ASTM F1692-01(2006)

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An American National Standard
Designation:F1692–01(Reapproved 2006)
Standard Test Method for
Life Evaluation of a Turbine-Powered Nozzle for Household
Central Vacuum Cleaning Systems
This standard is issued under the fixed designation F1692; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope F655 Specification for Test Carpets and Pads for Vacuum
Cleaner Testing
1.1 This test method covers the turbine-powered nozzle
used in household central vacuum cleaning systems.
3. Terminology
1.2 This test method provides a test for determining the
3.1 Definitions of Terms Specific to This Standard:
operating turbine life in hours by an accelerated laboratory
3.1.1 turbine stoppage—for turbine-powered nozzles, any
procedure.Theturbineistestedwhilemountedandoperatedin
failure integral with the turbine assembly such as housing(s),
the power nozzle.
bearings,oranyothercomponentjudgedtobeintegralwiththe
1.3 This test method covers only the turbine-powered
turbine.
nozzle. The system used to provide the airflow source is not
under consideration.
4. Significance and Use
1.4 This test method is limited to the determination of
4.1 The test results provide an indication of the turbine-
turbine life for a household turbine-powered nozzle.
powered nozzle life. The end of turbine life will be judged in
1.5 The values stated in inch-pound units are to be regarded
accordance with 3.1.1.
as the standard. The values given in parentheses are for
information only.
5. Apparatus and Materials
1.6 This standard does not purport to address all of the
5.1 Voltage Regulator System—to control the input voltage
safety concerns, if any, associated with its use. It is the
to the vacuum cleaner or airflow source.The regulator must be
responsibility of the user of this standard to establish appro-
capable of maintaining the vacuum cleaner or the airflow
priate safety and health practices and determine the applica-
source’s rated voltage 61% and rated frequency 61 Hz with
bility of regulatory limitations prior to use.
a waveform that is essentially sinusoidal with 3% maximum
harmonic distortion for the duration of the test.
2. Referenced Documents
2 5.2 Voltmeter, to provide measurements accurate to within
2.1 ASTM Standards:
61%.
D75 Practice for Sampling Aggregates
5.3 Timer and Switch, having the capacity to control the
E337 Test Method for Measuring Humidity with a Psy-
off/on duty cycle of the nozzle and airflow source during the
chrometer (the Measurement of Wet- and Dry-Bulb Tem-
life test.
peratures)
5.4 Wattmeter, to provide measurements accurate to within
F431 Specification for Air Performance Measurement Ple-
61%.
num Chamber for Vacuum Cleaners
5.5 Sharp-Edge Orifice Plate—Theorifice,1 ⁄4-in.(32-mm)
F608 Test Method for Evaluation of Carpet Embedded Dirt
diameter, shall be in accordance with the orifice plate illus-
Removal Effectiveness of Household/CommercialVacuum
trated in Specification F431.
Cleaners
5.6 Plenum Chamber, conforming to the plenum chamber
specifications stated in Specification F431.
ThistestmethodisunderthejurisdictionofASTMCommitteeF11onVacuum
5.7 Water Manometer, or equivalent instrument, measuring
Cleaners and is the direct responsibility of Subcommittee F11.30 on Durability-
in increments of 0.1 in. (2.54 mm).
Reliability.
5.8 Barometer, with an accuracy of 60.05 in. (1.27 mm)
Current edition approved Jan. 1, 2006. Published January 2006. Originally
Hg,capableofmeasuringuncorrectedbarometricpressure(test
approved in 1996. Last previous edition approved in 2001 as F1692–01. DOI:
10.1520/F1692-01R06.
station pressure) with scale divisions of 0.02 in. (0.51 mm) or
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
finer.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.9 Thermometer, having a range from at least 18 to 80°F
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. (−8 to+27°C) and graduated in 1°F (0.5°C) increments.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F1692–01 (2006)
5.10 Psychrometer, meeting the requirements of Test 6. Sampling
Method E337, with thermometers graduated in increments of
6.1 Test a minimum of three units (or a larger sample size,
1°F (0.5°C).
if desired) of similar models using the same motor style and
5.11 Test Carpet, conforming to the specifications for level
amperage. Select all samples at random in accordance with
loop carpet as described in Specification F655. A carpet that
good statistical practice. Results shall provide an 80% confi-
provides equivalent nozzle loading results may be used.
dence level with 610% of the mean value. If not, test
additionalsamplesorreducetheresultsofthepenaltyfactoras
5.12 Test Carpet Padding, conforming to the padding de-
scribed in Specification F655. calculated in 7.12.
5.13 Test Cleaner or Airflow Source—The turbine nozzle
7. Procedure for Turbine Life Evaluation
lifeevaluationtestsshallbeconductedusingtheairflowsource
and voltage resulting from the components that compose the 7.1 Determine the initial performance. The suction of the
cleanerorairflowsource,withtheturbinenozzleattached,isto
combination system with which the turbine nozzle is to be
used. If used with several systems, the one with the maximum be determined and will be used to ensure that no leaks develop
to reduce the load on the nozzle during the test. For this initial
airflow shall be used.
test, the nozzle opening is to be sealed to the ASTM plenum
5.13.1 Option—A simulated airflow source and adjusted
chamber with the manometer (or equivalent) connected to the
voltage may be used if they are equal to or exceed the central
plenum chamber. The turbine nozzle is to have the agitator
vacuum cleaning system with which the turbine nozzle is to be
drive connected and a new filter bag in the cleaner or airflow
used.
source. The agitator shall be operating freely, with the handle
5.14 Test Fixture—A moving surface, covered by the test
in operating position, as shown in Fig. 1.
carpet supported on the test pad, which moves with a horizon-
7.1.1 With the turbine nozzle opening sealed to the plenum
tal reciprocating motion, for a stroke distance of 27 in. (686
chamberandwithoutanorificeplateintheholder,energizethe
mm) in each direction at the average rate of 1.8 ft/s (0.55 m/s),
cleaner or airflow source at its rated voltage 6 1% and rated
resulting in 24 cpm (forward and back). This motion shall be
frequency 61 Hz for 5 min. For vacuum cleaners with dual
generatedbyrotatinga13.5-in.(343-mm)radiusarmthatshall
nameplate voltage ratings, conduct the testing at the highest
be connected to the platform with a suitable link (see Fig. 1).
voltage. See 5.13 if an optional airflow source is used.
This device shall provide means to hold the turbine nozzle
7.1.2 With the airflow source operating at the regulated
fixedsecurelybyitshandleintheoperatingpositionwhileitis
voltages stated in 7.1.1, insert the sharp-edge orifice plate in
in contact with the reciprocating surface. The turbine nozzle
the holder on the orifice box, in accordance with 5.5 and 5.6.
shallberestrainedsuitablyinthehorizontaloperatingplaneyet
7.1.3 Record the manometer reading of the combined tur-
allowed freedom of movement in the vertical plane for
bine nozzle and airflow source as soon as the reading is
operation.
stabilized.Thismanometerreadingistobeusedasthebaseline
5.14.1 Option—The turbine nozzle can be subjected to the
to monitor the degradation in performance during the test.
samecycleasstatedin5.14whilethecarpetedplatformisheld
7.1.4 Record the wattage of the airflow source while con-
stationary (see Fig. 1).
nected to the turbine nozzle and mounted on the plenum
5.14.2 For either option, the reciprocating motion shall
chamber. This wattage reading is to be used as the baseline to
follow the same duty cycle as specified for the vacuum cleaner
monitor the nozzle load during the test.
or airflow source and turbine nozzle in 7.7.
7.1.5 Repeat the initial test sequence described in 7.1-7.1.4,
5.14.3 The turbine nozzle’s airflow source shall be station-
recording the manometer and wattage readings of only the
ary and positioned so that the hose will be submitted to
cleaner or airflow source connected to the plenum chamber.
minimum stress.
7.1.6 The airflow and wattage reading shall be measured
5.15 Test Dirt, Wedron sand/talc mixture. See Annex A1.
every 168 h to determine whether some component has failed
FIG. 1 Test Fixture
F1692–01 (2006)
anddegradedtheperformance,reducingtheloadonthenozzle determine whether it exceeds the degradation limitation in
during the life test. See 7.10 if degradation exceeds 40%. accordance with 7.10.1.
7.9 Spread 10 g of the standard test dirt mixture on the test
7.1.7 Monitor the suction at the turbine nozzle daily during
carpet (Annex A1) at the start of the test and once every 24 h
the test, in addition to the weekly measurement on the plenum
of cycling time. Spread evenly over the area traversed by the
chamber, to maintain loading and to ensure that no mechanical
nozzle opening.
problems exist.
7.10 Measure the airflow and wattage readings every 168 h
7.2 Use a new section of carpet and padding, in accordance
during the test in accordance with the instructions in 7.1-7.1.5
with5.11and5.12,withoutholes,tears,orothersignsofwear,
to determine whether some component has failed or degraded,
when
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