Anaesthetic and respiratory equipment - Dimensions of non-interchangeable screw-threaded (NIST) low-pressure connectors for medical gases (ISO 18082:2014)

ISO 18082:2014 specifies the dimensions, the allocation and marking of non-interchangeable screw-threaded (NIST) connectors intended to be used at operating pressures up to 1 400 kPa, and for vacuum systems at pressures not greater than 60 kPa absolute.
ISO 18082:2014 specifies NIST connectors intended for use with the following medical gases:
oxygen;
nitrous oxide;
medical air;
helium;
carbon dioxide;
xenon;
specified mixtures of the gases listed above;
oxygen-enriched air;
air for driving surgical tools;
nitrogen for driving surgical tools;
use with vacuum.

Anästhesie- und Beatmungsgeräte - Maße von nichtverwechselbaren Verbindungsstücken mit Schraubgewinde (NIST) für niedrigen Druck zur Verwendung mit medizinischen Gasen (ISO 18082:2014)

1.1 Diese Internationale Norm legt die Maße und die Zuordnung von nichtverwechselbaren
Verbindungsstücken mit Schraubgewinde (NIST) fest, die zur Verwendung bei einem Nenn-Betriebsdruck von
nicht mehr als 1 400 kPa vorgesehen sind, und bei Vakuum für einen Druck zwischen 90 kPa (Unterdruck)
und 500 kPa.
1.2 Diese Internationale Norm legt die Anforderungen für NIST-Verbindungsstücke fest, die zur
Verwendung mit den folgenden medizinischen Gasen vorgesehen sind:
- Sauerstoff;
- Lachgas;
- medizinische Luft;
- Helium;
- Kohlendioxid;
- Xenon;
- spezifizierte Gemische der oben genannten Gase;
- mit Sauerstoff angereicherte Luft;
- Luft zum Betreiben chirurgischer Werkzeuge;
- Stickstoff zum Betreiben chirurgischer Werkzeuge;
und zur Verwendung mit Vakuum.
ANMERKUNG Niederdruckschlauchleitungssysteme zur Verwendung mit medizinischen Gasen sind in ISO 5359
festgelegt.
1.3 Die Informationen des Herstellers sind nicht Gegenstand dieser Internationalen Norm, da Informationen
über die Anwendung von NIST-Verbindungsstücken vom Hersteller jedes medizinischen Gerätes
bereitgestellt werden, an das die Verbindungsstücke fest angebracht sind.
ANMERKUNG Umweltgesichtspunkte werden in den entsprechenden Internationalen Normen für die medizinischen
Geräte betrachtet, an die die NIST-Verbindungsstücke angebracht sind.

Matériel d'anesthésie et de réanimation respiratoire - Dimensions des raccords basse pression à tête filetée non interchangeables (NIST) pour gaz médicaux (ISO 18082:2014)

L'ISO 18082:2014 spécifie les dimensions, l'affectation et le marquage des raccords à tête filetée non interchangeables (NIST) destinés à être utilisés à des pressions de service allant jusqu'à 1 400 kPa et, pour les systèmes de vide, à des pressions absolues inférieures à 60 kPa.
L'ISO 18082:2014 spécifie les exigences relatives aux raccords NIST destinés à être utilisés avec les gaz médicaux suivants:
oxygène;
protoxyde d'azote;
air médical;
hélium;
dioxyde de carbone;
xénon;
mélanges spécifiés des gaz précités;
air enrichi en oxygène;
air pour les instruments chirurgicaux;
azote pour les instruments chirurgicaux;
et pour l'utilisation avec le vide.

Anestezijska in dihalna oprema - Mere nizkotlačnih priključkov z navojem, ki se ne menjajo, za delo z medicinskimi plini (NIST) (ISO 18082:2014)

Standard EN ISO 18082 določa mere in dodelitev nizkotlačnih priključkov z navojem, ki se ne menjajo (NIST), namenjenih za uporabo pri nominalnih delovnih tlakih, manjših od 1 400 kPa in v vakuumu med 90 kPa podatmosferskega tlaka in 500 kPa pozitivnega tlaka. Ta mednarodni standard določa nizkotlačne priključke z navojem, ki se ne menjajo, za delo z naslednjimi medicinskimi plini: – kisik, – dušikov oksid, – medicinski zrak, – helij, – ogljikov dioksid, – ksenon, – določene mešanice zgoraj naštetih plinov, – s kisikom obogaten zrak, – zrak za pogon kirurških instrumentov, – dušik za pogon kirurških instrumentov in za uporabo v vakuumu. Informacije, ki jih mora posredovati proizvajalec, so izključene iz področja uporabe tega mednarodnega standarda, ker informacije o uporabi nizkotlačnih priključkov z navojem, ki se ne menjajo, posreduje proizvajalec medicinskega pripomočka s trajno pritrjenimi priključki.

General Information

Status
Published
Public Enquiry End Date
19-Feb-2013
Publication Date
04-Sep-2014
Technical Committee
VAZ - Healthcare
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
06-Aug-2014
Due Date
11-Oct-2014
Completion Date
05-Sep-2014

Relations

Effective Date
01-Oct-2014
Effective Date
01-Mar-2018

Overview

EN ISO 18082:2014 (ISO 18082:2014) defines the dimensions, allocation and marking of non‑interchangeable screw‑threaded (NIST) low‑pressure connectors used in anaesthetic and respiratory equipment for medical gases. Adopted by CEN as a European standard, it applies to NIST connectors intended for operating pressures up to 1 400 kPa and to vacuum systems at pressures not greater than 60 kPa absolute. The standard helps maintain gas specificity and reduce the risk of dangerous cross‑connections in medical gas systems.

Key topics

  • Connector scope and allocation
    • Specifies gas‑specific allocation of NIST connector types (e.g., oxygen, nitrous oxide, medical air, helium, carbon dioxide, xenon, mixtures, oxygen‑enriched air, surgical tool drive gases, vacuum).
    • Provides an allocation table mapping connector references (A1–C24) to gas services.
  • Dimensional requirements and tolerances
    • Precise dimensional drawings and tabulated tolerances for body, nipple and nut components (indexing diameters, thread form, depths).
    • Dimensions for compatible “O” rings including internal and section diameters and recommended hardness.
  • Marking and durability
    • Requirements for gas identification marking positions and tests for marking durability (visual inspection and measurement to verify compliance).
  • Verification and testing
    • Compliance to be verified by measurement and visual inspection; surface finish and critical faces are defined to ensure gas tightness and correct engagement.
  • Scope exclusions
    • Does not cover DISS (Diameter Index Safety System), SIS (Sleeve Indexed System) or quick connectors specified in other standards.

Applications

  • Manufacturers of anaesthetic machines, ventilators, pressure regulators, hose assemblies and flow‑meters use this standard when designing or producing NIST low‑pressure connectors.
  • Medical device designers and product development teams ensure connector compatibility and patient safety by following the dimensional allocation.
  • Biomedical engineers, hospital procurement and maintenance teams rely on the standard to select and verify gas‑specific connectors and to prevent cross‑connection errors.
  • Test laboratories and conformity assessors use the dimensional and marking requirements for inspection and certification.

Related standards

  • ISO 5359 - low‑pressure hose assemblies for medical gases (referenced)
  • ISO 9170‑1 - terminal units and quick connectors (excluded from scope)
  • ISO 4135 - terminology for medical gases
  • BS 4518 - referenced for “O” ring identification
  • Supersedes EN 15908:2010 (European adoption)

EN ISO 18082:2014 is essential for anyone involved in the design, manufacture, testing or maintenance of medical gas connectors seeking to ensure safety, traceability and regulatory compliance.

Standard

SIST EN ISO 18082:2014

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Frequently Asked Questions

SIST EN ISO 18082:2014 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Anaesthetic and respiratory equipment - Dimensions of non-interchangeable screw-threaded (NIST) low-pressure connectors for medical gases (ISO 18082:2014)". This standard covers: ISO 18082:2014 specifies the dimensions, the allocation and marking of non-interchangeable screw-threaded (NIST) connectors intended to be used at operating pressures up to 1 400 kPa, and for vacuum systems at pressures not greater than 60 kPa absolute. ISO 18082:2014 specifies NIST connectors intended for use with the following medical gases: oxygen; nitrous oxide; medical air; helium; carbon dioxide; xenon; specified mixtures of the gases listed above; oxygen-enriched air; air for driving surgical tools; nitrogen for driving surgical tools; use with vacuum.

ISO 18082:2014 specifies the dimensions, the allocation and marking of non-interchangeable screw-threaded (NIST) connectors intended to be used at operating pressures up to 1 400 kPa, and for vacuum systems at pressures not greater than 60 kPa absolute. ISO 18082:2014 specifies NIST connectors intended for use with the following medical gases: oxygen; nitrous oxide; medical air; helium; carbon dioxide; xenon; specified mixtures of the gases listed above; oxygen-enriched air; air for driving surgical tools; nitrogen for driving surgical tools; use with vacuum.

SIST EN ISO 18082:2014 is classified under the following ICS (International Classification for Standards) categories: 11.040.10 - Anaesthetic, respiratory and reanimation equipment. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN ISO 18082:2014 has the following relationships with other standards: It is inter standard links to SIST EN 15908:2010, SIST EN ISO 18082:2014/A1:2018. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

SIST EN ISO 18082:2014 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.

SIST EN ISO 18082:2014 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


SLOVENSKI STANDARD
01-oktober-2014
1DGRPHãþD
SIST EN 15908:2010
$QHVWH]LMVNDLQGLKDOQDRSUHPD0HUHQL]NRWODþQLKSULNOMXþNRY]QDYRMHPNLVHQH
PHQMDMR]DGHOR]PHGLFLQVNLPLSOLQL 1,67  ,62
Anaesthetic and respiratory equipment - Dimensions of non-interchangeable screw-
threaded (NIST) low-pressure connectors for medical gases (ISO 18082:2014)
Anästhesie- und Beatmungsgeräte - Maße von nichtverwechselbaren
Verbindungsstücken mit Schraubgewinde (NIST) für niedrigen Druck zur Verwendung
mit medizinischen Gasen (ISO 18082:2014)
Matériel d'anesthésie et de réanimation respiratoire - Dimensions des raccords basse
pression à tête filetée non interchangeables (NIST) pour gaz médicaux (ISO
18082:2014)
Ta slovenski standard je istoveten z: EN ISO 18082:2014
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.

EUROPEAN STANDARD
EN ISO 18082
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2014
ICS 11.040.10 Supersedes EN 15908:2010
English Version
Anaesthetic and respiratory equipment - Dimensions of non-
interchangeable screw-threaded (NIST) low-pressure connectors
for medical gases (ISO 18082:2014)
Matériel respiratoire et anesthésique - Raccords basse Anästhesie- und Beatmungsgeräte - Maße von
pression à tête filetée non interchangeables (NIST) pour nichtverwechselbaren Verbindungsstücken mit
gaz médicaux (ISO 18082:2014) Schraubgewinde (NIST) für niedrigen Druck zur
Verwendung mit medizinischen Gasen (ISO 18082:2014)
This European Standard was approved by CEN on 22 May 2014.

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-CENELEC 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-CENELEC Management Centre has the same
status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 18082:2014 E
worldwide for CEN national Members.

Contents Page
Foreword .3
Foreword
This document (EN ISO 18082:2014) has been prepared by Technical Committee ISO/TC 121 “Anaesthetic
and respiratory equipment” in collaboration with Technical Committee CEN/TC 215 “Respiratory and
anaesthetic equipment” the secretariat of which is held by BSI.
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 December 2014, and conflicting national standards shall be withdrawn
at the latest by December 2014.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 15908:2010.
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, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 18082:2014 has been approved by CEN as EN ISO 18082:2014 without any modification.
INTERNATIONAL ISO
STANDARD 18082
First edition
2014-06-15
Anaesthetic and respiratory
equipment — Dimensions of non-
interchangeable screw-threaded
(NIST) low-pressure connectors for
medical gases
Matériel respiratoire et anesthésique — Raccords basse pression à
tête filetée non interchangeables (NIST) pour gaz médicaux
Reference number
ISO 18082:2014(E)
©
ISO 2014
ISO 18082:2014(E)
© ISO 2014
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2014 – All rights reserved

ISO 18082:2014(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Terms and definitions . 1
3 Dimensions and allocation of NIST connectors . 2
4 Marking .11
5 Test for durability of markings .11
Bibliography .12
ISO 18082:2014(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directives
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received. www.iso.org/patents
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT), see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 121, Anaesthetic and respiratory equipment,
Subcommittee SC 1, Breathing attachments and anaesthetic machines.
This is the first edition of this International Standard that contains the requirements for non-
interchangeable screw threaded (NIST) connectors for use with medical gases previously included in
ISO 5359:2008 and ISO 5359:2008/Amd.1:2011.
iv © ISO 2014 – All rights reserved

ISO 18082:2014(E)
Introduction
This International Standard has been prepared in response to the need for a safe method of connecting
medical equipment intended to administer medical gases to patients or power medical devices.
Medical gases are stored in cylinders or cryogenic vessels, or can be produced on site; several medical
devices (e.g. pressure regulators, hose assemblies, flow-metering devices, lung ventilators, anaesthetic
workstations) can be fitted between the source of supply and the medical device. At each interface gas-
specific connectors are needed to ensure that the intended medical gas is administered to the patient.
While the desirability of achieving agreement on a single International Standard for screw-threaded
connectors has never been in doubt, the present pattern of usage has made such agreement impossible.
Nevertheless, fears that proliferation of individual national standards or practices will eventually result
in potentially dangerous cross-connection between components for different gases have led to the choice
of several different connector systems, all of which are intended to be incompatible with each other.
This International Standard specifies the dimensions and the allocation of non-interchangeable screw
threaded (NIST) connectors for use with medical gases.
This International Standard does not specify the dimensions and the allocation of
[9]
— diameter index safety system (DISS) connectors specified in CGA V-5 ,
[7]
— sleeve inde
...

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