ASTM F1326-02(2011)

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

• Status: Historical
• Publication Date: 31-Oct-2011
• ICS: 97.080 - Cleaning appliances
• Technical Committee: F11 - Vacuum Cleaners
• Drafting Committee: F11.23 - Filtration

Relations

• Replaces: ASTM F1326-02(2006) - Standard Test Method for Measuring Maximum Dry Volume of Utility Vacuum Cleaners
• Effective Date: 01-Nov-2011

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F1326 − 02(Reapproved 2011) An American National Standard
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 6. Sampling
1.1 This test method is applicable to any vacuum cleaner 6.1 A minimum of three units of the same model vacuum
that is classified as a utility vac. cleaner selected at random in accordance with good statistical
practice shall constitute the population sample.
1.2 The values stated in inch-pound units are to be regarded
6.1.1 To determine the best estimate of maximum dry
asstandard.Thevaluesinparenthesesareforinformationonly.
volume for the population of the vacuum cleaner model being
1.3 This standard does not purport to address all of the
tested, the arithmetic mean of the maximum dry volume of the
safety concerns, if any, associated with its use. It is the
sample from the population shall be established by testing it to
responsibility of the user of this standard to establish appro-
a 90% confidence level within 65% of the mean value of the
priate safety and health practices and determine the applica-
maximum dry volume.
bility of regulatory limitations prior to use.
6.1.2 Annex A1 provides a procedural example for deter-
mining the 90% confidence level and when the sample size
2. Referenced Documents
shall be increased.
2.1 ASTM Standards:
NOTE 1—See AnnexA1 for a method for determining 90% confidence
E177Practice for Use of the Terms Precision and Bias in
level.
ASTM Test Methods
E691Practice for Conducting an Interlaboratory Study to
7. Conditioning
Determine the Precision of a Test Method
7.1 TestRoom—Thetestroomshouldbemaintainedat70°F
6 5°F (21°C 6 3°C) and 45 to 55% relative humidity.
3. Significance and Use
7.2 Condition the water in accordance with 7.1.
3.1 This test method describes a procedure to determine the
maximum functional dry volume that the utility vac is capable
8. Procedure
of collecting.
8.1 Dry Pick Up Capacity:
4. Apparatus
8.1.1 Calculatethevolumeingallonsofthedustdrumusing
the appropriate formulas, neglecting all projections into the
4.1 Temperature and humidity indicators, to provide tem-
drum.
perature measurements accurate to within 61°F (6 ⁄2 °C) and
8.1.2 Calculate all projections into the drum using the
humidity measurements accurate to within 62% relative
appropriate formulas in gallons.
humidity.
8.1.3 Subtract the total projection volumes from the dirt
4.2 Weighing Scale, the scale shall be accurate to 4 oz (114
drum volume to arrive at the maximum dry volume. Round
g) and have a weighing capacity of at least 120 lbs (54.4 kg).
down to the nearest ⁄4 gal (0.936 L).
8.1.4 Record the maximum functional volume in gallons
5. Materials
(litres) within ⁄4 gal (0.936 L).
5.1 Water.
9. Procedure
ThistestmethodisunderthejurisdictionofASTMCommitteeF11onVacuum
9.1 Dry Pick Up Capacity (Alternative Method):
Cleaners and is the direct responsibility of Subcommittee F11.23 on Filtration.
9.1.1 An alternative method is allowed when the shape of
Current edition approved Nov. 1, 2011. Published March 2012. Originally
the vacuum cleaner is irregular, and the calculations of Section
approved in 1991. Last previous edition approved in 2006 as F1326–02 (2006).
DOI: 10.1520/F1326-02R11.
8 become complex.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
9.1.1.1 Blocktheinletofthedustdrumandfillitwithwater.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
9.1.1.2 Line the projections into the drum with an appropri-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. ate water-proof material and submerse into the dust drum.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1326 − 02 (2011)
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
9.1.1.3 Allow the excess water to flow out of the dust drum 10.4.4 If the absolute value of the difference of any pair of
andthenmeasurethevolumeofthewaterremaininginthedust
measuredresultsfromthreetestrunsperformedwithinasingle
drum. Round down to the nearest ⁄4 gal.
laboratory is not equal to or less than the respective repeatabil-
9.1.1.4 Record the maximum functional volume in gallons
ity limit listed in Table 1, that set of test results shall be
(litres) within ⁄4 gal (0.936 L).
considered suspect.
9.1.1.5 Repeat steps 9.1.1 – 9.1.1.4 two more times. The
10.5 Reproducibility (Multi-day Testing and Single Opera-
average of the three tests represents the maximum dry func-
torwithinMultipleLaboratories)—Theabilitytorepeatthetest
tional volume that the utility vacuum is capable of collecting.
within laboratories.
10. Precision and Bias
10.5.1 Theexpectedstandarddeviationofreproducibilityof
10.1 Precision—These precision statements are based on an
the average of a set of measured results between multiple
interlaboratory test involving six (6) laboratories and four (4)
laboratories, S has been found to be the respective values
R
units. The range of maximum functional volume of the units
listed in Table 1.
was from 4.8 to 14.6 gal.
10.5.2 The95%reproducibilitylimitwithinalaboratory,R,
10.2 The statistics have been calculated as recommended in
has been found to be the respective values listed in Table 1,
Practice E691.
where R = 2.8(S ).
R
10.5.3 With 95% confidence, it can be stated that the
10.3 The following statements regarding repeatability limit
average of the measured results from a set of three test runs
and reproducibility limit are used as directed in Practice E177.
performed in one laboratory, as compared to a second
10.4 Repeatability (Single-Operator-and Laboratory;
laboratory, should be considered suspect if the difference
Multi-Day Testing)—The ability of a single analyst to repeat
between those two values is greater than the respective values
the test within a single laboratory.
of the reproducibility limit, R, listed in Table 1.
10.4.1 The expected standard deviation of repeatability of
themeasuredresultswithinalaboratorys hasbeenfoundtobe 10.5.4 If the absolute value of the difference between the
r
averageofthemeasuredresultsfromthetwolaboratoriesisnot
the respective values listed in Table 1.
10.4.2 The 95% repeatability limit within a laboratory, r, equal to or less than the respective reproducibility limit listed
has been found to be the respective values listed on Table 1, in Table 1, the set of results from both laboratories shall be
where r = 2.8 (S ).
considered suspect.
r
10.4.3 With 95% confidence, it can be stated that within a
10.6 Bias—Nojustifiablestatementcanbemadeonthebias
laboratory a set of measured results derived from testing a unit
of the method to evaluate maximum dry volume of utility
shouldbeconsideredsuspectifthedifferencebetweenanytwo
vacuumcleaners.Sincethetruevalueofthepropertycannotbe
of the three values is greater than the respective value of the
established by an acceptable referee method.
repeatability limit r, listed in Table 1.
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 (2011)
ANNEX
(Mandatory Information)
A1. DETERMINATION OF THE POPULATION MEAN HAVING 90 % CONFIDENCE INTERVAL
TABLE A1.1 Percentiles of the t Distribution
A1.1 Theory
df t
0.95
A1.1.1 The mos
...