SR EN ISO 7096:2020

1.1 This document specifies, in accordance with ISO 10326-1:2016, a laboratory method for measuring and evaluating the effectiveness of the seat suspension in reducing the vertical whole-body vibration transmitted to the operator of earth-moving machines at frequencies between 1 Hz and 20 Hz. It also specifies acceptance criteria for application to seats on different machines. 1.2 This document is applicable to operator seats used on earth-moving machines as defined in ISO 6165. 1.3 This document defines the input spectral classes required for the following earth-moving machines. Each class defines a group of machines having similar vibration characteristics: — rigid-frame dumpers >4 500 kg operating mass; — articulated-frame dumpers; — scrapers without axle or frame suspension[1]; — wheeled loaders >4 500 kg operating mass; — graders; — wheeled dozers; — soil compactors; — backhoe loaders; — crawler dumpers; — crawler loaders; — crawler-dozers =50 000 kg operating mass[2]; — compact dumpers =4 500 kg operating mass; — wheeled compact loaders =4 500 kg operating mass; — skid-s