ISO 9090:2019 PDF

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.

ISO 9090:2019 Referenced Document

ISO 15296 Gas welding equipment - Vocabulary
ISO 2503 Gas welding equipment — Pressure regulators and pressure regulators with flow-metering devices for gas cylinders used in welding, cutting and allied processes up to 300 bar (30 MPa) AMENDMENT 1

2019 ISO 9090:2019 Gas tightness of equipment for gas welding and allied processes
1989 ISO 9090:1989 Gas tightness of equipment for gas welding and allied processes