Terminal units for medical gas pipeline systems – Part 1: Terminal units for use with compressed medical gases and vacuum (ISO 9170-1:2008)
Abstract
ISO 9170-1:2008 applies to:
- terminal units intended for use in medical gas pipeline systems in accordance with ISO 7396-1, for use with the following medical gases:
- oxygen,
- nitrous oxide;
- medical air;
- carbon dioxide;
- oxygen/nitrous oxide mixture [50 %/50 % (by volume)];
- terminal units intended for use in medical gas pipeline systems in accordance with ISO 7396-1, for use with the following gases and services:
- oxygen-enriched air;
- air for driving surgical tools;
- nitrogen for driving surgical tools;
- vacuum.
It is intended especially to ensure the gas-specific assembly of terminal units and to prevent their interchange between different gases and services.
ISO 9170-1:2008 specifies requirements for terminal units for supply and disposal of nitrogen or air for driving surgical tools and requirements for probes intended to be connected to the gas-specific connection point which is part of the terminal unit.
DIN EN ISO 9170-1:2008-10 (E)
Terminal units for medical gas pipeline systems – Part 1: Terminal units for use with
compressed medical gases and vacuu m (ISO 9170-1:2008)
Contents Page
Foreword ……………………………………………………………………………………………………………………………………….3
Introduction ……………………………………………………………………………………………………………………………………4
1 Scope ……………………………………………………………………………………………………………………………..5
2 * Normative references ……………………………………………………………………………………………………6
3 Terms and definitions ……………………………………………………………………………………………………..6
4 General requirements ……………………………………………………………………………………………………10
4.1 Safety ……………………………………………………………………………………………………………………………10
4.2 * Alternative construction ……………………………………………………………………………………………..10
4.3 Materials ……………………………………………………………………………………………………………………….10
4.4 Design requirements ……………………………………………………………………………………………………..11
4.5 Constructional requirements …………………………………………………………………………………………14
5 Test methods ………………………………………………………………………………………………………………..15
5.1 General …………………………………………………………………………………………………………………………15
5.2 Test for endurance ………………………………………………………………………………………………………..15
5.3 Test for pressure drop …………………………………………………………………………………………………..16
5.4 Test for connection force and torque …………………………………………………………………………….17
5.5 Test for disconnection force and torque ………………………………………………………………………..18
5.6 Test for mechanical strength …………………………………………………………………………………………18
5.7 Test for leakage …………………………………………………………………………………………………………….18
5.8 Test for gas specificity ………………………………………………………………………………………………….19
5.9 Test for effective connection of probes ………………………………………………………………………….19
5.10 Test for durability of markings and colour coding ………………………………………………………….19
6 Marking, colour coding and packaging ………………………………………………………………………….19
6.1 Marking …………………………………………………………………………………………………………………………19
6.2 Colour coding ……………………………………………………………………………………………………………….20
6.3 Packaging …………………………………………………………………………………………………………………….20
7 Information to be supplied by the manufacturer …………………………………………………………….20
Annex A (informative) Rationale ……………………………………………………………………………………………………21
Annex B (informative) Environmental aspects ………………………………………………………………………………22
Annex C (informative) Special national and regional conditions for electrical installations …………….23
Annex ZA (informative) Correspondence between this International Standard and Directive
93/42/EEC ……………………………………………………………………………………………………………………..24
Bibliography …………………………………………………………………………………………………………………………………26