical ventilator arrangements<br>Annex DD (informative) Special national conditions<br>Annex EE (normative) Bibliography<br>Annex ZA (informative) Clauses of this European Standard<br>addressing essential requirements or other Provisions of<br>EU Directives<br><br>

Defines requirements for lung ventilators largely for home care use for patients, but in certain circumstances could be used in hospital. ALSO NUMBERED AS BS 5724-2.203(1997)