This document specifies particular test methods for the verification of requirements of ISO19932-1:2025 for knapsack sprayers carried on the back or shoulder of the operator for use with plant protection products.

It is applicable to lever-operated knapsack sprayers, knapsack compression sprayers and knapsack sprayers driven by an engine or electric motor using hydraulic pressure atomization of the spray liquid intended to be used primarily in agriculture, forestry and horticulture with a nominal volume of more than 6,0l.

It does not apply to knapsack combustion engine-driven air-blast sprayers covered by ISO28139:2019+2019A1:2024.

This document is intended to be applied in conjunction with ISO 19932-1:2025.

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