This part of ISO 17101 gives specifications and acceptance criteria for the thrown-object testing of flail mowers used in agriculture. Examples of machines are shown in Annex A. It is not applicable to the following: — large rotary mowers; — rotary mowers; — mowers with an articulated arm; — mowers with one or more vertical axis designed for mulching; — pedestrian controlled motor mowers; — lawn mowers or machines designed as lawn mowers; — inter-row mowing units; — machines designed for highway and road maintenance only; — flail mowers that have the rear part which can be opened for particular field use operations (e.g. row-crop mowers). NOTE 1 If a machine is also designed for use outside agriculture, in addition to the thrown-object test given in this part of ISO 17101, other thrown object tests might apply. NOTE 2 Thrown-object tests and acceptance criteria for rotary mowers are dealt with in ISO 17101-1.