Hanna Pocket Checker-Ammonia The Ammonia Low Range Checker is a simple, accurate and cost effective way to measure low ranges of ammonia in fresh water. Designed as a more accurate alternative to chemical test kits, provides quick, accurate results in four easy steps. HI-700 uses an adaptation of the ASTM Manual of Water and Environmental Technology, D1426-92, Nessler method. The reaction between ammonia and reagents causes a yellow tint in the sample. Read more Features:
