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Air Emission Measurement Center (EMC)

EMC Other Test Methods

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This category includes test methods which have not yet been subject to the Federal rulemaking process. Each of these methods, as well as the available technical documentation supporting them, have been reviewed by the Emission Measurement Center staff and have been found to be potentially useful to the emission measurement community.

The types of technical information reviewed include:

  • field and laboratory validation studies;
  • results of collaborative testing;
  • articles from peer-reviewed journals;
  • peer-review comments; and
  • quality assurance (QA) and quality control (QC) procedures in the method itself.

Technical information for each method is below. The EPA strongly encourages the submission of additional supporting field and laboratory data as well as comments in regard to these methods.

These methods may be considered for use in Federally enforceable State and local programs (e.g., Title V permits, State Implementation Plans (SIP)) provided they are subject to an EPA Regional SIP approval process or permit veto opportunity and public notice with the opportunity for comment. The methods may also be considered to be candidates to be alternative methods to meet Federal requirements under 40 CFR Parts 60, 61, and 63. However, they must be approved as alternatives under 60.8, 61.13, or 63.7(f) before a source may use them for this purpose. Consideration of a method's applicability for a particular purpose should be based on the stated applicability as well as the supporting technical information outlined below. The methods are available for application without EPA oversight for other non-EPA program uses including state permitting programs and scientific and engineering applications.

As many of these methods are submitted by parties outside the Agency, the EPA staff may not necessarily be the technical experts on these methods. Therefore, technical support from EPA for these methods is limited. Also, be aware that these methods are subject to change based on the review of additional validation studies or on public comment as a part of adoption as a Federal test method, the Title V permitting process, or inclusion in a SIP.

The documents below are PDFs, except where indicated. You will need Adobe Reader to view the files on this page. See EPA’s About PDF page to learn more.

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Preliminary Methods

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Preliminary Performance Specification

  • PPS-001

Note: PPS-001 is outdated from a technical standpoint and has been removed from the website. Facilities or testers preparing to install/operate a NH3 CEMS are strongly encouraged to consider use of the principles/procedures of Performance Specification 18 and Appendix F Procedure 8 or Performance Specification 15. Reference methods to be considered are Method 320 and CTM-027.

Other Test Methods

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