Toxicity test for field use for determining the toxicity of any natural water: pond, river, lake or sea! Reagent is optimised for field use, no need for freezer storage during a few weeks trip. Simple and user friendly system. Unlike many other field kits, this test can be used in field conditions. The test sensitivity to reference chemicals (ISO 21338) is comparable to any other method with the same organism. From toxic samples the results are available in minutes but if you need to know that the sample is non toxic, you must waith as in any other test! For instructional video please contact Aboatox. It is possible to measure the result from the control sample and test sample with the same aliquot of reagent. Patent pending product.