EPA Method 525 Internals & Surrogates Back Catalog number: 95227 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 32261 1,3-Dichloropropane Price on request MPFAC-24ES Mass-Labelled PFAS Extraction Standard, 1000ng/ml in MeOH, 1,2ml Price on request 10632.12-50-NN 2,3,4,7,8-Pentabromodibenzofuran,50 µg/mL,n-nonane,1mL, Price on request