TOC/TIC Mixed Standard, 1000ppm each in Water, 500ml

Cr @ 1000 µg/mL in 5% HCl, 100ml

Phosphate (PO4-3) as P, 1000µg/ml in Water, 500ml

Sulfur, 1500µg/g (0.150 wt%) in 75 cSt Mineral Oil, 100ml