This part of ISO 17101 gives specifications and acceptance criteria for thrown-object testing of rotary mowers used in agriculture. Examples of machines are shown in Annex A. It is not applicable to the following: — flail 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. 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 flail mowers are dealt with in ISO 17101-2. NOTE 3 Thrown-object tests and acceptance criteria for rotary mowers which have a tip circle greater than 1 000 mm are dealt with in ISO 4254-13.