beta-Endosulfan, 100 µg/ml, Ethyl acetate, 5ml

C20Triaromatic sterane/C26Triaromatic sterane C20 Triaromatic sterane (0857,20)/ C26 Triaromatic sterane (0854,26) = 1:3 (0,33) 50 + 150 µg/mL in isooctane, 1mL pr. vial

1,3-Butadiene

3-Methylphenol, 100 µg/ml, Methanol, 5ml