(a) Overview. This test is intended to verify adequate aerosol transport through any modified or air flow splitting components that may be used in a Class I candidate equivalent method sampler such as may be necessary to achieve sequential sampling capability. This test is applicable to all Class I candidate samplers in which the aerosol flow path (the flow path through which sample air passes upstream of sample collection filter) differs significantly from that specified for reference method samplers as specified in 40 CFR part 50, appendix L or appendix O, as applicable. The test requirements and performance specifications for this test are summarized in table E-1 of this subpart.
(b) Technical definitions. (1) Aerosol transport is the percentage of a laboratory challenge aerosol which penetrates to the active sample filter of the candidate equivalent method sampler.
(1) Aerosol transport is the percentage of a laboratory challenge aerosol which penetrates to the active sample filter of the candidate equivalent method sampler.
(2) The active sample filter is the exclusive filter through which sample air is flowing during performance of this test.
(3) A no-flow filter is a sample filter through which no sample air is intended to flow during performance of this test.
(4) A channel is any of two or more flow paths that the aerosol may take, only one of which may be active at a time.
(5) An added component is any physical part of the sampler which is different in some way from that specified for a reference method sampler in 40 CFR part 50, appendix L or appendix O, as applicable, such as a device or means to allow or cause the aerosol to be routed to one of several channels.
(c) Required facilities and test equipment. (1) Aerosol generation system, as specified in Sec. 53.62(c)(2).
(1) Aerosol generation system, as specified in Sec. 53.62(c)(2).
(2) Aerosol delivery system, as specified in Sec. 53.64(c)(2).
(3) Particle size verification equipment, as specified in Sec. 53.62(c)(3).
(4) Fluorometer, as specified in Sec. 53.62(c)(7).
(5) Candidate test sampler, with the inlet and impactor or impactors removed, and with all internal surfaces of added components electroless nickel coated as specified in Sec. 53.64(d)(2).
(6) Filters that are appropriate for use with fluorometric methods (e.g., glass fiber).
(d) Calibration of test measurement instruments. Submit documentation showing evidence of appropriately recent calibration, certification of calibration accuracy, and NIST-traceability (if required) of all measurement instruments used in the tests. The accuracy of flow rate meters shall be verified at the highest and lowest pressures and temperatures used in the tests and shall be checked at zero and at least one flow rate within [3 percent of 16.7 L/min within 7 days prior to use for this test. Where an instrument's measurements are to be recorded with an analog recording device, the accuracy of the entire instrument-recorder system shall be calibrated or verified.
(e) Test setup. (1) The candidate test sampler shall have its inlet and impactor or impactors removed. The lower end of the down tube shall be reconnected to the filter holder, using an extension of the downtube, if necessary. If the candidate sampler has a separate impactor for each channel, then for this test, the filter holder assemblies must be connected to the physical location on the sampler where the impactors would normally connect.
(1) The candidate test sampler shall have its inlet and impactor or impactors removed. The lower end of the down tube shall be reconnected to the filter holder, using an extension of the downtube, if necessary. If the candidate sampler has a separate impactor for each channel, then for this test, the filter holder assemblies must be connected to the physical location on the sampler where the impactors would normally connect.
(2) The test particle delivery system shall be connected to the sampler downtube so that the test aerosol is introduced at the top of the downtube.
(f) Test procedure. (1) All surfaces of the added or modified component or components which come in contact with the aerosol flow shall be thoroughly washed with 0.01 N NaOH and then dried.
(1) All surfaces of the added or modified component or components which come in contact with the aerosol flow shall be thoroughly washed with 0.01 N NaOH and then dried.
(2) Generate aerosol. (i) Generate aerosol composed of oleic acid with a uranine fluorometric tag of 3 [0.25 m aerodynamic diameter using a vibrating orifice aerosol generator according to conventions specified in Sec. 53.61(g).
(i) Generate aerosol composed of oleic acid with a uranine fluorometric tag of 3 [0.25 m aerodynamic diameter using a vibrating orifice aerosol generator according to conventions specified in Sec. 53.61(g).
(ii) Check for the presence of satellites and adjust the generator to minimize their production.
(iii) Calculate the aerodynamic particle size using the operating parameters of the vibrating orifice aerosol generator. The calculated aerodynamic diameter must be 3 [0.25 m aerodynamic diameter.
(3) Verify the particle size according to procedures specified in Sec. 53.62(d)(4)(i).
(4) Collect particles on filters for a time period such that the relative error of the resulting measured fluorometric concentration for the active filter is less than 5 percent.
(5) Determine the quantity of material collected on the active filter using a calibrated fluorometer. Record the mass of fluorometric material for the active filter as Mactive (i) where i = the active channel number.
(6) Determine the quantity of material collected on each no-flow filter using a calibrated fluorometer. Record the mass of fluorometric material on each no-flow filter as Mno-flow.
(7) Using 0.01 N NaOH, wash the surfaces of the added component or components which contact the aerosol flow. Determine the quantity of material collected using a calibrated fluorometer. Record the mass of fluorometric material collected in the wash as Mwash.
(8) Calculate the aerosol transport as:
Equation 29[GRAPHIC] [TIFF OMITTED] TR18JY97.091 where: i = the active channel number.
(9) Repeat paragraphs (f)(1) through (8) of this section for each channel, making each channel in turn the exclusive active channel.
(g) Test results. The candidate Class I sampler passes the aerosol transport test if T(i) is at least 97 percent for each channel. [62 FR 38799, July 18, 1997, as amended at 71 FR 61293, Oct. 17, 2006] Sec. Table E-1 to Subpart E of Part 53--Summary of Test Requirements for
Reference and Class I Equivalent Methods for PM 2.5 and PM
10-2.5 ----------------------------------------------------------------------------------------------------------------
Performance Part 50, appendix
Subpart E procedure Performance test specification Test conditions L reference----------------------------------------------------------------------------------------------------------------Sec. 53.52 Sample leak check Sampler leak check External leakage: Controlled leak Sec. 7.4.6.
test. facility. 80 mL/min, max. flow rate of 80
Internal leakage: mL/min.
80 mL/min, max.----------------------------------------------------------------------------------------------------------------Sec. 53.53 Base flow rate test. Sample flow rate.. 1. 16.67 [5%, L/ (a) 6-hour normal Sec. 7.4.1.
1. Mean........... min. operational test Sec. 7.4.2.
2. Regulation..... 2. 2%, max........ plus flow rate Sec. 7.4.3.
3. Meas accuracy.. 3. 2%, max........ cut-off test. Sec. 7.4.4.
4. CV accuracy.... 4. 0.3% max....... (b) Normal Sec. 7.4.5.
5. Cut-off........ 5. Flow rate cut- conditions.
off if flow rate (c) Additional 55
deviates more mm Hg pressure
than 10% from drop to simulate
design flow rate loaded filter.
for >60 [30 (d) Variable flow
seconds. restriction used
for cut-off test.Sec. 53.54 Power interruption Sample flow rate.. 1. 16.67 [5%, L/ (a) 6-hour normal Sec. 7.4.1.
test. 1. Mean........... min. operational test. Sec. 7.4.2.
2. Regulation..... 2. 2%, max........ (b) Nominal Sec. 7.4.3.
3. Meas. accuracy. 3. 2%, max........ conditions. Sec. 7.4.5.
4. CV accuracy.... 4. 0.3% max....... (c) Additional 55 Sec. 7.4.12.
5. Occurrence time 5. [2 min if >60 mm Hg pressure Sec. 7.4.13.
of power seconds.. drop to simulate Sec. 7.4.15.4.
interruptions. 6. [20 seconds.... loaded filter. Sec. 7.4.15.5.
6. Elapsed sample 7. [2%, max....... (d) 6 power
time. interruptions of
7. Sample volume.. various durations.----------------------------------------------------------------------------------------------------------------Sec. 53.55 Temperature and line Sample flow rate.. 1. 16.67 [5%, L/ (a) 6-hour normal Sec. 7.4.1.
voltage test. 1. Mean........... min. operational test. Sec. 7.4.2.
2. Regulation..... 2. 2%, max........ (b) Normal Sec. 7.4.3.
3. Meas. accuracy. 3. 2%, max........ conditions. Sec. 7.4.5.
4. CV accuracy.... 4. 0.3% max....... (c) Additional 55 Sec. 7.4.8.
5. Temperature 5. 2 C............ mm Hg pressure Sec. 7.4.15.1.
meas. accuracy. drop to simulate
6. Proper loaded filter.
operation.. (d) Ambient
temperature at -
20 and +40 C.
(e) Line voltage:
105 Vac to 125
Vac.----------------------------------------------------------------------------------------------------------------Sec. 53.56 Barometric pressure Sample flow rate.. 1. 16.67 [5%, L/ (a) 6-hour normal Sec. 7.4.1.
effect test. 1. Mean........... p;min. operational test. Sec. 7.4.2.
2. Regulation..... 2. 2%, max........ (b) Normal Sec. 7.4.3.
3. Meas. accuracy. 3. 2%, max........ conditions. Sec. 7.4.5.
4. CV accuracy.... 4. 0.3% max....... (c) Additional 55 Sec. 7.4.9.
5. Pressure meas. 5. 10 mm Hg....... mm Hg pressure
accuracy. drop to simulate
6. Proper loaded filter.
operation.. (d) Barometric
pressure at 600
and 800 mm Hg.----------------------------------------------------------------------------------------------------------------
(a) 4-hour Sec. 7.4.8.
control test. meas. accuracy. 2. 2 C............ simulated solar Sec. 7.4.10.
2. Ambient temp. 3. Not more than 5 radiation, Sec. 7.4.11.
meas. accuracy. C above ambient sampling.
3. Filter temp. temp. for more (b) 4-hour
control accuracy, than 30 min. simulated solar
sampling and non- radiation, non-
sampling. sampling.
(c) Solar flux of
1000 [50 W/m 2.----------------------------------------------------------------------------------------------------------------Sec. 53.58 Field precision test 1. Measurement 1. Pj <2 g/m 3 or RPj samplers at 1 Sec. 7.3.5.
2. Storage <5%. site for at least Sec. 8.
deposition test 2. 50 g 10 days. Sec. 9.
for sequential max. average (b) PM 2.5 conc. Sec. 10.
samplers. weight gain/blank >3 g/m 3.
filter. (c) 24- or 48-hour
samples.
(d) 5- or 10-day
storage period
for inactive
stored filters.----------------------------------------------------------------------------------------------------------------
The Following Requirement Is Applicable to Class I Candidate Equivalent Methods Only----------------------------------------------------------------------------------------------------------------Sec. 53.59 Aerosol transport Aerosol transport. 97%, min. for all Determine aerosol
test. channels.. transport through
any new or
modified
components with
respect to the
reference method
sampler before
the filter for
each channel.---------------------------------------------------------------------------------------------------------------- [72 FR 32208, June 12, 2007] Sec. Table E-2 to Subpart E of Part 53--Spectral Energy Distribution and
Permitted Tolerance for Conducting Radiative Tests ------------------------------------------------------------------------
Spectral Region
Characteristic -----------------------------------------------------
Ultraviolet Visible Infrared------------------------------------------------------------------------Bandwidth (m) to 0.40Irradiance (W/ 5 56 450 to 550 439
m\2\)Allowed Tolerance [35% [25% [10% [10%------------------------------------------------------------------------ [62 FR 38799, July 18, 1997; 63 FR 7714, Feb. 17, 1998]
Sec. Figure E-1 to Subpart E of Part 53--Designation Testing Checklist
DESIGNATION TESTING CHECKLIST
-------------------- -------------------- --------------------
Auditee Auditor signature Date ------------------------------------------------------------------------Compliance Status: Y = Yes N = No NA = Not applicable/
Not available Verification------------------------------------------------------ Comments
Verification Verified by Direct Observation (Includes-------------------- of Process or of Documented documentation of
Evidence: Performance, Design or who, what, where,
Application Spec. Corresponding when, why) (Doc.
Y N NA to Sections of 40 CFR Part 53 or #, Rev. #, Rev.
40 CFR Part 50, Appendix L Date)------------------------------------------------------------------------
..... ..... Performance Specification Tests
..... ..... Sample flow rate coefficient of
variation (Sec. 53.53) (L-
7.4.3)------------------------------------------------------------------------
..... ..... Filter temperature control
(sampling) (Sec. 53.57) (L-
7.4.10)------------------------------------------------------------------------
..... ..... Elapsed sample time accuracy
(Sec. 53.54) (L-7.4.13)------------------------------------------------------------------------
..... ..... Filter temperature control (post
sampling) (Sec. 53.57) (L-
7.4.10)------------------------------------------------------------------------
..... ..... Application Specification Tests------------------------------------------------------------------------
..... ..... Field Precision (Sec. 53.58) (L-
5.1)------------------------------------------------------------------------
..... ..... Meets all Appendix L
requirements (part 53, subpart
A, Sec. 53.2(a)(3)) (part 53,
subpart E, Sec. 53.51(a),(d))------------------------------------------------------------------------
..... ..... Filter Weighing (L-8)------------------------------------------------------------------------
..... ..... Field Sampling Procedure (Sec.
53.30, .31, .34)------------------------------------------------------------------------
..... ..... Design Specification Tests------------------------------------------------------------------------
..... ..... Filter (L-6)------------------------------------------------------------------------
..... ..... Range of Operational Conditions
(L-7.4.7)------------------------------------------------------------------------
The Following Requirements Apply Only to Class I Candidate Equivalent
Methods------------------------------------------------------------------------
..... ..... Aerosol Transport (Sec. 53.59)------------------------------------------------------------------------ Sec. Figure E-2 to Subpart E of Part 53--Product Manufacturing Checklist
PRODUCT MANUFACTURING CHECKLIST
-------------------- -------------------- --------------------
Auditee Auditor signature Date ------------------------------------------------------------------------Compliance Status: Y = Yes N = No NA = Not applicable/
Not available Verification------------------------------------------------------ Comments
Verification Verified by Direct Observation (Includes-------------------- of Process or of Documented documentation of
Evidence: Performance, Design or who, what, where,
Application Spec. Corresponding when, why) (Doc.
Y N NA to Sections of 40 CFR Part 53 or #, Rev. #, Rev.
40 CFR Part 50, Appendix L Date)------------------------------------------------------------------------
..... ..... Performance Specification Tests------------------------------------------------------------------------
..... ..... Assembled operational
performance (Burn-in test)
(Sec. 53.53)------------------------------------------------------------------------
..... ..... Sample flow rate (Sec. 53.53)
(L-7.4.1, L-7.4.2)------------------------------------------------------------------------
..... ..... Sample flow rate regulation
(Sec. 53.53) (L-7.4.3)------------------------------------------------------------------------
..... ..... Flow rate and average flow rate
measurement accuracy (Sec.
53.53) (L-7.4.5)------------------------------------------------------------------------
..... ..... Ambient air temperature
measurement accuracy (Sec.
53.55) (L-7.4.8)------------------------------------------------------------------------
..... ..... Ambient barometric pressure
measurement accuracy (Sec.
53.56) (L-7.4.9)------------------------------------------------------------------------
..... ..... Sample flow rate cut-off (Sec.
53.53) (L-7.4.4)------------------------------------------------------------------------
..... ..... Sampler leak check facility
(Sec. 53.52) (L-7.4.6)------------------------------------------------------------------------
..... ..... Application Specification Tests------------------------------------------------------------------------
..... ..... Flow rate calibration transfer
standard (L-9.2)------------------------------------------------------------------------
..... ..... Operational /Instructional
manual (L-7.4.18)------------------------------------------------------------------------
..... ..... Design Specification Tests------------------------------------------------------------------------
..... ..... Impactor (jet width) (Sec.
53.51(d)(1)) (L-7.3.4.1)------------------------------------------------------------------------
..... ..... Surface finish (Sec.
53.51(d)(2)) (L-7.3.7)------------------------------------------------------------------------
Sec. Appendix A to Subpart E of Part 53--References
(1) American National Standard Quality Systems--Model for Quality Assurance in Design, Development, Production, Installation, and Servicing, ANSI/ISO/ASQC Q9001-1994. Available from American Society for Quality, P.O. Box 3005, Milwaukee, WI 53202 (http://qualitypress.asq.org).
(2) American National Standard Quality Systems for Environmental Data and Technology Programs--Requirements with guidance for use, ANSI/ASQC E4-2004. Available from American Society for Quality, P.O. Box 3005, Milwaukee, WI 53202 (http://qualitypress.asq.org).
(3) Quality Assurance Guidance Document 2.12. Monitoring PM 2.5 in Ambient Air Using Designated Reference or Class I Equivalent Methods. U.S. EPA, National Exposure Research Laboratory, Research Triangle Park, NC, November 1998 or later edition. Currently available at http://www.epa.gov/ttn/amtic/pmqainf.html.
(4) Military standard specification (mil. spec.) 8625F, Type II, Class 1 as listed in Department of Defense Index of Specifications and Standards (DODISS), available from DODSSP-Customer Service, Standardization Documents Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 1911-5094.
(5) Quality Assurance Handbook for Air Pollution Measurement Systems, Volume IV: Meteorological Measurements. Revised March, 1995. EPA-600/R-94-038d. Available from National Technical Information Service, Springfield, VA 22161, (800-553-6847, http://www.ntis.gov). NTIS number PB95-199782INZ.
(6) Military standard specification (mil. spec.) 810-E as listed in Department of Defense Index of Specifications and Standards (DODISS), available from DODSSP-Customer Service, Standardization Documents Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 1911-5094. [62 FR 38799, July 18, 1997, as amended at 71 FR 61295, Oct. 17, 2006] Subpart F_Procedures for Testing Performance Characteristics of Class II
Equivalent Methods for PM 2.5
Source: 62 FR 38814, July 18, 1997, unless otherwise noted.