ASTM F884-01(2006)
(Test Method)Standard Test Method for Motor Life Evaluation of a Built-In (Central Vacuum) Vacuum Cleaner
Standard Test Method for Motor Life Evaluation of a Built-In (Central Vacuum) Vacuum Cleaner
SIGNIFICANCE AND USE
The test results provide an indication of the motor life of an electric vacuum cleaner. The end of the motor life will be judged in accordance with Section 3.
SCOPE
1.1 This test method is limited to motor life evaluation of central vacuum cleaners.
1.2 This test method provides a test to determine operating life of the motor, before servicing is needed, by an accelerated laboratory procedure. The motor is tested while mounted and is operated in central vacuum cleaner.
1.3 The values as stated in inch-pound units are to be regarded as the standard. The values in parentheses are for information only.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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An American National Standard
Designation:F884–01(Reapproved 2006)
Standard Test Method for
Motor Life Evaluation of a Built-In (Central Vacuum) Vacuum
Cleaner
ThisstandardisissuedunderthefixeddesignationF884;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3.1.2 motor life—limited by the failure of the motor. Any
failure integral with motor, such as armature assembly, field
1.1 This test method is limited to motor life evaluation of
assembly, housing(s), bearings, motor cooling fan and primary
central vacuum cleaners.
air moving fan, or both, brush assemblies, motormounted
1.2 This test method provides a test to determine operating
nonresetable thermal protection devices, or any other compo-
life of the motor, before servicing is needed, by an accelerated
nent judged to be integral with the motor, shall be judged as
laboratoryprocedure.Themotoristestedwhilemountedandis
motor stoppage.
operated in central vacuum cleaner.
1.3 The values as stated in inch-pound units are to be
4. Significance and Use
regarded as the standard. The values in parentheses are for
4.1 Thetestresultsprovideanindicationofthemotorlifeof
information only.
an electric vacuum cleaner. The end of the motor life will be
1.4 This standard does not purport to address all of the
judged in accordance with Section 3.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5. Apparatus and Materials
priate safety and health practices and determine the applica-
5.1 Voltage Regulator System—to control the input voltage
bility of regulatory limitations prior to use.
to the vacuum cleaner. The regulator must be capable of
2. Referenced Documents maintaining the Central Vacuum’s rated voltage 61% and
2 rated frequency 61 Hz with a waveform that is essentially
2.1 ASTM Standards:
sinusoidal with 3% maximum harmonic distortion for the
E337 Test Method for Measuring Humidity with a Psy-
duration of the test.
chrometer (the Measurement of Wet- and Dry-Bulb Tem-
5.2 Voltmeter, to provide measurements accurate to within
peratures)
61%
F431 Specification for Air Performance Measurement Ple-
5.3 Timer and Switch—The timer and switch shall have the
num Chamber for Vacuum Cleaners
capacity to control the off/on duty cycle of the cleaner during
F608 Test Method for Evaluation of Carpet Embedded Dirt
the life test.
Removal Effectiveness of Household/CommercialVacuum
5.4 Sharp Edge Orifice Plate—The orifice, 0.75 in. (19.05
Cleaners
mm) in diameter, shall be in accordance with the figure
3. Terminology illustrating orifice plate detail in Specification F431.
5.5 Wattmeter, to provide measurements accurate to within
3.1 Definitions of Terms Specific to This Standard:
1%.
3.1.1 failure—motor stoppage.
5.6 Plenum Chamber,inaccordancewiththeplenumcham-
ber described 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 to 60.05 in. (1.27 mm)
Current edition approved Jan. 1, 2006. Published January 2006. Originally
approved in 1990. Last previous edition approved in 2001 as F884–01. DOI:
Hg,capableofmeasuringuncorrectedbarometricpressure(test
10.1520/F0884-01R06.
stationpressure)withscaledivision0.02in.(0.51mm)orfiner.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.9 Thermometer, having a range from 18 to 80°F (−8 to
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
27°C) and graduated in 1°F (0.5°C) increments.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F884–01 (2006)
5.10 Psychrometer—The psychrometer shall meet the re- turer’s recommended cleaning procedure is to be used when-
quirements ofTest Method E337 with thermometers graduated ever specified in instruction booklets. Where no procedure is
in increments of 1°F (0.5°C). specified, replace reusable filters.When a new or cleaned filter
5.11 Test Fixture—Anysuitablesurfacethatwillsupportthe is placed in the cleaner, check the cleaner on the plenum
vacuum cleaner in the normal operating position. chamber for degradation of performance in accordance with
7.7.1 and 7.7.2.
6. Sampling
7.5 Perform all tests in a controlled ambient atmosphere
6.1 Testaminimumofthreeunits(oralargersamplesizeif
with a dry-bulb temperature from 68 to 81°F (20 to 27°C) and
desired) of similar models using the same motor style and
a relative humidity of 30 to 50%.
amperage. Select all samples at random in accordance with
7.6 Operatethecleaneratthevoltagespecifiedin7.1.2from
good statistical practice. Results shall provide an 80% confi-
a remote on/off switch and timer with a duty cycle of 8 min of
dence level within 610% of the mean value. If not, test
operation, followed by 2 min off.
additionalsamplesorreducetheresultsbythepenaltyfactoras
7.7 Test for degradation of performance every 168 h of
calculated in 7.9.
cycling time.
7.7.1 Performance Degradation—In accordance with the
7. Procedures for Motor Life Evaluation
procedure in Annex A1, use the suction at the start of the test
7.1 Determine initial performance as follows:
as the base for determining the 40% degradation of perfor-
7.1.1 Connect the manometer (or equivalent) to the plenum
mance (see 7.1.4).
chamber. Install a new filter bag in the test cleaner, if required,
7.7.2 If degradation is present, determine and correct the
before conducting performance tests.
cause. Replace any part, except the motor or its integral parts
7.1.2 Withaminimumlengthof2in.insidediametertubing
tobringthesystemwithinperformancelimits,andcontinuethe
sealed to the plenum chamber and to the cleaner, and without
test until the motor stops.
an orifice plate in the holder, energize the cleaner at its rated
7.8 Judge the end of the test in conformity with Section 3.
voltage 61%andratedfrequency 61Hzfor5mintostabilize
Express life in terms of “on” hours only.
motor temperatures. For vacuum cleaners with dual nameplate
voltage rating, conduct testing at the highest voltage. 7.9 Calculate an estimate of the population mean in accor-
7.1.3 With the cleaner operating at a constant rated voltage, dance with the following procedure:
insert the 0.75-in. (19.05-mm) diameter sharp-edge orifice into
7.9.1 Calculat
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