EPA Method 537 Analyte Primary Dilution Standard (linear isomers only), 1.2ml, methanol

2-Perfluorodecyl-[1,2-13C2]-ethanoic acid (10:2), 50µg/ml in Isopropanol, 1,2ml

ISO 9377-2MOD Extraction solvent standard solution Dilute of "extraction solvent stock solution" (S-4415) 10 times with the extracting solvent (n-pentane) Use 50mL of extraction solvent standard solution pr. experiment

2,4-Diaminotoluene, 250mg