DIN EN 837-1:1997-02 Pressure gauges - Part 1: Bourdon tube pressure gauges; dimensions, metrology, requirements and testing; German version EN 837-1:1996
1997DIN EN 837-1:1997-02 Pressure gauges - Part 1: Bourdon tube pressure gauges; dimensions, metrology, requirements and testing; German version EN 837-1:1996
1997DIN EN 837-1:1997 Pressure gauges - Part 1: Bourdon tube pressure gauges; dimensions, metrology, requirements and testing; German version EN 837-1:1996