EPA Method 525 Internals & Surrogates Back Catalog number: 91161 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11292.18-100-AN Triphenyltin hydroxide,100 µg/mL,acetonitrile,1mL, Price on request 3454.10-100-AN Metoxuron Price on request 66195 2,2’,3,3’,4,4’,5,6-Octachlorobiphenyl (195) Price on request