Purgeable Organic Halogens
Purgeable Organic Halogens (POX) is the sum parameter of Purchable Organic Fluor (F), Chlorine (Cl), Iodine (I) and Bromine (Br). These volatile organic elements can be forced out a water sample while purging at certain temperature. The purged components are directly led into an elemental combustion analyzer and detected according to microcoulometry detection technique.
International methods to measure the amount of POX content in water samples: DIN 38414, EPA 9021, NEN 6401