ASTM D4041/D4041M-05(2010)e1
(Test Method)Standard Practice for Determining Spray Patterns of Mechanical Pump Dispensers
Standard Practice for Determining Spray Patterns of Mechanical Pump Dispensers
SIGNIFICANCE AND USE
This practice can be used to compare spray patterns of different pump dispensers and of different products.
Spray patterns from pump dispensers will vary greatly with the design of the actuator and the nature of the liquid. Liquids with differing physical properties will not necessarily yield the same spray pattern when sprayed from the same actuator. Likewise, actuators of different designs will yield spray patterns distinct from each other when the same liquid is used.
SCOPE
1.1 This practice covers the determination of spray patterns from pump dispensers.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
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.
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Designation: D4041/D4041M − 05 (Reapproved 2010)
Standard Practice for
Determining Spray Patterns of Mechanical Pump
Dispensers
This standard is issued under the fixed designation D4041/D4041M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
ε NOTE—Units information was corrected editorially in March 2011.
1. Scope actuator. Likewise, actuators of different designs will yield
spray patterns distinct from each other when the same liquid is
1.1 This practice covers the determination of spray patterns
used.
from pump dispensers.
1.2 The values stated in either SI units or inch-pound units
5. Apparatus
are to be regarded separately as standard. The values stated in
5.1 TargetSupportStand, approximately 250 mm wide with
each system may not be exact equivalents; therefore, each
the vertical component approximately 400 mm high. The stand
system shall be used independently of the other. Combining
shall be attached securely at right angles to the horizontal
values from the two systems may result in non-conformance
component. The component shall be approximately 700 mm
with the standard.
long and free of air turbulence, that will provide for stationary
1.3 This standard does not purport to address all of the
positioning of the paper target. An optional paper target is
safety concerns, if any, associated with its use. It is the
positioned along the length of the horizontal component to
responsibility of the user of this standard to establish appro-
record fallout.
priate safety and health practices and determine the applica-
5.2 Container Support Stand, that will position the pump
bility of regulatory limitations prior to use.
dispenser and container a specific distance and center them to
2. Referenced Documents
the target. (Alternatively, the pump dispenser and container
may be held firmly by hand on a flat, horizontal surface.)
2.1 ASTM Standards:
D996 Terminology of Packaging and Distribution Environ-
5.3 Measuring Rule.
ments
5.4 Alcohol-Sensitive Paper, cut to the desired length and
width.
3. Terminology
5.5 Plain White Paper, cut to the desired length and width.
3.1 See Terminology D996 for applicable definitions.
5.6 Dyes of Oil Base for Petroleum-Based Products or
4. Significance and Use
Water Base for Water-Based Products—These dyes, when
4.1 This practice can be used to compare spray patterns of dissolved in the liquid, shall be in sufficient concentrate to give
different pump dispensers and of different products.
a strong color when sprayed onto the target paper.
4.2 Spray patterns from pump dispensers will vary greatly
NOTE 1—Dyes must be compatible and completely soluble in the test
with the design of the actuator and the nature of the liquid. liquid. The dyed liquid shall be filtered prior to use to remove any solid
particles.
Liquids with differing physical properties will not necessarily
yield the same spray pattern when sprayed from the same
6. Sampling
6.1 Select an appropriate number of dry, unused dispensers
This practice is under the jurisdiction of ASTM Committee F02 on Flexible
at random for the precision and bias desired.
Barrier Packaging and is the direct responsibility of Subcommittee F02.30 on
Mechanical Pump Dispensers.
Current edition approved Oct. 1, 2010. Published March 2011. Originally
7. Conditioning
approved in 1981. Last previous edition approved in 2005 as D4041 – 05. DOI:
10.1520/D4041_D4041M-05R10E01.
7.1 If possible, condition the test specimens at 23 6 3°C [73
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6 5.4°F] for not less than 4 h. If the test specimens are not
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
conditioned at the recommended temperature, this should be
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. noted in the test report discussed in 10.1.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D4041/D4041M − 05 (2010)
7.2 Test pumps should be tested no sooner than 24 h after round, so the aspect ratio of the X-axis by the Y-axis will be
assembly when possible. If the pumps are not conditioned at helpful in documenting non-round shapes. An average value
the recommended time, this should be noted in the test report for the two measurements may also be reported.
discussed in 10.1.
9.2 If a void is found on the perimeter of the spray pattern,
and this void affects the true measurement of the diameter,
8. Procedure
estimate the project of the spray pattern’s arc through the
8.1 Attach the pump to the container of the test liquid.
measurement axis. This defect should be documented in the
report.
NOTE2—Iftheplainwhitepaperisselectedasthetarget,thentheliquid
productmustcontaina
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