Overview
ISO 8026:2009 - "Agricultural irrigation equipment - Sprayers - General requirements and test methods" specifies general requirements, classification and laboratory test methods for irrigation sprayers intended for installation on an irrigation lateral and for operation with irrigation water. The standard covers design, materials, connections, performance characterization and mandatory test procedures (hydraulic, mechanical and durability) to assess spray coverage, flow rate and spray trajectory.
Key Topics
- Scope & classification
- Applicability to sprayers mounted on pipe laterals and operating with irrigation water.
- Classifications by uniformity of coverage, area of coverage (full/part-circle, circular/non-circular), type of spray (sheet or jet), flow regulation (regulated vs non-regulated), connection type (threaded, insert barb, bayonet) and additional functions (pop‑up, valve-in-head).
- Materials and manufacture
- Requirements for UV-resistant plastics and corrosion‑resistant metals (e.g., copper alloys or equivalents).
- Interchangeability of removable parts and provisions for special tools.
- Connections
- Threaded connections to comply with ISO 7‑1 or be supplied with adaptors; manufacturer to specify flexible tube types for on‑line connections.
- Measurement accuracy and test conditions
- Measurement tolerances (e.g., ±3 % general; application depths ±1 %; flow rate ±1 %; pressure ±1 %; test pressure variation ±2 %; water temp for indoor tests 23 ± 3 °C).
- Indoor/drift‑free or outdoor calm‑wind testing (max wind
