BS EN ISO 18779:2005

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements and general requirements for
    tests
5 Classification
6 Identification, marking and documents
7 Power input
8 Basic safety categories
9 Removable protective means
10 Environmental conditions
11 Not used
12 Not used
13 General
14 Requirements related to classification
15 Limitation of voltage and/or energy
16 Enclosures and protective covers
17 Separation
18 Protective earthing, functional earthing and potential
    equalization
19 Continuous leakage currents and patient auxiliary
    currents
20 Dielectric strength
21 Mechanical strength
22 Moving parts
23 Surfaces, corners and edges
24 Stability in normal use
25 Expelled parts
26 Vibration and noise
27 Pneumatic and hydraulic power
28 Suspended masses
29 X-Radiation
30 Alpha, beta, gamma, neutron radiation and other particle
    radiation
31 Microwave radiation
32 Light radiation (including lasers)
33 Infrared radiation
34 Ultraviolet energy
35 Acoustical energy (including ultrasonics)
36 Electromagnetic compatibility
37 Locations and basic requirements
38 Marking and accompanying documents
39 Common requirements for category AP and category APG equipment
40 Requirements and tests for category AP equipment, parts and
    components thereof
41 Requirements and tests for category APG equipment, parts and
    components thereof
42 Excessive temperatures
43 Fire prevention
44 Overflow, spillage, leakage, humidity, ingress of liquids,
    cleaning, sterilization, disinfection and compatibility
45 Pressure vessels and parts subject to pressure
46 Human errors
47 Electrostatic charges
48 Biocompatibility
49 Interruption of the power supply
50 Accuracy of operating data
51 Protection against hazardous output
52 Abnormal operation and fault conditions
53 Environmental tests
54 General
55 Enclosures and covers
56 Components and general assembly
57 Mains parts, components and layout
58 Protective earthing - Terminals and connections
59 Construction and layout
101 Additional requirements
Annex AA (informative) Rationale
Annex BB (informative) Environmental aspects
Annex CC (informative) Index of defined terms
Bibliography
ANNEX ZA (informative) Relationship between this International
         Standard and the Essential Requirements of EU Directive
         93/42 EEC Medical devices

Describes requirements for oxygen and oxygen mixture saving devices (called here conserving devices) that are used to supply respiratory gases during therapy.