Te, 1000 µg/mL in 5% HNO3, 100ml

Germanium (Ge), 100 µg/mL in 2%-HNO3 / Water, 4x25ml

V21 Wear Metals Standard: 30µg/g in Hydrocarbon Oil, 100g

CONOSTAN S in Diesel Fuel, 25ppm, 100g