ASTM F1326-02(2006)
(Test Method)Standard Test Method for Measuring Maximum Dry Volume of Utility Vacuum Cleaners
Standard Test Method for Measuring Maximum Dry Volume of Utility Vacuum Cleaners
SIGNIFICANCE AND USE
This test method describes a procedure to determine the maximum functional dry volume that the utility vac is capable of collecting.
SCOPE
1.1 This test method is applicable to any vacuum cleaner that is classified as a utility vac.
1.2 The values stated in inch-pound units are to be regarded as standard. The values in parentheses are for information only.
1.3 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.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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An American National Standard
Designation:F1326–02 (Reapproved 2006)
Standard Test Method for
Measuring Maximum Dry Volume of Utility Vacuum
Cleaners
This standard is issued under the fixed designation F1326; 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 5. Materials
1.1 This test method is applicable to any vacuum cleaner 5.1 Water.
that is classified as a utility vac.
6. Sampling
1.2 The values stated in inch-pound units are to be regarded
6.1 A minimum of three units of the same model vacuum
asstandard.Thevaluesinparenthesesareforinformationonly.
1.3 This standard does not purport to address all of the cleaner selected at random in accordance with good statistical
practice shall constitute the population sample.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 6.1.1 To determine the best estimate of maximum dry
volume for the population of the vacuum cleaner model being
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. tested, the arithmetic mean of the maximum dry volume of the
sample from the population shall be established by testing it to
2. Referenced Documents
a 90% confidence level within 65% of the mean value of the
2.1 ASTM Standards: maximum dry volume.
E177 Practice for Use of the Terms Precision and Bias in 6.1.2 Annex A1 provides a procedural example for deter-
ASTM Test Methods mining the 90% confidence level and when the sample size
E691 Practice for Conducting an Interlaboratory Study to shall be increased.
Determine the Precision of a Test Method
NOTE 1—SeeAnnexA1 for a method for determining 90% confidence
level.
3. Significance and Use
3.1 This test method describes a procedure to determine the 7. Conditioning
maximum functional dry volume that the utility vac is capable
7.1 TestRoom—Thetestroomshouldbemaintainedat70°F
of collecting.
6 5°F (21°C 6 3°C) and 45 to 55% relative humidity.
7.2 Condition the water in accordance with 7.1.
4. Apparatus
4.1 Temperature and humidity indicators, to provide tem- 8. Procedure
perature measurements accurate to within 61°F (6 ⁄2 °C) and
8.1 Dry Pick Up Capacity:
humidity measurements accurate to within 62% relative
8.1.1 Calculatethevolumeingallonsofthedustdrumusing
humidity.
the appropriate formulas, neglecting all projections into the
4.2 Weighing Scale, the scale shall be accurate to 4 oz (114
drum.
g) and have a weighing capacity of at least 120 lbs (54.4 kg).
8.1.2 Calculate all projections into the drum using the
appropriate formulas in gallons.
8.1.3 Subtract the total projection volumes from the dirt
This test method is under the jurisdiction ofASTM Committee F11 onVacuum
drum volume to arrive at the maximum dry volume. Round
Cleaners and is the direct responsibility of Subcommittee F11.23 on Filtration.
down to the nearest ⁄4 gal (0.936 L).
CurrenteditionapprovedJuly1,2006.PublishedJuly2006.Originallyapproved
in 1991. Last previous edition approved in 2002 as F1326–02. DOI: 10.1520/ 8.1.4 Record the maximum functional volume in gallons
F1326-02R06.
(litres) within ⁄4 gal (0.936 L).
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
9. Procedure
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 9.1 Dry Pick Up Capacity (Alternative Method):
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F1326–02 (2006)
TABLE 1 Repeatability and Reproducibility
Standard Deviation of Standard Deviation of
Max. Functional Repeatability Limit, Reproducibility Limit,
Repeatability, Reproducibility,
Volume (gallons) r R
S S
r R
5 gal. and less 0.068 0.190 0.380 1.063
Over 5 gal. 0.118 0.3297 0.468 1.3116
9.1.1 An alternative method is allowed when the shape of shouldbeconsideredsuspectifthedifferencebetweenanytwo
the vacuum cleaner is irregular, and the calculations of Section of the three values is greater than the respective value of the
8 become complex.
repeatability limit r, listed in Table 1.
9.1.1.1 Blocktheinletofthedustdrumandfillitwithwater.
10.4.4 If the absolute value of the difference of any pair of
9.1.1.2 Line the projections into the drum with an appropri-
measuredresultsfromthreetestrunsperformedwithinasingle
ate water-proof material and submerse into the dust drum.
laboratory is not equal to or less than the respective repeatabil-
9.1.1.3 Allow the excess water to flow out of the dust drum
ity limit listed in Table 1, that set of test results shall be
andthenmeasurethevolumeofthewaterremaininginthedust
considered suspect.
drum. Round down to the nearest ⁄4 gal.
10.5 Reproducibility (Multi-day Testing and Single Opera-
9.1.1.4 Record the maximum functional volume in gallons
tor within Multiple Laboratories)—The ability to repeat the
(litres) within ⁄4 gal (0.936 L).
test within laboratories.
9.1.1.5 Repeat steps 9.1.1-9.1.1.4 two more times. The
10.5.1 Theexpectedstandarddeviationofreproducibilityof
average of the three tests represents the maximum dry func-
the average of a set of measured results between multiple
tional volume that the utility vacuum is capable of collecting.
laboratories, S has been found to be the respective values
R
10. Precision and Bias
listed in Table 1.
10.1 Precision—Theseprecisionstatementsarebasedonan
10.5.2 The95%reproducibilitylimitwithinalaboratory,R,
interlaboratory test involving six (6) laboratories and four (4)
has been found to be the respective values listed in Table 1,
units. The range of maximum functional volume of the units
where R = 2.8(S ).
R
was from 4.8 to 14.6 gal.
10.5.3 With 95% confidence, it can be stated that the
10.2 The statistics have been calculated as recommended in
average of the measured results from a set of three test runs
Practice E691.
performed in one laboratory, as compared to a second labora-
10.3 The following statements regarding repeatability limit
tory, should be considered suspect if the difference between
and reproducibility limit are used as directed in Practice E177.
those two values is greater than the respective values of the
10.4 Repeatability (Single-Operator-and Laboratory;
reproducibility limit, R, listed in Table 1.
Multi-Day Testing)—The ability of a single analyst to repeat
10.5.4 If the absolute value of the difference between the
the test within a single laboratory.
averageofthemeasuredresultsfromthetwolaboratoriesisnot
10.4.1 The expected standard deviation of repeatability of
equal to or less than the respective reproducibility limit listed
themeasuredresultswithinalaboratorys hasbeenfoundtobe
r
in Table 1, the set of results from both laboratories shall be
the respective values listed in Table 1.
considered suspect.
10.4.2 The 95% repeatability limit within a laboratory, r,
10.6 Bias—Nojustifiablestatementcanbemadeonthebias
has been found to be the respective values listed on Table 1,
where r = 2.8 (S ). of the method to evaluate maximum dry volume of utility
r
10.4.3 With 95% confidence, it can be stated that within a vacuumcleaners.Sincethetruevalueofthepropertycannotbe
laboratory a set of measured results derived from testing a unit established by an acceptable referee method.
11. Keywords
Supporting data have been filed atASTM International Headquarters and may
be obtained by requesting Research Report RR:F11-1009. 11.1 dry volume; filtration; utility vacuum cleaner
F1326–02 (2006)
ANNEX
(Mandatory Information)
A1. DETERMINATION OF THE POPULATION MEAN HAVING 90 % CONFIDENCE INTERVAL
TABLE A1.1 Percentiles of the t Distribut
...
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