Suitable for both lab and field testing, Hach Test Strips are easy to use and easy to read. Ammonia (Nitrogen) is a product of microbiological decay of plant and animal protein. Its presence in raw surface waters usually indicates domestic or agricultural pollution. Above certain levels, it is toxic to fish.

• Easy to use, disposable, and inexpensive
• A great way to obtain quick, quantitative answers in the field or in the lab
• Contains 25 tests