IP 391-95 Calibration Level 3

Organotin Standard Mixture 8 - Tin IS Ethyl Derivatives Internal standards ethylderivatives 1000 µg/mL in isooctane (based on total mass)) 5x1mL Ethyltripropyltin 1955.11 Di-n-heptyl diethyltin 2493.18 Tetra-n-propyltin 2490.12

Chlormephos, 10.0 µg/ml, Ethyl acetate, 10ml

Silica (SiO2), 1000µg/ml in Water/0.5% NaOH, 100ml