Most of the companies offer varied types of vehicle emission testers, some common examples of vehicle emission testers are NDIR testers, flame ionization detectors
, smoke meters, cross duct testers, emission and combustion testers with chillers, etc.
ARC's Polyarc[TM] reactor was recognized as the Best New Product for its novel design and universal application to scientists using gas chromatography (GC) with flame ionization detectors
The instruments segment is further segmented down to systems and types of detectors viz., flame ionization detectors
, thermal conductivity detectors, electron capture detector (ECD), photo ionization detector (PID), nitrogen phosphorous detector (NPD), flame photometric detector, and mass detectors.
Headspace [H.sub.2] and methane (C[H.sub.4]) concentrations were determined using gas chromatography and reduction gas and flame ionization detectors
, respectively, according to the methods described by Becket et al.