Standard Test Method for Determining Spray Patterns of Manually Operated 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 test method covers the determination of spray patterns from pump dispensers.
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.

General Information

Status
Historical
Publication Date
30-Sep-2005
Technical Committee
Drafting Committee
Current Stage
Ref Project

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ASTM D4041-05 - Standard Test Method for Determining Spray Patterns of Manually Operated Pump Dispensers
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D4041–05
Standard Practice for
Determining Spray Patterns of Mechanical Pump
1
Dispensers
This standard is issued under the fixed designation D4041; 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.
1. Scope long and free of air turbulence, that will provide for stationary
positioning of the paper target. An optional paper target is
1.1 This practice covers the determination of spray patterns
positioned along the length of the horizontal component to
from pump dispensers.
record fallout.
1.2 This standard does not purport to address all of the
5.2 Container Support Stand, that will position the pump
safety concerns, if any, associated with its use. It is the
dispenser and container a specific distance and center them to
responsibility of the user of this standard to establish appro-
the target. (Alternatively, the pump dispenser and container
priate safety and health practices and determine the applica-
may be held firmly by hand on a flat, horizontal surface.)
bility of regulatory limitations prior to use.
5.3 Measuring Rule.
2. Referenced Documents 5.4 Alcohol-Sensitive Paper, cut to the desired length and
2
width.
2.1 ASTM Standards:
5.5 Plain White Paper, cut to the desired length and width.
D996 Terminology of Packaging and Distribution Environ-
5.6 Dyes of Oil Base for Petroleum-Based Products or
ments
Water Base for Water-Based Products—These dyes, when
3. Terminology
dissolved in the liquid, shall be in sufficient concentrate to give
a strong color when sprayed onto the target paper.
3.1 See Terminology D996 for applicable definitions.
NOTE 1—Dyes must be compatible and completely soluble in the test
4. Significance and Use
liquid. The dyed liquid shall be filtered prior to use to remove any solid
4.1 This practice can be used to compare spray patterns of
particles.
different pump dispensers and of different products.
6. Sampling
4.2 Spray patterns from pump dispensers will vary greatly
with the design of the actuator and the nature of the liquid. 6.1 Select an appropriate number of dry, unused dispensers
at random for the precision and bias desired.
Liquids with differing physical properties will not necessarily
yield the same spray pattern when sprayed from the same
7. Conditioning
actuator. Likewise, actuators of different designs will yield
7.1 If possible, condition the test specimens at 23 6 3°C (73
spray patterns distinct from each other when the same liquid is
6 5.4°F) for not less than 4 h. If the test specimens are not
used.
conditioned at the recommended temperature, this should be
5. Apparatus
noted in the test report discussed in 10.1.
7.2 Test pumps should be tested no sooner than 24 h after
5.1 TargetSupportStand, approximately 250 mm wide with
the vertical component approximately 400 mm high. The stand assembly when possible. If the pumps are not conditioned at
the recommended time, this should be noted in the test report
shall be attached securely at right angles to the horizontal
component. The component shall be approximately 700 mm discussed in 10.1.
8. Procedure
1
This practice is under the jurisdiction of ASTM Committee D10 on Packaging
8.1 Attach the pump to the container of the test liquid.
and is the direct responsibility of Subcommittee D10.33 on Mechanical Dispensers.
Current edition approved Oct. 1, 2005. Published November 2005. Originally
NOTE 2—If the plain white paper is selected as the target, then the
approved in 1981. Last previous edition approved in 2003 as D4041 – 97 (2003).
liquidproductmustcontainadye.Ifthealcohol-sensitivepaperisselected
DOI: 10.1520/D4041-05.
as the target, then the liquid product must contain alcohol in order to stain
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
this special paper. This method is acceptable for all products.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
NOTE 3—Liquid products with water should not be tested on alcohol-
Standards volume information, refer to the standard’s Document Summary page on
sensitive paper, since the pattern will begin to change in size and shape
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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D4041–05
immediately due to evaporation. With no alcohol to permanently stain the
9.3 Ifa“pull,”asingleconcentratedgroupofsprayparticles
alcohol-sensitive paper, the results may be unreliable. This method is
radiating from the spray pattern’s center to beyond the perim-
acceptable for products cont
...

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