1.1 This part of IS0 8984 specifies minimum re- quirements for hand-lever-operated testing and set- ting apparatus to perform certain tests on fuel injectors for diesel (compression-ignition) engines. These tests are detailed in IS0 8984-2 and are
- nozzle opening pressure;
- chatter (atomization);
- spray pattern;
- seat leakage;
- bat k-leakage.
This International Standard concerns fuel injectors having a spring-loaded nozzle valve actuated by fuel pressure. It is intended that the specifications form a standard basis. The injector is connected to the apparatus by an adaptor specified by the injector manufacturer.