scope:

This part of ISO 11680 specifies safety requirements and their verification for the design and construction of portable hand-held pole-mounted powered pruners with a back-pack power unit and using a drive shaft, to transmit power to the cutting attachment. The cutting attachments covered are saw chains, reciprocating and circular saw blades. This Standard describes methods for the elimination or reduction of hazards arising from their use. In addition it specifies the type of information on safe working practices to be provided by the manufacturer. This document deals with the exception listed below, with all significant hazards hazardous situations or hazardous events relevant to these machines, when they are used as intended and under condition of reasonably foreseeable misuse. Significant hazards not dealt with are: . electric shock hazard from contact with overhead electric lines, apart from warnings and advice for instruction handbook contents; . whole-body vibration hazard from the back-pack power unit. NOTE A method to measure whole body vibration from the backpack power unit is presently not available. See Annex A for list of significant hazards. This part of ISO 11680 applies primarily to portable hand-held pole-mounted powered pruners which are manufactured after the date of issue of the standard.