RA011-Environmental-Technology-Verification

The U.S. Environmental Protection Agency (EPA) has created the Environmental Technology Verification
(ETV) Program to facilitate the deployment of innovative or improved environmental technologies through
performance verification and dissemination of information. The goal of the ETV Program is to further
environmental protection by substantially accelerating the acceptance and use of improved and costeffective
technologies. ETV seeks to achieve this goal by providing high quality, peer reviewed data on
technology performance to those involved in the design, distribution, financing, permitting, purchase, and
use of environmental technologies.
ETV works in partnership with recognized standards and testing organizations; stakeholder groups which
consist of buyers, vendor organizations, permitters, and other interested parties; and with the full
participation of individual technology developers. The program evaluates the performance of innovative
technologies by developing test plans that are responsive to the needs of stakeholders, conducting field or
laboratory tests (as appropriate), collecting and analyzing data, and preparing peer reviewed reports. All
evaluations are conducted in accordance with rigorous quality assurance protocols to ensure that data of
known and adequate quality are generated and that the results are defensible.
The Air Pollution Control Technology (APCT) program, one of 12 technology areas under the ETV program,
is operated by the Research Triangle Institute (RTI), in cooperation with EPA’s National Risk Management
Research Laboratory. The APCT program has recently evaluated the performance of baghouse filtration
products (BFPs) used primarily to control fine particulate matter (PM) emissions. This verification statement
summarizes the test results for the Standard Filter Corporation’s filter fabric PE16ZU.
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VERIFICATION TEST DESCRIPTION
All tests were performed in accordance with the APCT draft “Generic Verification Protocol for Baghouse
Filtration Products,” available at the Website http://etv.rti.org/apct/pdf/baghouseprotocol.pdf . The
protocol is based on and describes modifications to the equipment and procedures described in Verein
Deutscher Ingenieure (VDI 3926, Part 2), “Testing of Filter Media for Cleanable Filters under Operational
Conditions,” December 1994. The document is available from Beuth Verlag GmbH, 10772 Berlin,
Germany. The protocol also includes requirements for quality management, quality assurance,
procedures for product selection, auditing of the test laboratories, and test reporting format.
Outlet particle concentrations from a test fabric are measured with an impactor equipped with appropriate
substrates to filter and measure particles 2.5 Wm and smaller in aerodynamic diameter (PM 2.5) within the
dust flow. Outlet particle concentrations are determined by weighing the mass increase rate of dust
collected in each impactor filter stage and dividing by the gas volumetric flow through the impactor.
Particle size is measured while injecting the test dust into the air upstream of the baghouse filter sample.
The test dust is dispersed into the flow using a brush-type dust feeder. The particle size distributions in
the air are determined both upstream and downstream of the test filter fabric to provide accurate results
for penetration through the test filter of particles equal to or smaller than 2.5 Wm in diameter. All tests are
performed using a constant 18.4 ± 3.6 g/dscm (8.0 ± 1.6 gr/dscf) loading rate, a 180 ± 9.0 m/h (9.8 ± 0.5
fpm) filtration velocity (identical to gas-to-cloth ratio*), and aluminum oxide test dust with a measured
mass mean aerodynamic diameter of 1.0 (average of three impactor runs) ± 0.5 Wm. All baghouse
filtration products are tested in their initial (i.e., clean) condition.
Each of three or more test runs consisted of the following segments:
` Conditioning period - 10,000 rapid pulse cleaning cycles.
` Recovery period - 30 normal pulse cleaning cycles.
` Performance test period - 6-hour filter fabric test period with impactor.

baghouse dust collector
used torit dust collector
dust collector filter
dust collector system
dust collector manufacturer
dust collector bag
cartridge collector dust used
dust collector cartridge filter

TECHNOLOGY DESCRIPTION
The Standard Filter Corporation’s PE16ZU filter fabric is a stratified microdenier polyester non-woven
filter media for use in fine particulate capture. It is intended to be a low-pressure drop, high efficiency
material. A photograph of the fabric is shown in Figure 1. Sample material was received as nine 46 x 91
cm (18 x 36 in.) swatches marked with the manufacturer’s model number, year and month of manufacture,
and cake side. Three of the swatches were selected at random for preparing three test specimens 150 mm
(5.9 in.) in diameter.
VERIFICATION OF PERFORMANCE
Verification testing of the Standard Filter Corporation’s PE16ZU filter fabric was performed during July
17 - July 20, 2000, at the test facility of ETS, Incorporated, 1401 Municipal Road, Roanoke, VA 24012.
Test conditions are listed in Table 1. The overall test results are summarized in Table 2, and are the
averages of the three individual tests.
______________
*Filtration velocity and gas-to-cloth ratio are used interchangeably and are defined as the gas flow rate divided by the
surface area of the cloth.
RTI’s APCT quality assurance officer has reviewed the test results and the quality control data and has
concluded that the data quality objectives given in the generic verification protocol have been attained.
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This verification statement addresses five aspects of filter fabric performance: filter outlet PM 2.5
concentration, filter outlet total mass concentration, pressure drop, filtration cycle time, and mass gain on
the filter fabric. Users may wish to consider other performance parameters such as temperature, service
life, and cost when selecting a filter fabric for their application.
In accordance with the generic verification protocol, this Verification Statement is applicable to filter
media manufactured between the publication date of the Verification Statement (10/12/00) and 3 years
thereafter.
TABLE 1. TEST CONDITIONS FOR
BAGHOUSE FILTRATION PRODUCT BRAND/MODEL: STANDARD FILTER
CORPORATION FABRIC PE16ZU
Test parameter Value
Dust concentration 18.4 ± 3.6 g/dscm (8.0 ± 1.6 gr/dscf)
Filtration velocity (G/C) 180 ± 9 m/h (9.8 ± 0.5 fpm)
Pressure loss before cleaning 1,000 ± 12 Pa (4 ± 0.05 in. w.g.)
Tank pressure 0.52 ± 0.03 MPa (75 + 5 psi)
Valve opening time 50 ± 5 ms
Air temperature 25 + 2 oC (77 + 4 oF)
Relative humidity 50 ± 10 %
Raw gas stream flow rate 5.8 m3/h (3.4 cfm)
Sample gas stream flow rate 1.13 m3/h (0.67 cfm)
Number of filtration cycles
• During conditioning period 10,000 cycles
• During recovery period 30 cycles
Performance test duration 6 h
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Figure 1. Photograph of the Standard Filter Corporation’s PE16ZU filter fabric
TABLE 2. BAGHOUSE FILTRATION PRODUCT THREE-RUN AVERAGE
TEST RESULTS FOR STANDARD FILTER CORPORATION FABRIC PE16ZU
Verification parameter
At
verification
test
conditions
At
manufacturer’s
requested test
conditions*
Outlet particle concentration at standard conditions**
PM 2.5, g/dscm
(gr/dscf)
Total mass, g/dscm ***
(gr/dscf)
0.0000094
(0.0000041)
0.000019
(0.0000082)
NA
NA
Residual pressure drop, cm w.g. (in. w.g.) 14.56 (5.73) NA
Residual pressure drop increase, cm w.g. (in. w.g.) 6.03 (2.37) NA
Filtration cycle time, s 6 NA
Mass gain of test sample filter, g (gr) 1.60 (24.69) NA
Number of cleaning cycles 3,599 NA
Values shown are averages for three tests.
NA = Not applicable
* As requested by manufacturer
**Standard conditions: 101.3 kPa (14.7 psia) and 20 o C (68 oF).
*** Total mass includes the mass of PM 2.5 and larger particles that passed through the fabric.
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NOTICE: ETV verifications are based on an evaluation of technology performance under specific,
predetermined criteria and the appropriate quality assurance procedures. EPA and RTI make no expressed
or implied warranties as to the performance of the technology and do not certify that a technology will
always operate as verified. The end user is solely responsible for complying with any and all applicable
federal, state, and local requirements. Mention of commercial product names does not imply endorsement.