Water repellency is an important property of textile fabrics to measure the efficiency of water resistant/repellent finishing applied on textiles. The YG813 Spray Rating Tester is the appropriate equipment to test this property by spraying a specified volume of distilled water on a test specimen mounted on a ring and placed at a 45° angle, with the center of the specimen 150mm below the spray nozzle. The spray rating is determined by comparing the appearance of the specimen with the AATCC Spray Test Rating Chart.
To determine the water repellency or surface wetting resistance of fabrics. Appearance of the specimen is compared against photographic chart.
ISO 4920, AATCC 22, BS 3702, IS 390, NEXT 23, WSP 080.1.R4 (12), BS EN 24920, M&S P23
| Parameter | Specification |
|---|---|
| Size of test specimen | 180 x 180 mm square |
| Spray nozzle | Converse face with 19 holes (Center-1, First circle-6, Second circle-12) |
| Rate of water spray | 250 ml in 25 to 30 seconds |
| Position of test specimen | Mounted on a ring and placed at an angle of 45° |
| Distance between center of spray nozzle and center of specimen | 150 mm (±2 mm) |
| Holder Diameter | 150 mm (±5 mm) |
| Plastic funnel diameter | 150 mm (±5 mm) |
| Height of the funnel with nozzle | 200 mm (±10 mm) |
| Dimensions | 200 x 250 x 480 mm |
| Weight | 5 Kg |