AATCC TM22 vs ISO 4920: Fabric Spray Test Differences

AATCC TM22 vs ISO 4920: Fabric Spray Test Differences

October 22, 2026

AATCC TM22 and ISO 4920 address resistance to surface wetting through spray assessment. Both can be relevant to water-repellent textiles. A buyer should nevertheless identify the required method rather than accepting a generic “spray test passed” statement. The method designation, edition, rating scale and pretreatment belong with the result. Similar test purposes do not make all reports or contractual requirements interchangeable.

Read more