Cr @ 1000 µg/mL in 5% HCl, 100ml

Phosphorus, 1000ug/ml, 100ml

S @ 10000 µg/g (1.00 wt%) in #2 Diesel Fuel, 100ml

Method 200.8/1638/1640 Internal Standard, 10µg/ml in 2%-HNO3, 4x25ml