ISO 19721:2022 PDF

ISO 19721:2022 - Overview

ISO 19721:2022 specifies an accelerated abrasion test method for artificial turfs used in sports facilities by combining simulated solar UV exposure with mechanical stud wear. The method exposes turf specimens to controlled radiation, temperature, humidity (and optional spray/wetting) together with cyclic mechanical abrasion using soccer shoe studs on a rotating/stud‑cylinder assembly. The standard is intended as a screening or qualifying test for abrasion resistance; results may not directly equate to in‑service performance. Note: simultaneous UV + wear exposure was found more effective than sequential exposure.

Key topics and technical requirements

• Principle: Simultaneous or sequential combined exposure to UV radiation and mechanical abrasion using a stud‑cylinder abrasion device and an environmental chamber.
• Apparatus: Radiation source (UVA‑340 fluorescent, xenon arc, or metal‑halide), stud‑cylinder abrasion device (rotating drum), specimen support, temperature/humidity control and optional spray system.
• Radiation sources & setpoints:
  • UVA‑340 fluorescent (ISO 4892‑3): 0.80 W·m‑2·nm‑1 at 340 nm (typical table values).
  • Metal halide (DIN 75220): ~1 000 ± 100 W·m‑2 (300–3 000 nm).
  • Xenon arc (ISO 4892‑2): 60 ± 2 W·m‑2 (300–400 nm); 0.51 ± 0.02 W·m‑2·nm‑1 at 340 nm.
• Mechanical parameters: linear stud travel 0.25 ± 0.05 m/s, transverse movement 20 ± 1 mm (transverse speed ~0.015 ± 0.005 m/s).
• Specimen size & conditioning: minimum specimen 800 × 400 mm (uniform abraded area ≥ 500 × 300 mm). Condition specimens 24 h at 23 ± 2 °C and 50 ± 10 % RH before testing.
• Test conditions: Detailed exposure cycles (irradiance, BPT temperatures, humidity, spray cycles) are specified in separate tables for each lamp type; tolerances and alternative cycles may be agreed and must be reported.
• Measurements & reporting: Record radiant exposure, changes in appearance, and sports functional characteristics; report lamp type, test cycle, specimen details and any deviations. The standard references ISO 4892 (light exposure), EN 15306 (synthetic turf wear) and related documents.

Practical applications and users