ASTM F1410-98(2003)
(Test Method)Standard Test Method for Measuring Maximum Functional Wet Volume of Utility Vacuum Cleaners
Standard Test Method for Measuring Maximum Functional Wet Volume of Utility Vacuum Cleaners
SCOPE
1.1 This test method is applicable to any vacuum cleaner that is classified as a utility vac.
1.2 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.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are for information only.
General Information
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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An American National Standard
Designation:F 1410–98 (Reapproved 2003)
Standard Test Method for
Measuring Maximum Functional Wet Volume of Utility
Vacuum Cleaners
This standard is issued under the fixed designation F 1410; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 5. Sampling
1.1 This test method is applicable to any vacuum cleaner 5.1 Test a sample of each basic model until a 90%
that is classified as a utility vac. confidence level (about the mean) is established within 65%
1.2 This standard does not purport to address all of the of the mean value.Test a minimum of three samples. Select all
safety concerns, if any, associated with its use. It is the samplesatrandominaccordancewithgoodstatisticalpractice.
responsibility of the user of this standard to establish appro-
NOTE 1—SeeAppendixX1formethodofdetermining90%confidence
priate safety and health practices and determine the applica-
level.
bility of regulatory limitations prior to use.
6. Conditioning
1.3 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are for informa-
6.1 Test Room—The test room should be maintained at
tion only.
70 65°F (21 63°C) and 45 to 55% relative humidity.
2. Significance and Use
7. Procedure
2.1 This test method covers a procedure to determine the
7.1 Equip the vac with a new filter.
maximum functional wet volume that the utility vac is capable
7.2 Weigh the empty vac including the power supply cord.
of collecting.
(Do not include the hose or any accessories.)
7.3 Unit must be on a level surface and the shut-off device
3. Apparatus
must be in place if the unit is designed to be used with one.
3.1 Voltmeter, to measure input to the cleaner, providing
7.4 Level of the water to be picked up shall be lower than
measurements accurate to within 61%.
the floor level of vac such that no siphoning occurs.
3.2 Voltage Regulator System—The regulator shall be ca-
7.5 Tests are to be conducted at the nameplate voltage
pable of maintaining the rated voltage (61%) and frequency
(61%) and frequency (61 Hz), when measured at the
(61 Hz) with sinusoidal wave form.
appliance plug. For cleaners with dual nameplate voltage
3.3 Temperature and Relative Humidity Indicators, to pro-
ratings, conduct tests at the highest voltage.
vide temperature measurements accurate to within 61°F (6 ⁄2
7.6 Using the largest hose supplied with the unit, vacuum
°C) and humidity measurements accurate to within 62%
water into the vac-tank. Maintain a water pick up rate of 2
relative humidity.
gal/min throughout the filling cycle.
3.4 Weighing Scale—The scale shall be accurate to 1% of
7.7 Collect water with the vac until either one of the
fullscaleandhaveaweighingcapacityofatleast250lb(113.4
following occurs:
kg).
7.7.1 The unit stops collecting water, or
7.7.2 Water overflows from the vac.
4. Materials
7.8 Stop unit and disconnect hose from the vac. Any water
4.1 Water.
remaining in the hose shall not be included in the maximum
functional volume.
7.9 Weigh the filled vac, including the power supply cord.
ThistestmethodisunderthejurisdictionofASTMCommitteeF11onVacuum
7.10 Calculate the maximum functional volume by dividing
Cleaners and is the direct responsibility of Subcommittee F11.23 on Filtration.
the weight of the water collected by the weight per gallon of
Current edition approved Oct. 1, 2003. Published October 2003. Originally
approved in 1992. Last previous edition approved in 1998 as F1410–98. water as follows:
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F 1410–98 (2003)
weight ~lb!vacfilled 2weight ~lb!vacempty
average(coefficientofvariation)wasfoundtobe2.5%orless.
volume,gal 5
8.328lb/gal
Two values from a sample of three should be considered
suspect (at the 95% confidence level) if they differ by more
7.11 Recordthemaximumfunctionalwetvolumeingallons
than 7.1%.
(litres) to the nearest tenth.
7.12 Repeat steps 7.1 through 7.12 two more times. The
NOTE 3—The percent difference=(larger−smaller)/(larger) 3100.
average of the three tests represents the maximum wet func-
8.1.2 Reproducibility (Multilaboratory, Multiday):
tional volume that the utility vac is capable of collecting.
8.1.2.1 Reproducibility for wet volume values of 5 gal and
8. Precision and Bias
under, the standard deviation divided by the average (coeffi-
8.1 Precision—These statements are based on an interlabo-
cient of variation) with a single unit tested in different
ratory test involving six laboratories and four units. The range
laboratories was found to be 10.7% or less. Two such values
of maximum functional volume of the units was from 3.8 to
should be considered suspect (at the 95% confidence level) if
13.5 gal.
they differ by more than 33%.
8.1.1 Repeatability (Single-Operator-Laboratory, Multi-
8.1.2.2 Reproducibility for wet volume values over 5 gal,
day):
the standard deviation divided by the average (coefficient of
8.1.1.1 Repeatability for wet volume values of 5 gal and
variation) with a single unit tested in different laboratories was
under, within a laboratory divided by the average (coefficient
found to be 3.2% or less. Two such values should be
of variation) was found to be 4.5% or less.Two values from a
considered suspect (at the 95% confidence level) if they differ
sample of three should be considered suspect (at the 95%
by more than 11.5%.
confidence level) if they differ by more than 12.8%.
8.2 Bias—No justifiable statement can be made on the bias
of this test method for the properties listed. The true values of
NOTE 2—The percent difference=(larger−smaller)/(larger) 3100.
the properties cannot be established by acceptable referee
8.1.1.2 Repeatability for wet volume values of over 5 gal,
methods.
the standard deviation within a laboratory divided by the
9. Keywords
Supporting data are available from ASTM Headquarters. Request RR: F11-
9.1 utility vacuum cleaner; wet volume
1009.
APPENDIX
(Nonmandatory Information)
X1. DETERMINATION OF 90 % CONFIDENCE INTERVAL
X1.1 The most common and ordinarily the best single X1.2.3 Compute the upper limit (X ) and the lower limit
µ
(X ):
estimate of the population mean µ is simply the arithmetic
L
mean of the measurements. When a sample is taken from a
X 5 X 1 ts/ n
=
µ
population, the sample average will seldom be exactly the
X 5 X 2 ts/n
L
same as the population average; however, it is hoped to be
fairly close so that the statement of confidence interval will
where:
bracket the true mean.
t = value from Table X1.1 at (1−> a)/2.
X1.2 The following procedure gives an interval which is
X1.3 The interval from X to X is a 100(1− a)%
L µ
expectedtobracketµ,thetruemean,100(1− a)%ofthetime.
confidence interval for the population mean; that is, we may
Thisprovidesa100(1− a)%confidencelevel. aisthechance
assert with 100(1− a)% confidence that X < < X . It can be
L µ µ
of being wrong, therefore, 1− a is the probability of being
seen that as n→ `, ts/ n →0. Thus, a smaller confidence
=
correct.
interval for the mean can be obtained by using larger samples.
X1.2.1 Choose the desired confidence level, 1− a.
In application, we are interested in a 90% confidence interval
X1.2.2 Compute Mean ( X ):
of the population mean (a=0.10), and we desire the quantity
ts/ n to be less than some value, A. Values of t = t
n =
(1−a)/2 0.95
X 5 X
will be taken from Table X1.1 and used in the computation.
( i
n
i 51
2 2 X1.4 Procedure:
n S X 2~S X !
i i
StandardDeviation, s 5
Œ
n ~n 21!
X1.4.1 Step 1
...
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