ASTM F555-01(2011)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: F555 − 01(Reapproved 2011) An American National Standard
Standard Test Method for
Motor Life Evaluation of an Upright Vacuum Cleaner
ThisstandardisissuedunderthefixeddesignationF555;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope F655Specification for Test Carpets and Pads for Vacuum
Cleaner Testing
1.1 This test method covers motor life evaluation of house-
hold or commercial single and dual motor upright vacuum
3. Terminology
cleaners (uprights with separate motors for creating the
3.1 Definitions of Terms Specific to This Standard:
vacuum and driving the floor brush). Self-propelled or power-
3.1.1 motor life—limited by failure of motor. Failure is
assist cleaners are not within the scope of this test method.
motor stoppage. In the case of a dual motor upright, the test
1.2 This test method is limited to evaluation of the upright
will be continued until both motors (vacuum motor and floor
vacuum cleaner electric motor(s).
brush motor) have failed. The motor that fails first will be
1.3 This test method provides a test to determine operating
replaced so that the test may continue on the other motor. The
life of the motor(s), before servicing is needed, by an acceler-
motor life of each motor will be recorded separately.
ated laboratory procedure. Motor(s) are tested while mounted 3.1.1.1 Discussion—Any failure integral with the motor,
and operated in the upright vacuum cleaner.
such as armature assembly, field assembly, housing(s),
bearings, motor cooling fan or primary air moving fan, brush
1.4 Thevaluesstatedininch-poundunitsaretoberegarded
assemblies, motor mounted nonresettable thermal protection
as standard. The values given in parentheses are mathematical
devices, or any other component judged to be integral with the
conversions to SI units, which are provided for information
motor, shall be judged as motor stoppage.
only and are not considered standard.
1.5 This standard does not purport to address all of the
4. Significance and Use
safety concerns, if any, associated with its use. It is the
4.1 Thetestresultsprovideanindicationofthemotorlifeof
responsibility of the user of this standard to establish appro-
an electric upright vacuum cleaner. End of motor life will be
priate safety and health practices and determine the applica-
judged in accordance with Section 3.
bility of regulatory limitations prior to use.
5. Apparatus and Materials
2. Referenced Documents
5.1 Voltage Regulator System,tocontroltheinputvoltageto
2.1 ASTM Standards:
the vacuum cleaner. The regulator system shall be capable of
D75Practice for Sampling Aggregates
maintaining the vacuum cleaner’s rated voltage 61% and
E337Test Method for Measuring Humidity with a Psy-
rated frequency 61 Hz having a wave form that is essentially
chrometer (the Measurement of Wet- and Dry-Bulb Tem-
sinusoidal with 3% maximum harmonic distortion for the
peratures)
duration of the test.
F431Specification for Air Performance Measurement Ple-
5.2 Voltmeter, to provide measurements accurate to within
num Chamber for Vacuum Cleaners
61%.
F608Test Method for Evaluation of Carpet Embedded Dirt
Removal Effectiveness of Household/Commercial
5.3 Timer and Switch, having the capacity to control the
Vacuum Cleaners
off/on duty cycle of the cleaner during the life test.
5.4 Sharp Edge Orifice Plate—a1 ⁄4-in. (32-mm) diameter
ThistestmethodisunderthejurisdictionofASTMCommitteeF11onVacuum orificeshallbeinaccordancewithFig.2ofSpecificationF431.
Cleaners and is the direct responsibility of Subcommittee F11.30 on Durability-
5.5 Wattmeter, to provide measurements accurate to within
Reliability.
Current edition approved Nov. 1, 2011. Published March 2012. Originally 1%.
approved in 1985. Last previous edition approved in 2006 as F555–01 (2006).
5.6 Plenum Chamber, conforming to the plenum chamber
DOI: 10.1520/F0555-01R11.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or described in Specification F431.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.7 Water Manometer, or equivalent instrument measuring
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. in increments of 0.1 in. (2.54 mm).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F555 − 01 (2011)
5.8 Barometer, to provide measurements accurate to 60.05 7. Procedure For Motor Life Evaluation
in. Hg (1.27 mm Hg), with scale divisions 0.02 in. (0.51 mm)
7.1 Determine initial performance as follows:
or finer.
7.1.1 Sealthenozzleopeningtotheplenumchamberwitha
5.9 Thermometer, having a range of at least 18 to 80°F (−8 manometer (or equivalent) connected to the chamber and with
to+27°C) and graduated in 1°F (0.5°C) increments.
a1 ⁄4-in. (32-mm) diameter sharp-edge orifice in the holder.
For the test, connect the agitator drive belt and a clean filter or
5.10 Psychrometer, meeting the requirements of Test
filter bag to the cleaner. The agitator shall be operating freely
MethodE337forthermometersgraduatedinincrementsof1°F
with the handle in the operating position as shown in Fig. 1.
(0.5°C).
7.1.2 With the cleaner sealed to the plenum chamber and
5.11 Test Carpet, conforming to the level loop carpet
without an orifice plate in the holder, energize the cleaner at
describedinSpecificationF655.Acarpetthatprovidesequiva-
rated voltage 61% and rated frequency 61 Hz for 5 min to
lent nozzle loading results may be used.
stabilize motor temperatures.
5.12 Carpet Padding (optional), if used, the test carpet 7.1.3 With the cleaner operating at a constant rated voltage,
paddingwillconformtothepaddingdescribedinSpecification insert the 1 ⁄4-in. (32-mm) diameter sharp-edge orifice into the
F655.
holder on the orifice box.
7.1.4 Record the manometer reading as soon as the reading
5.13 Test Fixture, a moving surface covered by the test
stabilizes.
carpet supported on the test pad, which moves with a horizon-
7.1.5 Record the wattage of the cleaner on the plenum
tal reciprocating motion, for a stroke distance of 27 in. (686
chamber. The wattage reading is used to monitor the cleaner
mm) in each direction at the average rate of 1.8 ft/s (0.55 m/s),
load.
which results in 24 cycles (forward and back) per minute.This
7.1.6 Measure the airflow and wattage reading every 168 h
motion shall be generated by rotating a 13.5-in. (343-mm)
to determine if some component has failed and degraded
radius arm, which shall be connected to the platform with an
performance, reducing the load on the cleaner during the life
arm at least 24 in. (610 mm) long or equivalent. This device
test. If degradation exceeds 40% see 7.9.1 – 7.9.3.
shall provide means to hold the cleaner fixed by its handle
7.1.7 Monitor the suction of the cleaner during the test in
stationary in the operating position while it is in contact with
additiontotheweeklymeasurementontheplenumchamberto
the reciprocating surface (see Fig. 1). Optionally, the cleaner
maintain loading and to ensure that no mechanical problems
canbemovedthroughthesamecycleasstatedabovewhilethe
exist.
carpeted platform is held stationary (see Fig. 1). For either
option, the reciprocating motion shall follow the same duty
7.2 Use a new section of carpet and padding without holes,
cycle as specified for the vacuum cleaner in 7.7. For the
tears, or other signs of wear when the test is started. Tautly
optional test fixture of Fig. 1, the reciprocating arm must be at
secure the carpet. The lay of the carpet pile shall be such that
either end of its horizontal motion at the start of each “on”
duringtheforwardstroke,thecleanermovesinthedirectionof
portion of the cycle.
the lay of the carpet pile. See Fig. 1.
5.14 Test Dirt, Wedron sand/talc mixture. See Annex A1.
7.3 Install the cleaner on the test fixture as shown in Fig. 1.
6. Sampling 7.4 If various settings are provided, set the motor speed
setting, suction regulator, nozzle height, or a combination
6.1 Testaminimumofthreeunits(oralargersamplesizeif
thereof,inaccordancewiththemanufacturer’sspecifiedsetting
desired) of similar models using the same motor style and
for using the cleaner on the level loop test carpet. The setting
amperage. Select all samples at random in accordance with
shall be the same as that used for Test Method F608.
good statistical practice. Results shall provide an 80% confi-
dence level within 610% of the mean value. If not, test 7.5 Keeptheloadwithinlimitsbycontrollingchangesinthe
additionalsamplesorreducetheresultsbythepenaltyfactoras carpet, agitator brush, drive belt, and airflow as determined in
calculated in 7.10. 7.5.1 – 7.5.4.
FIG. 1 Test Fixture
F555 − 01 (2011)
7.5.1 Replace the carpet when one fourth of the pile height ts
h 5 (2)
is worn away, except at the beginning and end of the stroke
=n
path.
where:
7.5.2 During the life test, change the agitator brush(s) every
168 h of cycling time. x¯ = mean of sample,
n = sample size,
7.5.3 Change the drive belt every 168 h of cycling time or
x = life, in hours of “on
...