DIN EN 730-1:2003-01

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Design and materials
  4.1 Connection
  4.2 Materials
5 Requirements
  5.1 General
  5.2 Gas tightness
  5.3 Pressure resistance
  5.4 Flame arrestor
  5.5 Flame arrestor with non-return value
  5.6 Flame arrestor with temperature sensitive
       cut-off valve
  5.7 Flame arrestor with pressure-sensitive cut-off
       valve
  5.8 Other multifunctional safety devices
6 Methods for type testing
  6.1 General
  6.2 Accuracy of pressure and flow measurements
  6.3 Test gases
  6.4 Gas tightness test
  6.5 Pressure resistance test
  6.6 Non-return valve test
  6.7 Flame arrestor test
  6.8 Temperature-sensitive cut-off valve test
  6.9 Pressure-sensitive cut-off valve test
  6.10 Internal leakage test for cut-off valves
7 Further tests
8 Manufacturer's instructions
9 Marking
Annex A (informative) - Gas flow measurement
      A.1 General
      A.2 Procedure
Annex B (informative) - Third party testing information
      B.1 General
      B.2 Samples and documentation
Annex C (informative) - Production tests
      C.1 General
      C.2 Production flashback test

This standard is included in DIN DVS Handbook 65. Describes the general requirements and tests for safety devices for fuel gases and oxygen or compressed air incorporating a flame (flashback) arrestor used downstream of manifold, cylinder and (or) pipeline outlet regulators, and upstream of blowpipes for welding, cutting and allied processes.