Plastics piping systems - Fittings, valves and ancillaries - Determination of gaseous flow rate/pressure drop relationships (ISO 17778:2015); German version EN ISO 17778:2015— 10 стр.
Plastics piping systems - Fittings, valves and ancillaries - Determination of gaseous flow rate/pressure drop relationships (ISO/DIS 17778:2013); German version prEN ISO 17778:2013
Plastics piping systems - Fittings, valves and ancillaries - Determination of gaseous flow rate/pressure drop relationships; German version EN 12117:1997— 5 стр.
Plastics piping systems - Fittings, valves and ancillaries - Determination of gaseous flow rate/pressure drop relationships; German version EN 12117:1997— 5 стр.