Apex Instruments Isokinetic Method 5 Source Sampler Consoles are manufactured to conform with the construction design criteria and specifications cited in US EPA Method 5, Code of Federal Regulations (40CFR Part 60) and APTD-0581 Document. Our source sampler consoles allow operators to monitor gas velocities, temperatures, pressures and sample flow rates in order to maintain isokinetic sampling conditions. For sampling to be isokinetic the sample gas enters the nozzle at a velocity equal to the approaching gas velocity. All Apex Instruments models are interchangeable and compatible with most others currently in use. Our 572 Series Consoles are equipped with Metric instruments and ultra high molecular weight (UHMW) polyethylene case.