Application Note: Measurement Of Vapor Phase Organic And Inorganic Emissions By Extractive FTIR Spectroscopy

Introduction
Persons unfamiliar with basic elements of FTIR spectroscopy should not attempt to use this method.

This method describes sampling and analytical procedures for extractive emission measurements using Fourier transform infrared (FTIR) spectroscopy. Detailed analytical procedures for interpreting infrared spectra are described in the "Protocol for the Use of Extractive Fourier Transform Infrared (FTIR) Spectrometry in Analyses of Gaseous Emissions from Stationary Sources," hereafter referred to as the "Protocol." Definitions not given in this method are given in Appendix A of the Protocol. References to specific sections in the Protocol are made throughout this Method. For additional information refer to references 1, 2, and other EPA reports, which describe the use of FTIR spectrometry in specific field measurement applications and validation tests. The sampling procedure described here is extractive. Flue gas is extracted through a heated gas transport and handling system. For some sources, sample conditioning systems may be applicable. Some examples are given in this method. Note: sample conditioning systems may be used providing the method validation requirements in Sections 9.2 and 13.0 are met.