[Federal Register Volume 62, Number 159 (Monday, August 18, 1997)]
[Notices]
[Pages 44007-44008]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 97-21804]


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ENVIRONMENTAL PROTECTION AGENCY

[FRL-5876-2]


Ambient Air Monitoring Reference and Equivalent Methods DKK 
Corporation; Designation of Equivalent Method

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice of designation.

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SUMMARY: Notice is hereby given that EPA, in accordance with 40 CFR 
part 53, has designated another equivalent method for the measurement 
of ambient concentrations of sulfur dioxide.

FOR FURTHER INFORMATION CONTACT: Berne I. Bennett, Human Exposure and 
Atmospheric Sciences Division (MD-77B), National Exposure Research 
Laboratory, U.S. Environmental Protection Agency, Research Triangle 
Park, North Carolina 27711, (919) 541-2366.

SUPPLEMENTARY INFORMATION: Notice is given that designation of 
equivalency has been granted to DKK Corporation, Kichijoji-Kitamachi-
shi, Tokyo, 180, Japan, for model GFS-32 Ambient Air SO<INF>2</INF> 
Ultraviolet Fluorescent Analyzer. The newly designated method is 
identified as follows:
    EQSA-0701-115, DKK Corporation model GFS-32 Ambient SO<INF>2</INF> 
ultraviolet fluorescent analyzer, operated within the 0.000 to 0.500 
ppm range in the temperature range of 20 deg.C to 30 deg.C.
    A representative analyzer has been tested for the applicant by the 
Zedek Corporation, Durham, NC, in accordance with the test procedures 
specified in 40 CFR part 53. After reviewing the results of those tests 
and other information submitted by the applicant, EPA has determined in 
accordance with part 53, that this method should be designated as an 
equivalent method. The information submitted by the applicant will be 
kept on file at EPA's National Exposure Research 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 a designated equivalent method, this method is acceptable for 
use by States and other air monitoring agencies under requirements of 
40 CFR part 58, Ambient Air Quality Surveillance. For such purposes, 
the method must be used in strict accordance with the operation manual 
associated with the method and subject to any limitations specified in 
the applicable designation (see description of the method above). 
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 
(Modification of Methods by Users). In general, a designation applies 
to any analyzer which is identical to the analyzer described in the 
designation.
    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 user.
    (2) The analyzer must not cause 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 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 
designation has been cancelled, or if adjustment of the analyzer is 
necessary under 40 CFR part 53.11(b) to avoid 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 it may be 
sold without such representation), nor to attach a label or sticker to 
the analyzer (as modified) under the provisions described above, until 
notice has been received under 40 CFR part 53.14(c) that the original 
designation or a new designation applies to the method as modified or 
until notice under 40 CFR 53.8(b) has been received of a new reference 
or equivalent method determination for the analyzer as modified.

[[Page 44008]]

    Aside from occasional breakdowns or malfunctions, persistent or 
repeated noncompliance with any of these conditions should be reported 
to: National Exposure Research Laboratory (Department E, MD-77), U.S. 
Environmental Protection Agency, Research Triangle Park, North Carolina 
27711. Technical questions concerning this method should be directed to 
the manufacturer. Additional information concerning this action may be 
obtained from Berne I. Bennett, Human Exposure and Atmospheric Sciences 
Division (MD-77B), National Exposure Research Laboratory, U.S. 
Environmental Protection Agency, Research Triangle Park, North Carolina 
27711, 919) 541-2366
Henry L. Longest II,
 Acting Assistant Administrator for Research and Development.
[FR Doc. 97-21804 Filed 8-15-97; 8:45 am]
BILLING CODE 6560-50-P