HOW LONG DOES IT TAKE TO COMPLETE A WET TEST?
There are typically two types of WET tests. Acute tests last 48 to 96-h. The objective of an acute test is to determine at what concentration the effluent may produce a harmful effect during a short-term exposure under controlled conditions. Because death is an easily detected harmful response, the measured effect for acute tests is lethality The second type of WET tests are chronic tests. Chronic tests predict the concentrations that interfere with normal growth, development, and reproductive potential of aquatic organisms. During chronic tests, several life stages of the organism are continuously exposed to the test material at various concentrations. Chronic tests required by the WDNR last about 7 days. The response measured for fathead minnows is growth and survival; for C. dubia it is reproduction and survival. The C. dubia test encompasses the entire life cycle of the organism and therefore the most sensitive stages. The fathead minnow test, which uses fish less than 1 day old, s
