Overview
EN ISO 16119-5:2023 - Agricultural and forestry machinery - Environmental requirements for sprayers - Part 5: Aerial spray systems (ISO 16119-5:2023) specifies environmental design and performance requirements and the means for their verification for aerial fixed‑wing and rotary aircraft spray systems used in agriculture, forestry, turf and vegetation control (including transport access ways). The standard focuses on minimizing the potential risk of environmental contamination during normal use and foreseeable misuse. It is intended to be used together with ISO 16119-1:2013 (general sprayer requirements); where this part differs, EN ISO 16119-5 takes precedence for aerial systems. The document does not cover aircraft airworthiness, pilot certification, ISO 4254 safety series, or unmanned aerial vehicles (drones), and it is not retroactive to sprayers made before publication.
Key Topics
Key technical topics and requirements covered include:
- General design and verification: requirements and methods for verifying environmental performance of aerial spray systems.
- Sprayer tanks: materials, tank openings, emptying methods, content indicators, agitation and filling of pre-mix tanks.
- Hoses and lines: selection, routing and integrity to reduce leaks and contamination.
- Spray booms: design, location and adjustment requirements specific to aerial deployment.
- Safety measures and markings: controls, labels and operator information to help prevent misuse and limit environmental impact.
- Filters, nozzles and atomizers: components affecting deposition, drift and droplet formation.
- Measuring systems and test provisions: provisions for connecting test equipment and measuring system performance.
- Volume/area adjustment and distribution: calibration and control systems that influence application rates and uniformity.
- Spray drift control and swathe marking/mapping: requirements to reduce off‑target deposition and support accurate application mapping.
- Cleaning and water tanks: in‑field cleaning provisions and water handling to avoid contamination.
- Operator’s manual: required instructions and information for safe, environmentally compliant use.
Applications and Users
Who uses EN ISO 16119-5:2023 and why:
- Manufacturers of aerial spray systems - for product design, compliance and verification.
- Regulators and market surveillance bodies - to set and assess environmental performance expectations.
- Operators and contractors (aerial applicators) - to understand system features affecting drift control, calibration and cleaning.
- Service providers and maintenance teams - for guidance on components, inspections and repairs that affect environmental safety.
- Health and safety organizations - to evaluate environmental risk reduction measures in aerial application.
Practical benefits include improved drift control, clearer design requirements for tanks/nozzles, consistent verification methods, and better operator guidance - all supporting reduced environmental contamination from aerial spraying.
Related Standards
- ISO 16119-1:2013 (general sprayer requirements) - use in conjunction with Part 5.
- Not intended to replace aircraft airworthiness standards or ISO 4254 series (tractor-mounted sprayers).