Apex Instruments Isokinetic Source Sampling Systems are rugged, versatile equipment designed for extracting a representative sample of flue gas. The sample is used to determine particulate & toxic emissions in accordance with U.S. EPA Reference Methods as published in CFR 40 Part 60 Appendix A. Choose between automated or manual systems. Apex Instruments method sampling kits are designed to take the guesswork out of assembling all the components you need to perform method-specific sampling. Method specific kits do not include your meter console or pump which must be chosen separately. Your method-specific kit can then be added to these components to create an entire sampling system for any method. Please keep in mind that some of our method kits only consist of components to be combined with other kits.