DIN 3535-6:2019-04 Gaskets for gas supply - Part 6: Gasket material based on fibres, graphite or polytetrafluoroethylene (PTFE) for gas valves, gas appliances and gas mains / Note: This standard is part of the DVGW body of rules.
2019DIN 3535-6:2019-04 Gaskets for gas supply - Part 6: Gasket material based on fibres, graphite or polytetrafluoroethylene (PTFE) for gas valves, gas appliances and gas mains / Note: This standard is part of the DVGW body of rules.
2011DIN 3535-6:2011 Gaskets for gas supply - Part 6: Gasket materials based on fibres, graphite or polytetrafluoroethylene (PTFE) for gas valves, gas appliances and gas mains
1999DIN 3535-6:1999 Gaskets for gas supply - Part 6: Gasket materials based on synthetic fibres, graphite or polytetrafluoroethylen (PTFE) for gas valves, gas appliances and gas mains