Overview
ISO 28139:2019/Amd 1:2024 is the latest amendment to the international standard focusing on knapsack combustion engine-driven airblast sprayers used for crop protection. This standard, developed by the International Organization for Standardization (ISO) in collaboration with the European Committee for Standardization (CEN), establishes safety and environmental requirements as well as test methods to ensure these agricultural sprayers operate reliably and safely. It aligns with ISO’s commitment to providing comprehensive guidelines for agricultural machinery under ISO/TC 23, Subcommittee SC 6.
The amendment updates and refines several key aspects of the original ISO 28139:2019 document, focusing on enhancing safety measures, environmental protection, ergonomic design, and compliance verification. It integrates references to complementary standards, thus ensuring harmonized assessments and improving the overall quality and usability of knapsack sprayers.
Key Topics
- Safety requirements and test methods: The amendment specifies updated normative references and mandates compliance with established safety protocols, including risk assessments aligned with ISO 12100:2010.
- Design and functional requirements: These include specifications that the sprayer must be carried comfortably by the operator, have spill prevention features during filling and emptying, and include measures to avoid operator exposure to hazardous substances.
- Measurement of operational parameters: Vibration and noise emissions must be tested following ISO 22867:2021 and ISO 22868:2021 to reduce operator fatigue and hearing risks.
- Electromagnetic compatibility: Ensures sprayers meet immunity standards per ISO 14982:1998 to mitigate interference from electrical disturbances.
- Marking and identification: Controls and safety signs must follow ISO 3767-5:2016, ISO 11684:2023, and ISO 3864-1:2011 for consistent and clear operator guidance.
- Spillage prevention and filling efficiency: The standard regulates tank design, filling openings, and mechanical lids to minimize environmental contamination and improve ease of use.
- Functional testing and compliance verification: Requirements include tests for tank volume accuracy, gasket integrity, drainage control, and prevention of accidental emptying device activation.
Applications
ISO 28139:2019/Amd 1:2024 is essential for manufacturers, testing laboratories, and regulatory authorities involved in the production, certification, and use of knapsack airblast sprayers powered by combustion engines. The standard supports:
- Manufacturers in designing sprayers that meet stringent safety and environmental requirements, improving operator protection and equipment reliability.
- Agricultural professionals and operators by ensuring the equipment is ergonomic, easy to handle, and minimizes exposure to chemicals and physical hazards.
- Regulators and compliance bodies who assess adherence to international safety and environmental protocols for agricultural machinery.
- Test laboratories in applying consistent test methods to evaluate noise levels, vibration exposure, electromagnetic compatibility, and tank filling characteristics.
- Environmental agencies by promoting standards that limit chemical spillage and reduce environmental contamination from crop protection activities.
Related Standards
To ensure comprehensive safety and operational effectiveness, ISO 28139:2019/Amd 1:2024 incorporates and refers to a range of related international standards:
- ISO 12100:2010 – Safety of machinery – General principles for design including risk assessment and reduction.
- ISO 19932-1:2013 & ISO 19932-2:2013 – Safety and environmental requirements and test methods for knapsack sprayers in general.
- ISO 22867:2021 and ISO 22868:2021 – Vibration and noise test codes for portable hand-held machinery with internal combustion engines.
- ISO 13857:2019 – Safety distances for machinery to prevent hazard zone access.
- ISO 3767-5:2016 – Symbols for operator controls and displays.
- ISO 3864-1:2011 & ISO 11684:2023 – Design principles for safety signs and hazard pictorials.
- ISO 14982:1998 – Electromagnetic compatibility test methods for agricultural and forestry machinery.
- ISO 9357:1990 – Specifications for agricultural sprayer tank openings and filling hole diameters.
- ISO 19732:2007 – Colour coding for identification of sprayer filters.
By adhering to ISO 28139:2019/Amd 1:2024, stakeholders in crop protection equipment can enhance machinery safety, minimize environmental risks, and improve operational performance, fully supporting sustainable agricultural practices worldwide.
Open preview (PDF)Equipment for crop protection — Knapsack combustion engine-driven airblast sprayers — Safety and environmental requirements and test methods — Amendment 1
