Spiking Standard #2 Back Catalog number: 53070 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675751 Dicrotophos, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 52120 EPA Method 353.2 Nitrate & Nitrite Price on request 38320 CWA Waste Water Kit Price on request