ISO 21628:2008 gives safety requirements and the means for their verification specific to the design and construction of powered material‑collecting systems used in agriculture, gardening and areal maintenance (e.g. landscaping). It is applicable to mounted, semi-mounted or trailed machines manufactured after the date of its publication.
It specifies means for eliminating or reducing mechanical hazards when the material-collecting system is used as intended and under the conditions foreseen by the manufacturer.
It does not deal with environmental hazards, road safety, electromagnetic compatibility, power take-off (PTO), PTO drive shaft guarding or control requirements.