Before revision: This NOEC has been severely criticized on statistical grounds by several authors Suter 1996, Laskowski 1995, Kooijman 1996, Van der Hoeven 1997 and it was concluded that the NOEC should be abandoned.OECD Document No 54 of "Series on Testing Assessment", 2006 ECx A proposed alternative is the use of so called ECx –concentrations, or the concentrating showing x % Effect (e.g.
After revision: This NOEC has been severely criticized on statistical grounds by several authors Suter 1996, Laskowski 1995, Kooijman 1996, Van der Hoeven 1997 and it was concluded that the NOEC should be abandoned.OECD Document No 54 of "Series on Testing Assessment", 2006 ECx A proposed alternative is the use of so-called ECx –concentrations, or the concentrating showing x % Effect (e.g.