Heat exchangers - Water to water heat exchangers for district heating - Test procedures for establishing the performance data; German version EN 1148:1998— 8 стр.
Aerospace series - Bearings, airframe rolling - Rigid single row ball bearings in steel with flanged alignment housing, cadmium plated - Dimensions and loads; German and English version EN 3059:2007— 22 стр.
Heat exchangers - Water to water heat exchangers for district heating - Test procedures for establishing the performance data; German version EN 1148:1998/A1:2005— 7 стр.