DIN 32509:2009-04 Hand-operated shut-off valves for welding, cutting and allied processes - Type of construction, safety requirements, tests / Note: DIN 32509 (1998-07) remains valid alongside this standard until 2009-09-30.
2009DIN 32509:2009-04 Hand-operated shut-off valves for welding, cutting and allied processes - Type of construction, safety requirements, tests / Note: DIN 32509 (1998-07) remains valid alongside this standard until 2009-09-30.
2009DIN 32509:2009 Hand-operated shut-off valves for welding, cutting and allied processes - Type of construction, safety requirements, tests
1998DIN 32509:1998 Hand-operated shut-off valves for welding, cutting and allied processes - Type of construction, safety requirements, tests