[Federal Register Volume 60, Number 84 (Tuesday, May 2, 1995)]
[Notices]
[Pages 21518-21520]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 95-10752]
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ENVIRONMENTAL PROTECTION AGENCY
[FRL-5201-1]
Office of Research and Development; Ambient Air Monitoring
Reference and Equivalent Methods; Equivalent Method Designations
Notice is hereby given that EPA, in accordance with 40 CFR part 53,
has designated 3 additional equivalent methods, for the measurement of
ambient concentrations of sulfur dioxide, nitrogen dioxide, and ozone.
The new equivalent methods are automated methods (analyzers) that
utilize a measurement principle based on differential optical
absorption spectroscopy (DOAS) and measure pollutant concentrations in
the ambient air over a long, open path up to 1 kilometer in length. The
new designated methods are identified as follows:
EQSA-0495-101, Opsis Model AR 500 System, open path (long path)
ambient air monitoring system configured for measuring SO2, with
one detector and movable grating, operated with a measurement range of
0 to 0.5 ppm, an installed monitoring path length between 20 and 500
meters (or 20 and 1000 meters with the ER 150 option), xenon lamp type
B (150 watt), fiber optic cable length between 3 to 20 meters;
operating within an ambient air temperature range of -50 to +50 deg.C,
an analyzer temperature range of 20 to 30 deg.C, a measurement
(integrating) time setting between 30 and 120 seconds (0 min:30 sec. to
2 min:00 sec.), and with a complete cycle time of not more than 200
seconds (3 min, 20 sec.). Under this method designation, the Model AR
500 System consists of:
AR 500 opto-analyser,
Emitter EM 110 and receiver RE 110 (together identified as ER 110),
Optic fibre cable OF 60-S,
Power supply PS 150,
OPSIS operational software, version 7.0,
Initial on-site installation, setup, and limited operator training.
Optional components that can be used in addition to or as
alternative to corresponding components listed above are:
AR 503 opto-analyzer configured as Model AR 500 (only the center
detector active, sequential monitoring),
Emitter/receiver ER 150 (for monitoring path lengths up to 1
kilometer),
Xenon lamp type A (higher short-wavelength UV output),
Optic fibre cable OF 60-R (low-loss for short wavelengths),
Multiplexers MX 004 and MX 024,
Dataloggers DL 010 and DL 016,
Analogue and digital input/output cards AO 008, AI 016, and DI 032,
Analogue and digital isolation cards IA 008, ID 008, AO 008, and OD
008,
Window heaters HF 110 and HF 150,
Mirror heaters HM 110 and HM 150,
Auto calibration unit CU 007,
Software packages IO 80 version 1.4 (for the analogue and digital
input/output adapters), DL10 and DL16 (for data loggers), ComVision,
and STAT 500;
and recommended calibration and accuracy audit components (or
equivalent):
Wavelength calibration lamp CA 004,
Calibration bench CB 100,
Receiver unit RE 060 (two required),
Calibration unit CA 150, with same type lamp as used in the monitoring
path emitter, [[Page 21519]]
Power supply PS 150 for calibration unit CA 150,
Calibration cells CC 001-X, where X represents various cell lengths
from 1 to 900 mm,
Special calibration cells CC 110 or CC 150 (for mounting directly on
receiver),
Light meter LM 010.
EQNA-0495-102, Opsis Model AR 500 System, open path (long path)
ambient air monitoring system configured for measuring NO2, with
one detector and movable grating, operated with a measurement range of
0 to 0.5 ppm, an installed monitoring path length between 50 and 500
meters (or 50 and 1000 meters with the ER 150 option), xenon lamp type
B (150 watt), fiber optic cable length between 3 to 20 meters;
operating within an ambient air temperature range of -50 to +50 deg.C,
an analyzer temperature range of 20 to 30 deg.C, a measurement
(integrating) time setting between 30 and 120 seconds (0 min:30 sec. to
2 min:00 sec.), and with a complete cycle time of not more than 200
seconds (3 min, 20 sec.). Under this method designation, the Model AR
500 System consists of:
AR 500 opto-analyser,
Emitter EM 110 and receiver RE 110 (together identified as ER 110),
Optic fibre cable OF 60-S,
Power supply PS 150,
OPSIS operational software, version 7.0,
Initial on-site installation, setup, and limited operator training.
Optional components that can be used in addition to or as
alternative to corresponding components listed above are:
AR 503 opto-analyzer configured as Model AR 500 (only the center
detector active, sequential monitoring),
Emitter/receiver ER 150 (for monitoring path lengths up to 1
kilometer),
Xenon lamp type A (higher short-wavelength UV output),
Optic fibre cable OF 60-R (low-loss for short wavelengths),
Multiplexers MX 004 and MX 024,
Dataloggers DL 010 and DL 016,
Analogue and digital input/output cards AO 008, AI 016, and DI 032,
Analogue and digital isolation cards IA 008, ID 008, AO 008, and OD
008,
Window heaters HF 110 and HF 150,
Mirror heaters HM 110 and HM 150,
Auto calibration unit CU 007,
Software packages IO 80 version 1.4 (for the analogue and digital
input/output adapters), DL10 and DL16 (for data loggers), ComVision,
and STAT 500;
and recommended calibration and accuracy audit components (or
equivalent);
Wavelength calibration lamp CA 004,
Calibration bench CB 100,
Receiver unit RE 060 (two required),
Calibration unit CA 150, with same type lamp as used in the monitoring
path emitter,
Power supply PS 150 for calibration unit CA 150,
Calibration cells CC 001-X, where X represents various cell lengths
from 1 to 900 mm,
Filter GG 400,
Special calibration cells CC 110 or CC 150 (for mounting directly on
receiver),
Light meter LM 010.
EQOA-0495-103, Opsis Model AR 500 System, open path (long path)
ambient air monitoring system configured for measuring O3, with
one detector and moveable grating, operated with a measurement range of
0 to 0.5 ppm, an installed monitoring path length between 20 and 500
meters (or 20 and 1000 meters with the ER 150 option), xenon lamp type
B (150 watt), fiber optic cable length between 3 to 20 meters;
operating within an ambient air temperature range of -50 to +50 deg. C,
an analyzer temperature range of 20 to 30 deg. C, a measurement
(integrating) time setting between 30 and 120 seconds (0 min:30 sec. to
2 min:00 sec.), and with a complete cycle time of not more than 200
seconds (3 min, 20 sec.). Under this method designation, the Model AR
500 System consists of:
AR 500 opto-analyser,
Emitter EM 110 and receiver RE 110 (together identified as ER 110),
Optic fibre cable OF 60-S,
Power supply PS 150,
OPSIS operational software, version 7.0,
Initial on-site installation, setup, and limited operator training.
Optional components that can be used in addition to or as
alternative to corresponding components listed above are:
AR 503 optoanalyzer configured as Model AR 500 (only the center
detector active, sequential monitoring),
Emitter/receiver ER 150 (for monitoring path lengths up to 1
kilometer),
Optic fibre cable OF 60-R (low-loss for short wavelengths),
Multiplexers MX 004 and MX 024,
Dataloggers DL 010 and DL 016,
Analogue and digital input/output adapters AO 008, AI 016, and DI 032,
Analogue and digital isolation cards IA 008, ID 008, OA 008, and OD
008,
Window heaters HF 110 and HF 150,
Mirror heaters HM 110 and HM 150,
Auto calibration unit CU 007,
Software packages IO 80 version 1.4 (for the analogue and digital
input/output adapters), DL10 and DL16 (for data loggers), ComVision,
and STAT 500;
and recommended calibration and accuracy audit components (or
equivalent):
Wavelength calibration lamp CA 004,
Calibration bench CB 100,
Receiver unit RE 060 (two required),
Calibration unit CA 150, with same type lamp as used in the monitoring
path emitter,
Power supply PS 150 for calibration unit CA 150,
Calibration cells CC 001-X, where X represents various cell lengths
from 1 to 900 mm,
Special calibration cells CC 110 or CC 150 (for mounting directly on
the receiver),
Ozone generator OC 500,
Light meter LM 010.
These methods are manufactured by Opsis AB, Furulund, Sweden and
are available from ABB Power Plant Controls, Division of Combustion
Engineering, Inc., 2 Waterside Crossing, Windsor, CT 06095. Notices of
receipt of applications for these methods appeared in the Federal
Register, Volume 56, October 29, 1991, page 55673; Volume 56, November
20, 1991, page 58574; and Volume 57, January 29, 1992, page 3429.
A test analyzer representative of these methods has been tested by
the applicant, in accordance with the test procedures specified in 40
CFR part 53. After reviewing the results of these tests and other
information submitted by the applicant, EPA has determined, in
accordance with part 53, that these methods should be designated as
equivalent methods. The information submitted by the applicant will be
kept on file at EPA's Atmospheric Research and Exposure Assessment
Laboratory, Research Triangle Park, North Carolina 27711, and will be
available for inspection to the extent consistent with 40 CFR part 2
(EPA's regulations implementing the Freedom of Information Act).
As designated equivalent methods, these methods are 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,
each method must be used in strict accordance with the operation or
instruction manual associated with the method and subject to any
limitations (e.g., operating range) specified in the applicable
designation (see descriptions of the methods above). Users should note
that these methods are the first methods designated that use a long
path (open path) measurement principle. Amendments to the ambient air
monitoring regulations at 40 CFR [[Page 21520]] part 58 were proposed
on August 18, 1994 (59 FR 42541) to address the application, siting,
and operational quality assurance of open path analyzers, and
supplemental quality assurance guidance is in preparation. Until these
regulatory amendments are promulgated and the supplemental guidance for
open path analyzers is available, monitoring agencies interested in
using these methods should contact the U.S. EPA for interim guidance
pertaining to network design, siting, and quality assurance issues. The
EPA contact person for information on these issues is Ms. Lee Ann B.
Byrd, Monitoring and Quality Assurance Group, Office of Air Quality
Planning and Standards, telephone number (919) 541-5367.
Vendor modifications of a designated method used for purposes of
part 58 are permitted only with prior approval of EPA, as provided in
part 53. Provisions concerning modification of such methods by users
are specified under section 2.8 of appendix C to 40 CFR part 58
(Modifications of Methods by Users).
In general, one of these designations will apply to any analyzer
which is identical to the analyzer described in the designation. In
some cases, similar analyzers manufactured prior to the designation may
be upgraded (e.g., by minor modification or by substitution of a new
operation or instruction manual) so as to be identical to the
designated method and thus achieve designation status at a modest cost.
The manufacturer should be consulted to determine the feasibility of
such upgrading.
Part 53 requires that sellers of designated methods comply with
certain conditions. These conditions are given in 40 CFR 53.9 and are
summarized below:
(1) A copy of the approved operation or instruction manual must
accompany the analyzer when it is delivered to the ultimate purchaser.
(2) The analyzer must not generate any unreasonable hazard to
operators or to the environment.
(3) The analyzer must function within the limits of the performance
specifications given in table B-1 of part 53 for at least one year
after delivery when maintained and operated in accordance with the
operation manual.
(4) Any analyzer offered for sale as a reference or equivalent
method must bear a label or sticker indicating that it has been
designated as a reference or equivalent method in accordance with part
53.
(5) If such an analyzer has two or more selectable ranges, the
label or sticker must be placed in close proximity to the range
selector and indicate which range or ranges have been included in the
reference or equivalent method designation.
(6) An applicant who offers analyzers for sale as reference or
equivalent methods is required to maintain a list of ultimate
purchasers of such analyzers and to notify them within 30 days if a
reference or equivalent method designation applicable to the analyzers
has been canceled or if adjustment of the analyzers is necessary under
40 CFR 53.11(b) to avoid a cancellation.
(7) An applicant who modifies an analyzer previously designated as
a reference or equivalent method is not permitted to sell the analyzer
(as modified) as a reference or equivalent method (although he may
choose to sell it without such representation), nor to attach a label
or sticker to the analyzer (as modified) under the provisions described
above, until he has received notice under 40 CFR 53.14(c) that the
original designation or a new designation applies to the method as
modified or until he has applied for and received notice under 40 CFR
53.8(b) of a new reference or equivalent method determination for the
analyzer as modified.
Aside from occasional breakdowns or malfunctions, consistent or
repeated noncompliance with any of these conditions should be reported
to: Director, Atmospheric Research and Exposure Assessment Laboratory,
Department E (MD-77), U.S. Environmental Protection Agency, Research
Triangle Park, North Carolina 27711.
Designation of these equivalent methods is intended to provide
assistance to the States in establishing and operating their air
quality surveillance systems under part 58. Technical questions
concerning the method should be directed to the distributor. Additional
information concerning this action may be obtained from Frank F.
McElroy, Methods Research and Development Division (MD-77), Atmospheric
Research and Exposure Assessment Laboratory, U.S. Environmental
Protection Agency, Research Triangle Park, North Carolina 27711, (919)
541-2622.
Henry L. Longest II,
Acting Assistant Administrator for Research and Development.
[FR Doc. 95-10752 Filed 5-1-95; 8:45 am]
BILLING CODE 6560-50-M
