Devices shall be designed and manufactured in such a way as to reduce as far as possible the risks posed by substances or particles, including wear debris, degradation products and processing residues, that may be released from the device.
Déanfar na feistí a dhearadh agus a mhonarú sa chaoi go laghdófar a oiread is féidir agus is iomchuí na rioscaí a bhainfeadh le substaintí nó le cáithníní, lena n-áirítear smionagar caithimh, táirgí díghrádaithe agus fuíll próiseála, a d'fhéadfadh sceitheadh ón bhfeiste.