Hoses
steel wire braiding or spirals, which are embedded in intermediate layers of elastic materials ( Figure S 24 ). The hoses in hydraulic systems are wearing parts, whose strength is reduced, amongst other things [...] DIN 20 024 Hoses and hose line testing in fluid technology Safety rules for hydraulic hose lines ZH 1/74, German Federation of Institutions for Statutory Accident Insurance and Prevention
Calculating the sound power
the sound power is performed amongst other things in accordance with the DIN 45 635 Part 1 framework ( Figure S 11 ) and DIN EN 23 741. The sound power of a machine calculated under measurement conditions
Foreword to the online edition of the O+P-Fachlexikon "Fluidtechnik von A bis Z" (O+P technical glossary "Fluid technology from A to Z")
systems for cars, on presses or in servo hydraulic follow up controls for aircraft systems. In the 1950s fluid technology started to be used increasingly in machine and plant engineering, in mobile machinery [...] subject at colleges and universities – unlike electrical engineering. As a consequence up until the 1970s hydraulic components and systems were primarily developed by innovative engineers based on customer [...] O+P-Fachlexikon "Fluidtechnik von A bis Z" (O+P technical glossary "Fluid technology from A to Z"), the 1st edition of which was published in 1989 by Vereinigte Fachverlage in Mainz, Hans Ebertshäuser made