Equipment for crop protection - Knapsack sprayers - Part 3: Inspection of knapsack sprayers in use (ISO 19932-3:2025)

This document specifies the requirements for the inspection and testing of operating backpack sprayers used in agricultural applications. It outlines the procedures to evaluate the condition, performance, and safety features of sprayers during routine use in the field. The scope covers the assessment of key components such as pumps, nozzles, pressure gauges, and structural integrity to ensure they meet operational safety standards. By adhering to these guidelines, users and inspectors can systematically identify wear, damage, or malfunctioning parts that may affect the efficacy of application or pose risks to operators and the environment. The methodology includes visual examinations, functional checks, and pressure tests designed to verify that the equipment continues to function within acceptable limits after significant usage. This technical specification aligns with international norms and is adopted by national bodies to harmonize safety protocols across the region. It serves as a practical reference for maintenance teams and regulatory authorities tasked with ensuring that agricultural machinery remains safe and effective throughout its service life. The document focuses solely on the technical aspects of the inspection process without addressing broader regulatory frameworks or enforcement policies.