Total DMRQA (Kit) - Pre 2006 Back Catalog number: 55074 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 54262 Nitrite as NO2-, 1000µg/ml in water, 100ml Price on request 1749.16-K-IO 3-n-Dodecylthiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 104934-52-3 Price on request 95182 VOC Standard Price on request