Overview – AATCC 22
AATCC 22 is a common spray rating test that measures a treated fabric’s resistance to wetting by water.
The spray rating test (AATCC 22) was developed in the 1940’s to test the water repellency on fabric.
When To Use a Spray Rating Test?
- Horse blankets
- Camping tents
- Outdoor wear
Note: This spray rating test measures the water-resistance of fabric, not water penetration of fabric.
How Does The Spray Rating Test Work?
Test uses 250 mL of 80 degree water.
The water is sprayed from a shower head at a 45 degree angle.
The specimen is visually inspected based on the spray rating chart below.