Hexavalent Chromium (Cr 6+)

ISO 9377-2 Extraction solvent standard solution Dilute of "extraction solvent stock solution" (S-4212) 10 times with the extracting solvent (n-pentane) Use 50mL of extraction solvent standard solution pr. experiment

Spiking Standard 5

n-Hydrocarbons (Variable C6-C44)