This part of ISO 19932 specifies the safety and environmental requirements and their verification for the design and construction of knapsack sprayers carried on the back or shoulder of the operator for use with plant protection products. In addition, it specifies the type of information on safe working practices (including residual risks) to be provided by the manufacturer. It is applicable to lever-operated knapsack sprayers, knapsack compression sprayers and knapsack sprayers driven by an engine or electric motor using hydraulic pressure atomisation of spray liquid, with a nominal volume of more than 3 l, for their intended use in, for example, agriculture and horticulture. It does not apply to knapsack mistblowers. This part of ISO 19932 deals with all significant hazards, hazardous situations or hazardous events relevant to knapsack sprayers when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer (see Annex A), excepting the hazards arising from: - static electricity; - explosion or fire from chemicals for spraying; and - insufficient structural integrity. - This document is not applicable to knapsack sprayers which are manufactured before the date of publication of this document.
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