SIST EN ISO 7396-2:2007
Medical gas pipeline systems - Part 2: Anaesthetic gas scavenging disposal systems (ISO 7396-2:2007)
Medical gas pipeline systems - Part 2: Anaesthetic gas scavenging disposal systems (ISO 7396-2:2007)
This part of ISO 7396 specifies requirements for the design, installation, function, performance, documentation, testing and commissioning of anaesthetic gas scavenging disposal systems to ensure patient safety and to minimize exposure of the operator and other persons to anaesthetic gases and vapours. It includes requirements for the power device, pipeline system, performance, non-interchangeability between key components and avoidance of cross connections between anaesthetic gas scavenging (AGS) disposal systems and medical gas and vacuum pipeline systems. This part of ISO 7396 is applicable only to those disposal systems intended to be connected via AGSS terminal units conforming to ISO 9170-2 and to AGSS receiving systems conforming to ISO 8835-3. This part of ISO 7396 also applies to: - extensions of existing AGSS disposal systems; - modifications of existing AGSS disposal systems; - modifications or replacement of power devices.
Rohrleitungssysteme für medizinische Gase - Teil 2: Entsorgungssysteme von Anästhesiegas-Fortleitungssystemen (ISO 7396-2:2007)
Dieser Teil von ISO 7396 legt Anforderungen an das Design, die Installation, die Funktion, die Leistung, die Dokumentation, die Prüfung und die Inbetriebnahme von Entsorgungssystemen eines Anästhesiegas Fortleitungssystems fest, um die Sicherheit des Patienten sicherzustellen und das Ausgesetztsein des Anwenders und weiterer Personen gegenüber Anästhesiegasen und dämpfen auf ein Mindestmaß herabzusetzen. Er enthält Anforderungen an die Antriebseinrichtung, das Rohrleitungssystem, die Leistung und die Nichtaustauschbarkeit von Schlüssel¬komponenten und an das Vermeiden von Querverbindungen zwischen Anästhesiegas-(AGF)-Entsorgungssystemen und Rohrleitungssystemen für medizinische Gase und Vakuum.
ANMERKUNG In diesem Teil von ISO 7396 bezieht sich der Begriff Rohrleitung ausschließlich auf Rohr¬leitungen, die Teil eines besonders dafür vorgesehenen Anästhesiegas Fortleitungssystems (AGSF) sind.
Dieser Teil von ISO 7396 gilt nur für solche Entsorgungssysteme, die dafür vorgesehen sind, über AGFS-Entnahmestellen nach ISO 9170 2: an Aufnahmesysteme nach ISO 8835 3: angeschlossen zu werden.
Dieser Teil von ISO 7396 gilt auch für:
a) Erweiterungen vorhandener AGSF-Entsorgungssysteme;
b) Änderungen vorhandener AGSF-Entsorgungssysteme;
c) Änderungen oder Ersatz von Antriebseinrichtungen.
Réseaux de distribution de gaz médicaux - Partie 2: Réseaux d'évacuation de gaz d'anesthésie non réutilisables (ISO 7396-2:2007)
L'ISO 7396-2:2007 spécifie les exigences relatives à la conception, à l'installation, au fonctionnement, aux performances, à la documentation, aux essais et à la mise en service des systèmes d'évacuation de gaz d'anesthésie afin de garantir la sécurité du patient et de réduire à sa valeur minimale l'exposition de l'opérateur et d'autres personnes aux vapeurs et aux gaz d'anesthésie. Elle inclut des exigences relatives à la source d'alimentation, au réseau de distribution, aux performances, à la non interchangeabilité entre les composants clés ainsi qu'aux mesures prises pour éviter toute interversion entre les systèmes d'évacuation de gaz d'anesthésie et les réseaux de distribution de vide et de gaz médicaux.
L'ISO 7396-2:2007 s'applique uniquement aux systèmes d'évacuation qui sont destinés à être raccordés via des prises murales de systèmes d'évacuation de gaz d'anesthésie conformes à l'ISO 9170‑2 à des systèmes de réception de systèmes d'évacuation de gaz d'anesthésie conformes à l'ISO 8835-3.
La présente partie de l'ISO 7396 s'applique également
aux extensions des systèmes d'évacuation de gaz d'anesthésie existants,
aux modifications des systèmes d'évacuation de gaz d'anesthésie existants,
aux modifications ou au remplacement des sources d'alimentation.
Sistemi napeljav za medicinske pline - 2. del: Sistemi za odstranjevanje anestezijskih plinov in hlapov (ISO 7396-2:2007)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 7396-2:2007
01-oktober-2007
1DGRPHãþD
SIST EN 737-2:2000
SIST EN 737-2:2000/A1:2000
SIST EN 737-2:2000/AC:2002
Sistemi napeljav za medicinske pline - 2. del: Sistemi za odstranjevanje
anestezijskih plinov in hlapov (ISO 7396-2:2007)
Medical gas pipeline systems - Part 2: Anaesthetic gas scavenging disposal systems
(ISO 7396-2:2007)
Rohrleitungssysteme für medizinische Gase - Teil 2: Entsorgungssysteme von
Anästhesiegas-Fortleitungssystemen (ISO 7396-2:2007)
Réseaux de distribution de gaz médicaux - Partie 2: Réseaux d'évacuation de gaz
d'anesthésie non réutilisables (ISO 7396-2:2007)
Ta slovenski standard je istoveten z: EN ISO 7396-2:2007
ICS:
11.040.10 Anestezijska, respiratorna in Anaesthetic, respiratory and
reanimacijska oprema reanimation equipment
SIST EN ISO 7396-2:2007 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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EUROPEAN STANDARD
EN ISO 7396-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2007
ICS 11.040.10 Supersedes EN 737-2:1998
English Version
Medical gas pipeline systems - Part 2: Anaesthetic gas
scavenging disposal systems (ISO 7396-2:2007)
Réseaux de distribution de gaz médicaux - Partie 2: Rohrleitungssysteme für medizinische Gase - Teil 2:
Réseaux d'évacuation de gaz d'anesthésie non réutilisables Entsorgungssysteme von Anästhesiegas-
(ISO 7396-2:2007) Fortleitungssystemen (ISO 7396-2:2007)
This European Standard was approved by CEN on 15 March 2007.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 7396-2:2007: E
worldwide for CEN national Members.
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EN ISO 7396-2:2007 (E)
Foreword
This document (EN ISO 7396-2:2007) has been prepared by Technical Committee CEN/TC 215
"Respiratory and anaesthetic equipment", the secretariat of which is held by BSI, in collaboration with
Technical Committee ISO/TC 121 "Anaesthetic and respiratory equipment".
This European Standard shall be given the status of a national standard, either by publication of
an identical text or by endorsement, at the latest by October 2007, and conflicting national
standards shall be withdrawn at the latest by April 2009.
This document supersedes EN 737-2:1998.
This document has been prepared under a mandate given to CEN by the European Commission
and the European Free Trade Association, and supports essential requirements of EU
Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this
document.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United
Kingdom.
2
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EN ISO 7396-2:2007 (E)
Annex ZA
(informative)
Relationship between this International Standard and the Essential
Requirements of EU Directive 93/42/EC on Medical devices
This International Standard has been prepared under a mandate given to CEN by the European
Commission and the European Free Trade Association to provide one means of conforming to
Essential Requirements of the New Approach Directive 93/42/EEC Medical devices.
Once this standard is cited in the Official Journal of the European Communities under that
Directive and has been implemented as a national standard in at least one Member State,
compliance with the clauses of this standard given in Table ZA 1 confers, within the limits of the
scope of this standard, a presumption of conformity with the corresponding Essential
Requirements of that Directive and associated EFTA regulations.
Table ZA 1— Correspondence between this International Standard and Directive
93/42/EEC
Clause(s)/Sub-clause(s) of Essential Requirements (ERs) of EU Qualifying
this International Standard Directive 93/42/EEC remarks/Notes
4.1 1
4.2 2
4.3 2
4.3.1 4, 7.1, 7.3, 9.2, 9.3
4.3.2 4, 7.1, 7.3, 9.2, 9.3
4.3.3 2
4.3.4 4, 7.1, 9.3
4.3.5 4, 7.1, 7.3, 9.3
4.3.6 5
5.1 1, 2, 3
5.2 3, 9.3, 12.8.2
5.3 3, 4
5.4 3, 4
5.5 9.2, 9.3
9.2, 9.3
5.6
6 2, 12.2, 12.3
7 1, 2
7.1 2
7.2 2
8.1 1, 3, 9.1, 12.8.2
8.2 1, 3, 9.1, 12.8.2
9 9.1, 12.7.4
10 13.2
11 1, 2, 3
11.1 2
9.2
11.2
11.3 – 11.11 2, 9.2, 12.7.1
3
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EN ISO 7396-2:2007 (E)
Clause(s)/Sub-clause(s) of Essential Requirements (ERs) of EU Qualifying
this International Standard Directive 93/42/EEC remarks/Notes
11.12 4, 7.2, 7.5
11.13 7.2, 7.5, 7.6
12 1, 2, 3
12.4.1 7.2, 7.5
12.4.2 9.2, 12.6, 12.7.1, 13.2
12.4.3 9.1, 12.7.4
12.4.4 2, 3, 9.2
12.4.5 3, 12.8.2
12.4.6 3
12.4.7 2, 12.2, 12.3
12.4.8 4, 7.2, 7.5, 7.6
12.4.9 9.1, 12.7.4
13 9.1, 13.1, 13.3 a), 13.3 i), 13.3 j), 13.6 a),
13.6 c), 13.6 d)
WARNING: Other requirements and other EU Directives may be applicable to the products
falling within the scope of this standard.
4
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INTERNATIONAL ISO
STANDARD 7396-2
Second edition
2007-04-01
Medical gas pipeline systems —
Part 2:
Anaesthetic gas scavenging disposal
systems
Réseaux de distribution de gaz médicaux —
Partie 2: Réseaux d'évacuation de gaz d'anesthésie non réutilisables
Reference number
ISO 7396-2:2007(E)
©
ISO 2007
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ISO 7396-2:2007(E)
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ii © ISO 2007 – All rights reserved
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ISO 7396-2:2007(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope. 1
2 Normative references. 1
3 Terms and definitions. 2
4 General requirements. 6
4.1 Safety. 6
4.2 Alternative construction . 6
4.3 Materials. 6
4.4 Continuity of operation . 7
5 Power device. 7
6 Indicating systems. 8
7 Pipelines, connecting assemblies and disposal hoses. 8
8 Disposal system characteristics and test methods for pressure and flow . 9
8.1 Requirements. 9
8.2 Test methods for pressure and flow. 10
8.3 Means to prevent backflow. 12
9 Terminal units . 12
10 Marking and colour coding. 12
10.1 Marking. 12
10.2 Colour coding. 13
10.3 Test for durability. 13
11 Pipeline installation. 13
12 Testing, commissioning and certification. 15
12.1 General. 15
12.2 General requirements for tests . 15
12.3 Tests, inspections and checks. 15
12.4 Requirements for tests, inspections and checks listed in 12.3 . 15
12.5 Certification of the system. 16
12.6 Extensions or modifications. 17
13 Information to be supplied by the manufacturer. 17
13.1 General. 17
13.2 Instructions for use . 17
13.3 Operational management information. 18
13.4 “As-installed” drawings . 18
13.5 Electrical diagrams. 18
Annex A (informative) Guidelines for power devices consisting of fans, blowers or dedicated
vacuum pumps. 19
Annex B (informative) Example of procedure for testing and commissioning. 20
Annex C (informative) Typical forms for certification of AGS disposal systems. 23
Annex D (informative) Risk management checklist. 36
Annex E (informative) Rationale . 44
Bibliography . 45
© ISO 2007 – All rights reserved iii
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ISO 7396-2:2007(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 7396-2 was prepared by the European Committee for Standardization (CEN) Technical Committee
CEN/TC 215, Respiratory and anaesthetic equipment, in collaboration with Technical Committee ISO/TC 121,
Anaesthetic and respiratory equipment, Subcommittee SC 6, Medical gas systems, in accordance with the
Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 7396-2:2000), which has been technically
revised.
ISO 7396 consists of the following parts, under the general title Medical gas pipeline systems:
⎯ Part 1: Pipeline systems for compressed medical gases and vacuum
⎯ Part 2: Anaesthetic gas scavenging disposal systems
iv © ISO 2007 – All rights reserved
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ISO 7396-2:2007(E)
Introduction
Anaesthetic gas scavenging systems (AGSS) are used to reduce occupational exposure to anaesthetic gases
and vapours.
The anaesthetic gas scavenging system comprises three main parts:
⎯ a transfer system,
⎯ a receiving system, and
⎯ a disposal system.
A schematic diagram of typical anaesthetic gas scavenging systems is shown in Figure 1. Requirements for
receiving systems and transfer systems are specified in ISO 8835-3. Type-specific connections for terminal
units are specified in ISO 9170-2. In this part of ISO 7396, specifications and test procedures are given to
ensure compatibility between the components of the system.
This part of ISO 7396 specifies requirements for pipelines for anaesthetic gas scavenging systems for
anaesthetic gases and vapours. It is intended for use by those persons involved in the design, construction,
inspection and operation of healthcare facilities treating human beings. It is advisable that those persons
involved in the design, manufacture and testing of equipment intended to be connected to pipeline systems
also be aware of the contents of this part of ISO 7396.
Specific components are used for scavenging terminal units and for other connectors which are intended to be
used by the operator. In addition, the system is tested and certified to operate at safe flows and without
leakage. It is also intended to address issues of patient safety.
The objectives of this part of ISO 7396 are to ensure the following:
a) avoidance of cross connections between different pipeline systems;
b) continuity of function of the system;
c) use of suitable materials;
d) cleanliness of components;
e) correct installation;
f) provision of indicating system(s);
g) correct marking of the pipeline system and components;
h) testing, commissioning and certification;
i) correct operational management.
Annex E contains rationale statements for some of the requirements of this part of ISO 7396. It is included to
provide additional insight into the reasoning that led to the requirements and recommendations that have been
incorporated in this part of ISO 7396. The clauses and subclauses marked with (*) after their number have
corresponding rationale contained in Annex E.
© ISO 2007 – All rights reserved v
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INTERNATIONAL STANDARD ISO 7396-2:2007(E)
Medical gas pipeline systems —
Part 2:
Anaesthetic gas scavenging disposal systems
1 Scope
This part of ISO 7396 specifies requirements for the design, installation, function, performance, documentation,
testing and commissioning of anaesthetic gas scavenging disposal systems to ensure patient safety and to
minimize exposure of the operator and other persons to anaesthetic gases and vapours. It includes
requirements for the power device, pipeline system, performance, non-interchangeability between key
components and avoidance of cross connections between anaesthetic gas scavenging (AGS) disposal
systems and medical gas and vacuum pipeline systems.
NOTE In this part of ISO 7396, the term “pipeline” refers exclusively to pipelines that are part of a dedicated
anaesthetic gas scavenging system (AGSS).
This part of ISO 7396 is applicable only to those disposal systems intended to be connected via AGSS
terminal units conforming to ISO 9170-2 and to AGSS receiving systems conforming to ISO 8835-3.
This part of ISO 7396 also applies to:
⎯ extensions of existing AGSS disposal systems;
⎯ modifications of existing AGSS disposal systems;
⎯ modifications or replacement of power devices.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 5359, Low-pressure hose assemblies for use with medical gases
ISO 7396-1:2007, Medical gas pipeline systems — Part 1: Pipeline systems for compressed medical gases
and vacuum
1)
ISO 8835-3:— , Inhalational anaesthesia systems — Part 3: Transfer and receiving systems of active
anaesthetic gas scavenging systems
ISO 9170-2, Terminal units for medical gas pipeline systems — Part 2: Terminal units for anaesthetic gas
scavenging systems
1) To be published. (Revision of ISO 8835-3:1997.)
© ISO 2007 – All rights reserved 1
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ISO 7396-2:2007(E)
ISO 14971, Medical devices — Application of risk management to medical devices
ISO 15001, Anaesthetic and respiratory equipment — Compatibility with oxygen
EN 1041, Information supplied by the manufacturer with medical devices
EN 13348, Copper and copper alloys — Seamless, round copper tubes for medical gases or vacuum
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
AGSS socket
female part of a terminal unit which is either integral or attached to the base block by a type-specific interface,
and which contains the type-specific connection point
3.2
AGSS terminal unit
inlet assembly in an AGSS at which the operator makes connections and disconnections
3.3
AGSS terminal unit base block
part of an AGSS terminal unit which is attached to the pipeline disposal system
3.4
AGSS type 1 terminal unit
connection point between the receiving system and the disposal system at which an operator makes
connections and disconnections
See Figure 1.
3.5
AGSS type 1H terminal units
AGSS type 1 terminal unit to be used in high-flow disposal systems
3.6
AGSS type 1L terminal units
AGSS type 1 terminal unit to be used in low-flow disposal systems
3.7
AGSS type 2 terminal unit
connection point between the power device or the disposal hose and the remainder of the disposal system at
which an operator makes connections and disconnections
See Figure 1.
3.8
AGSS type-specific
having characteristics which prevent interchangeability and thereby allow assignment to one AGSS type only
3.9
AGSS type-specific connection point
part of the AGSS socket which is the receptor for an AGSS type-specific probe
2 © ISO 2007 – All rights reserved
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ISO 7396-2:2007(E)
3.10
air compressor system
source of supply with compressor(s) designed to provide medical air and/or air for driving surgical tools and/or
air for AGSS
NOTE Different names or symbols are used for air for driving surgical tools, such as: instrument air, surgical air, air
motor, air - 700 and air - 800.
3.11
anaesthetic gas scavenging system
AGSS
complete system which is connected to the exhaust port(s) of a breathing system or other equipment for the
purpose of conveying expired and/or excess anaesthetic gases and vapours to an appropriate point of discharge
NOTE Functionally, an AGSS comprises three different parts: a transfer system, a receiving system and a disposal
system. These three functionally discrete parts can be either separate or sequentially combined in part or in total. In
addition, one or more parts of an AGSS can be combined with a breathing system or other equipment (e.g. an anaesthetic
ventilator) to include the transfer system, or transfer and receiving systems.
3.12
commissioning
proof of function to verify that the agreed specification is met and is accepted by the user or his representative
3.13
disposal hose
part of an AGSS which transfers expired and/or excess anaesthetic gases and vapours from the power device
to the probe of an AGSS type 2 terminal unit
3.14
disposal system
means by which the expired and/or excess anaesthetic gases and vapours are conveyed from the receiving
system to an appropriate point of discharge
NOTE A point of discharge can be, for example, the exterior of a building or a non-recirculating extract ventilation
system.
3.15
diversity factor
factor which represents the maximum proportion of terminal units in a defined clinical area which will be used
at the same time, at flowrates defined in agreement with the management of the healthcare facility
3.16
high-flow disposal system
disposal system which is intended to operate with a high-flow transfer and receiving system complying with
ISO 8835-3
3.17
high-flow transfer and receiving system
transfer and receiving system complying with ISO 8835-3 which connects through an AGSS type 1H terminal
unit as specified in ISO 9170-2 to a high-flow disposal system complying with this part of ISO 7396
3.18
low-flow disposal system
disposal system which is intended to operate with a low-flow transfer and receiving system complying with
ISO 8835-3
3.19
low-flow transfer and receiving system
transfer and receiving system complying with ISO 8835-3 which connects through an AGSS type 1L terminal
unit as specified in ISO 9170-2 to a low-flow disposal system complying with this part of ISO 7396
© ISO 2007 – All rights reserved 3
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ISO 7396-2:2007(E)
3.20
manufacturer
natural or legal person with responsibility for the design, manufacture, packaging and labelling of a device
before it is placed on the market under his own name, regardless of whether these operations are carried out
by that person himself or on his behalf by a third party
3.21
maximum operating pressure
maximum pressure at which a terminal unit is designed to operate
NOTE Operating pressure for a type 1 terminal unit is negative and for a type 2 terminal unit it is positive.
3.22
maximum test pressure
maximum pressure to which a terminal unit is designed to be subjected during pipeline pressure testing
3.23
non-return valve
valve which permits flow in one direction only
3.24
power device
part of an AGS disposal system that provides flow and pressure for scavenging
3.25
probe
non-interchangeable male component designed for acceptance by, and retention in, a socket
3.26
quick connector
pair of type-specific components which can be easily and rapidly joined together by a single action of one or both
hands without the use of tools
3.27
receiving hose
part of an AGSS which transfers expired and/or excess anaesthetic gases and vapours from the receiving system
to the disposal system
3.28
receiving system
part of an AGSS which provides an interface between the transfer system and the disposal system
3.29
shut-off valve
valve which prevents flow in both directions when closed
3.30
single fault condition
condition in which a single means for protection against a safety hazard in equipment is defective or a single
external abnormal condition is present
NOTE Maintenance of equipment is considered a normal condition.
4 © ISO 2007 – All rights reserved
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ISO 7396-2:2007(E)
Key
1 apparatus such as anaesthetic breathing system or 11 permanent connection
anaesthetic ventilator and integral transfer/receiving
12 point of discharge
system and power device
13 flexible hose or pendant
2 apparatus such as anaesthetic breathing system or 14 disposal hose
anaesthetic ventilator
15 limit of breathing system or anaesthetic ventilator
3 transfer/receiving system and power device 16 limits of transfer system
4 apparatus such as anaesthetic breathing system and 17 limits of receiving system
integral transfer/receiving system
18 limit of disposal system
5 permanent or proprietary connector 19 proprietary connection (functionally specific)
6 receiving hose 20 30 mm conical connection
7 breathing system or anaesthetic ventilator 21 type 1 terminal unit probe/socket
8 transfer tube 22 type 2 terminal unit probe/socket
9 receiving system
10 power device
NOTE 1 Type 1 terminal unit probe/socket is for negative pressure. Type 2 terminal unit probe/socket is for positive
pressure.
NOTE 2 The limit between the receiving system and the disposal system as shown does not necessarily coincide with
an actual physical limit such as a wall. In the arrangement shown, a terminal unit on a wall would be located on the inlet to
the power device.
Figure 1 — Schematic diagram of typical AGSS connections
© ISO 2007 – All rights reserved 5
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ISO 7396-2:2007(E)
3.31
system design flow
flow calculated from the maximum flow requirement of the healthcare facility and corrected by the diversity
factor(s)
3.32
transfer system
part of an AGSS which transfers expired and/or excess anaesthetic gases from the exhaust port of the breathing
system or other equipment to the receiving system
3.33
transfer tube
part of an AGSS which transfers expired and/or excess anae
...
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