Code of Federal Regulations Title 40. Protection of Environment § 40.63.885 Test methods and procedures

(1) Method 1 at 40 CFR part 60, appendix A–1 for the selection of the sampling port location and number of sampling ports;

(2) Method 2 at 40 CFR part 60, appendix A–1 for volumetric flow rate;

(3) Method 3 or 3A (40 CFR part 60, appendix A–2) for oxygen and carbon dioxide for diluent measurements needed to correct the concentration measurements to a standard basis;

(4) Method 4 at 40 CFR part 60, appendix A–4 for moisture content of the stack gas;

(5) Method 29 (40 CFR part 60, appendix A–8) for the concentration of chromium compounds. Each run must consist of a minimum sample volume of two dry standard cubic meters.

(6) An alternative method, subject to approval by the Administrator.