PP-530A-1
Simazine
Simazine
Oxychlordane
Oxychlordane
Pesticides standard
Organophosphate insecticides standard
Organochlorine pesticide standard
Organochlorine pesticide standard
Pesticide standard
Pesticide standard
Organochlorine pesticides standard
Laboratory performance check
DM 471 Pesticides standard
Diquat and paraquat standard
Organochlorine pesticides standard
Organochlorine pesticides standard
Lab Performance Check Methyl Derivatives
Laboratory performance check
Laboratory performance check
Organochlorine pesticides standard
Organochlorine pesticides standard
Organochlorine pesticide standard
Organochlorine pesticide standard
IRSA 5090 pesticide
Organochlorine pesticide standard