[Code of Federal Regulations]
[Title 40, Volume 5]
[Revised as of July 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR53.1]
[Page 6-7]
TITLE 40--PROTECTION OF ENVIRONMENT
CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
PART 53--AMBIENT AIR MONITORING REFERENCE AND EQUIVALENT METHODS--Table of Contents
Subpart A--General Provisions
Sec. 53.1 Definitions.
Source: 62 FR 38784, July 18, 1997, unless otherwise noted.
Terms used but not defined in this part shall have the meaning given
them by the Act.
Act means the Clean Air Act (42 U.S.C. 1857-1857l), as amended.
Administrator means the Administrator of the Environmental
Protection Agency or the Administrator's authorized representative.
Agency means the Environmental Protection Agency.
Applicant means a person or entity who submits an application for a
reference or equivalent method determination under Sec. 53.4, or a
person or entity who assumes the rights and obligations of an applicant
under Sec. 53.7. Applicant may include a manufacturer, distributor,
supplier, or vendor.
Automated method or analyzer means a method for measuring
concentrations of an ambient air pollutant in which sample collection
(if necessary), analysis, and measurement are performed automatically by
an instrument.
Candidate method means a method for measuring the concentration of
an air pollutant in the ambient air for which an application for a
reference method determination or an equivalent method determination is
submitted in accordance with Sec. 53.4, or a method tested at the
initiative of the Administrator in accordance with Sec. 53.7.
Class I equivalent method means an equivalent method for
PM2.5 which is based on a sampler that is very similar to the
sampler specified for reference methods in appendix L of this part, with
only minor deviations or modifications, as determined by EPA.
Class II equivalent method means an equivalent method for
PM2.5 that utilizes a PM2.5 sampler in which an
integrated PM2.5 sample is obtained from the atmosphere by
filtration and is subjected to a subsequent filter conditioning process
followed by a gravimetric mass determination, but which is not a Class I
equivalent method because of substantial deviations from the design
specifications of the sampler specified for reference methods in
appendix L of part 50 of this chapter, as determined by EPA.
Class III equivalent method means an equivalent method for
PM2.5 that has been determined by EPA not to be a Class I or
Class II equivalent method. This fourth type of PM2.5 method
includes alternative equivalent method samplers and continuous
analyzers, based on designs and measurement principles different from
those specified for reference methods (e.g., a means for estimating
aerosol mass concentration other than by conventional integrated
filtration followed by equilibration and gravimetric analysis. These
samplers (or monitors) are those deemed to be substantially different
from reference method samplers and
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are likely to use components and methods other than those specified for
reference method samplers.
Collocated describes two or more air samplers, analyzers, or other
instruments which sampler the ambient air that are operated
silmultaneously while located side by side, separated by a distance that
is large enough to preclude the air sampled by any of the devices from
being affected by any of the other devices, but small enough so that all
devices obtain identical or uniform ambient air samples that are equally
representative of the general area in which the group of devices is
located.
Equivalent method means a method for measuring the concentration of
an air pollutant in the ambient air that has been designated as an
equivalent method in accordance with this part; it does not include a
method for which an equivalent method designation has been canceled in
accordance with Sec. 53.11 or Sec. 53.16.
ISO 9001-registered facility means a manufacturing facility that is
either:
(1) An International Organization for Standardization (ISO) 9001-
registered manufacturing facility, registered to the ISO 9001 standard
(by the Registrar Accreditation Board (RAB) of the American Society for
Quality Control (ASQC) in the United States), with registration
maintained continuously.
(2) A facility that can be demonstrated, on the basis of information
submitted to the EPA, to be operated according to an EPA-approved and
periodically audited quality system which meets, to the extent
appropriate, the same general requirements as an ISO 9001-registered
facility for the design and manufacture of designated reference and
equivalent method samplers and monitors.
ISO-certified auditor means an auditor who is either certified by
the Registrar Accreditation Board (in the United States) as being
qualified to audit quality systems using the requirements of recognized
standards such as ISO 9001, or who, based on information submitted to
the EPA, meets the same general requirements as provided for ISO-
certified auditors.
Manual method means a method for measuring concentrations of an
ambient air pollutant in which sample collection, analysis, or
measurement, or some combination therof, is performed manually. A method
for PM10 or PM2.5 which utilizes a sampler that
requires manual preparation, loading, and weighing of filter samples is
considered a manual method even though the sampler may be capable of
automatically collecting a series of sequential samples.
PM2.5 sampler means a device, associated with a manual
method for measuring PM2.5, designed to collect
PM2.5 from an ambient air sample, but lacking the ability to
automatically analyze or measure the collected sample to determine the
mass concentrations of PM2.5 in the sampled air.
PM10 sampler means a device, associated with a manual
method for measuring PM10, designed to collect
PM10 from an ambient air sample, but lacking the ability to
automatically analyze or measure the collected sample to determine the
mass concentrations of PM10 in the sampled air.
Reference method means a method of sampling and analyzing the
ambient air for an air pollutant that is specified as a reference method
in an appendix to part 50 of this chapter, or a method that has been
designated as a reference method in accordance with this part; it does
not include a method for which a reference method designation has been
canceled in accordance with Sec. 53.11 or Sec. 53.16.
Sequential samples for PM samplers means two or more PM samples for
sequential (but not necessarily contiguous) time periods that are
collected automatically by the same sampler without the need for
intervening operator service.
Test analyzer means an analyzer subjected to testing as part of a
candidate method in accordance with subparts B, C, D, E, or F of this
part, as applicable. Test sampler means a PM10 sampler or a
PM2.5 sampler subjected to testing as part of a candidate
method in accordance with subparts C, D, E, or F of this part.
Ultimate purchaser means the first person or entity who purchases a
reference method or an equivalent method for purposes other than resale.
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