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ISO 9090:2019

Gas tightness of equipment for gas welding and allied processes
25 tet 2019

General information

90.93     22 maj 2025

ISO

ISO/TC 44/SC 8

International Standard

25.160.30  

anglisht   frëngjisht  

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Scope

This document specifies the maximum external gas leakage rates which are acceptable for equipment used for welding, cutting and allied processes and provides the procedures of measurement.
It applies to individual components which are used in the gas supply to a blowpipe from the connecting point of the hose (outlet of the cylinder valve or connecting point to a gas supply plant). It does not apply to gas supply plant.
NOTE Specific requirements on the test method and conditions/procedure for measurement of the maximum external leakages can be given in individual standards, e.g. ISO 9012 for air-aspirated hand blowpipes. Concerning the method and the conditions to be applied, the individual standard takes precedence over this document. The maximum external leakages according to this document apply.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 9090:1989

NOW

PUBLISHED
ISO 9090:2019
90.93 Standard confirmed
22 maj 2025