Draft International Standard
ISO/DIS 5175-3
Gas welding equipment — Safety devices — Part 3: Decomposition blockers for low pressure acetylene
Reference number
ISO/DIS 5175-3
Edition 1
International Standard
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ISO/DIS 5175-3
This Draft International Standard is in the enquiry phase with ISO members.

ISO/DIS 5175-3

ISO/DIS 5175-3
CHF 63
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This part of ISO 5175 specifies the general requirements and tests for decomposition blockers for acetylene downstream of pressure regulators in manifold systems. Decomposition blockers can be used in the low pressure section up to 0,15 MPa (see ISO 14114) e.g. in pipelines, outlet points or for the protection of low pressure sections in big pipe systems. Decomposition blockers can only be used in sections with pure acetylene. The possible backflow of oxygen or air into the section there the decomposition blocker is installed, must be prevented by a non-return valve, downstream of the decomposition blocker.

General information

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  • ISO/TC 44/SC 8
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