prEN ISO 7396-3
(Main)Medical gas pipeline systems - Part 3:Proportioning units for the production of synthetic medical air (ISO/DIS 7396-3:2023)
Medical gas pipeline systems - Part 3:Proportioning units for the production of synthetic medical air (ISO/DIS 7396-3:2023)
This standard applies to proportioning units intended to produce synthetic medical air and air for driving surgical tools by mixing in defined proportions oxygen and nitrogen.
This standard applies to proportioning units intended to be components of a medical gas supply system for medical air which supplies a medical gas pipeline distribution system complying with ISO 7396-1.
The number of proportioning units within the medical air supply system and their combination with other sources of supply (e.g. cylinder manifolds) to ensure that the supply system consists of at least three sources of supply is outside the scope of this standard. Requirements for the supply systems for medical air are given in ISO 7396-1.
Systèmes de distribution de gaz médicaux - Partie 3: Unités mélangeurs pour la production d'air médical reconstitué (ISO/DIS 7396-3:2023)
Sistemi napeljav za medicinske pline - 3. del: Proporcionirne enote za proizvodnjo sintetičnega medicinskega zraka (ISO/DIS 7396-3:2023)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2024
Sistemi napeljav za medicinske pline - 3. del: Proporcionirne enote za proizvodnjo
sintetičnega medicinskega zraka (ISO/DIS 7396-3:2023)
Medical gas pipeline systems - Part 3: Proportioning units for the production of synthetic
medical air (ISO/DIS 7396-3:2023)
Systèmes de distribution de gaz médicaux - Partie 3: Unités mélangeurs pour la
production d'air médical reconstitué (ISO/DIS 7396-3:2023)
Ta slovenski standard je istoveten z: prEN ISO 7396-3
ICS:
11.040.10 Anestezijska, respiratorna in Anaesthetic, respiratory and
reanimacijska oprema reanimation equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT INTERNATIONAL STANDARD
ISO/DIS 7396-3
ISO/TC 121/SC 6 Secretariat: ANSI
Voting begins on: Voting terminates on:
2023-11-06 2024-01-29
Medical gas pipeline systems —
Part 3:
Proportioning units for the production of synthetic
medical air
ICS: 11.040.10
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
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NATIONAL REGULATIONS.
ISO/DIS 7396-3:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023
ISO/DIS 7396-3:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 7396-3
ISO/TC 121/SC 6 Secretariat: ANSI
Voting begins on: Voting terminates on:
Medical gas pipeline systems —
Part 3:
Proportioning units for the production of synthetic
medical air
ICS: 11.040.10
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2023
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 7396-3:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
Published in Switzerland
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
ii
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023
ISO/DIS 7396-3:2023(E)
40 CONTENTS
42 Foreword. 5
43 Introduction . 5
44 1 Scope . 6
45 2 Normative references . 6
46 3 Terms and definitions . 7
47 4 Nomenclature . 9
48 4.1 Components of a proportioning unit . 10
49 5 General Requirements . 10
50 6 Design requirements . 12
51 6.1 Environmental conditions . 12
52 6.2 Specification for synthetic medical air . 13
53 6.3 Management of the conformity of supply . 13
54 6.4 Sample port . 13
55 6.5 Outlet connector . 13
56 6.6 Inlet connectors - Pressure equalising system . 14
57 6.6.1 Inlet connectors . 14
58 6.6.2 Pressure equalising system . 14
59 6.7 Requirements for outlet pressure . 14
60 6.8 Indication of the functional parameters. 14
61 6.9 Monitoring and alarm systems . 14
62 6.10 Record capability . 15
63 6.11 Leakage . 15
64 6.12 Manual shut-off valves . 16
65 6.13 Automatic shut-off valves . 16
66 6.14 Non-return valves . 16
67 6.15 Pressure-relief valves . 16
68 6.16 Mechanical strength . 16
69 6.17 Filtration . 17
70 6.18 Electromagnetic compatibility . 17
71 6.19 Electrical safety . 17
72 6.20 Oxygen analysers . 17
73 6.21 Software . 18
74 7 Constructional requirements . 18
75 7.1 Cleanliness . 18
76 7.2 Lubricants . 18
77 8 Type test methods . 18
78 8.1 General . 18
79 8.2 Test method for compliance of synthetic medical air to specification . 19
80 8.3 Test method for leakage . 19
ISO/DIS 7396-3:2023(E)
81 8.4 Test method for alarms . 19
82 8.5 Test method for mechanical strength . 19
83 8.6 Test method for performance . 19
84 8.7 Electromagnetic compatibility test . 19
85 8.8 Electrical safety test . 20
86 8.9 Test method for automatic shut-off valve . 20
87 8.10 Test for enclosure . 20
88 9 Marking and packaging . 20
89 9.1 Marking . 20
90 9.2 Packaging . 21
91 10 Information supplied by the manufacturer . 21
92 10.1 Information for installation . 21
93 10.2 Instructions for use. 21
94 10.3 Information for maintenance . 22
97 Annex A (informative) - Typical examples of a proportioning unit with
98 terminology (To be drafted if necessary)
99 Annex B (Informative) – Typical forms for documenting compliance of
100 the proportioning unit with the requirements of this standard.
101 Annex C (Informative) – Rationale (To be drafted)
102 Annex D - List of potential hazards
103 Annex E (Informative) – Bibliography
ISO/DIS 7396-3:2023(E)
107 Foreword
109 ISO (the International Organization for Standardization) is a worldwide federation of national
110 standards bodies (ISO member bodies). The work of preparing International Standards is
111 normally carried out through ISO technical committees. Each member body interested in a
112 subject for which a technical committee has been established has the right to be represented
113 on that committee. International organizations, governmental and non-governmental, in liaison
114 with ISO, also take part in the work.
115 ISO collaborates closely with the International Electrotechnical Commission (IEC) on all
116 matters of electrotechnical standardization.
117 The procedures used to develop this document and those intended for its further maintenance
118 are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria
119 needed for the different types of ISO documents should be noted. This document was drafted
120 in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see
121 www.iso.org/directives).
122 Attention is drawn to the possibility that some of the elements of this document may be the
123 subject of patent rights. ISO shall not be held responsible for identifying any or all such patent
124 rights. Details of any patent rights identified during the development of the document will be in
125 the Introduction and/or on the ISO list of patent declarations received (see
126 www.iso.org/patents).
127 Any trade name used in this document is information given for the convenience of users and
128 does not constitute an endorsement. For an explanation on the meaning of ISO specific terms
129 and expressions related to conformity assessment, as well as information about ISO’s
130 adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following
131 URL: Foreword - Supplementary information
132 The committee responsible for this document is ISO/TC 121, Anaesthetic and respiratory
133 equipment, Subcommittee SC 6, Medical gas systems.
134 This is the first edition of this part of ISO 7396.
137 Introduction
139 Proportioning units are components of a supply system intended to supply synthetic
140 medical air to a medical gas pipeline distribution system complying with ISO 7396-1.
141 Such a standard requires that a supply system consists of at least three sources of supply
142 which can typically be, in addition to a proportioning unit, cylinder manifolds with
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