Detector Performance Standard Back Catalog number: 91435 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3394.25-100-CY Esfenvalerate Price on request 673490 Bromopropylate, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 50202 Nitrite as NO2- Price on request