Acreditado EPA 1682 (Excepto ítem 9 y 14) EPA-821-R-06-14. July 2006. (Validado aplicado fuera del alcanse). 2020. Method 1682: Salmonella in Sewage Sludge (Biosolids) by Modified Semisolid Rappaport-Vassiliadis (MSRV) Medium. Sample Preparation. Modified Semisolid Rappaport-Vassiliadis (MSRV) Medium Procedure