Source: https://www.federalregister.gov/documents/2007/04/26/E7-7997/office-of-research-and-development-ambient-air-monitoring-reference-and-equivalent-methods
Timestamp: 2018-03-18 22:25:30
Document Index: 176576618

Matched Legal Cases: ['art 53', 'art 53', 'art 53', 'art 2', 'art 58', 'art 1', 'art 58', 'art 53', 'art 58']

Federal Register :: Office of Research and Development; Ambient Air Monitoring Reference and Equivalent Methods: Designation of a New Equivalent Method
A Notice by the Environmental Protection Agency on 04/26/2007
72 FR 20846
FRL-8306-1
E7-7997
https://www.federalregister.gov/d/E7-7997 https://www.federalregister.gov/d/E7-7997
The EPA hereby announces the designation of a new equivalent method for measuring concentrations of O3 in the ambient air. This designation is made under the provisions of 40 CFR part 53, as amended on December 18, 2006 (71 FR 61271).
The new equivalent method is an automated method (analyzer) that utilizes a measurement principle based on absorption of ultraviolet light by ozone at a wavelength of 254 nm. The newly designated equivalent method is identified as follows:
EQOA-0407-165, “Tanabyte Models 722, 723, 724, 725, or 726 Ambient Ozone Analyzer,” enclosed in either a Dual-Bay Chassis or a Single-Bay Chassis and operated on either the 0-0.5 ppm or 0-1.0 ppm measurement range, within an ambient temperature range of 20 to 30 degrees C, and with a sample inlet particulate filter installed in the sample filter holder.
An application for an equivalent method determination for the candidate method based on this ozone analyzer was received by the EPA on January 19, 2007. The sampler is commercially available from the applicant, Tanabyte Engineering, Inc., 1210 West Burbank Boulevard, Suite B, Burbank, CA 91506.
A test analyzer representative of this method has been tested in accordance with the applicable test procedures specified in 40 CFR part 53 (as amended on December 18, 2006). After reviewing the results of those tests and other Start Printed Page 20847information submitted by the applicant in the application, EPA has determined, in accordance with part 53, that this method should be designated as an equivalent method. The information submitted by the applicant in the application will be kept on file, either at EPA's National Exposure Research Laboratory, Research Triangle Park, North Carolina 27711 or in an approved archive storage facility, and will be available for inspection (with advance notice) to the extent consistent with 40 CFR part 2 (EPA's regulations implementing the Freedom of Information Act).
As a designated reference or equivalent method, this method is acceptable for use by states and other air monitoring agencies under the requirements of 40 CFR part 58, Ambient Air Quality Surveillance. For such purposes, the method must be used in strict accordance with the operation or instruction manual associated with the method and subject to any specifications and limitations (e.g., configuration or operational settings) specified in the applicable designation method description (see the identifications of the method above).
Use of the method should also be in general accordance with the guidance and recommendations of applicable sections of the “Quality Assurance Handbook for Air Pollution Measurement Systems, Volume I,” EPA/600/R-94/038a and “Quality Assurance Handbook for Air Pollution Measurement Systems, Volume II, Part 1,” EPA-454/R-98-004 (available at http://www.epa.gov/​ttn/​amtic/​qabook.html). Vendor modifications of a designated reference or equivalent method used for purposes of part 58 are permitted only with prior approval of the EPA, as provided in part 53. Provisions concerning modification of such methods by users are specified under Section 2.8 (Modifications of Methods by Users) of Appendix C to 40 CFR part 58.
[FR Doc. E7-7997 Filed 4-25-07; 8:45 am]