EPA Method 601 Internal Standard Back Catalog number: 19094 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended EPA-1613PAR Precision and Recovery Stock Solution, 1.2ml, nonane Price on request 54242 Alkalinity as Calcium Carbonate Price on request S-4274-100-T PAH Solution 25 Natives in Toluene Naphthalene 0711,10 90-20-3 99.9 % 0.1 mg/ml 1-Methylnaphthalene 0712,11 90-12-0 99.9 % 0.1mg/ml Biphenyl 0341,12 92-52-4 99.0 % 0.1mg/ml 2,6-Dime Price on request