Ammonia Leak Cloth-Reacted

Ammonia leak cloth works on the principle that the cloth will turn from yellow-orange to blue in the presence of a very small amount of ammonia gas. To test equipment such as glove sleeves a source of liquid ammonia is placed inside the glovebox which is then pressurized. The ammonia leak detector cloth is placed at any suspect seal point such that if ammonia “leaks” through the seal the cloth will turn blue at that point.

Check the Related Products section below for magnifiers that might be useful in finding small holes.

The Ammonia Leak Test Method involves filling a closed and sealed isolator with ammonia vapor. After a defined period of time to allow the concentration of ammonia to reach optimal concentration conditions, the isolator is pressurized. If a hole is present, the ammonia will be forced out of the hole and into the room. An operator uses an ammonia-sensitive cloth that changes color when exposed to ammonia in order to identify if there is a leak.