Initial Check Verif. Standard 4, in 4%HNO3, 100ml

Chloroparaffin C11 55.20% Cl, 10µg/mL in CY, 1ml

Triethylene glycol mono(p-n-nonylphenyl) ether, 1000µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 51437-95-7

Benzidine