ASTM D4041-97(2003)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:D4041–97 (Reapproved 2003)
Standard Practice for
Determining Spray Patterns of Manually Operated Pump
Dispensers
This standard is issued under the fixed designation D 4041; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope shall be attached securely at right angles to the horizontal
component. The component shall be approximately 700 mm
1.1 This practice covers the determination of spray patterns
long and free of air turbulence, that will provide for stationary
from pump dispensers.
positioning of the paper target. An optional paper target is
1.2 This standard does not purport to address all of the
positioned along the length of the horizontal component to
safety concerns, if any, associated with its use. It is the
record fallout.
responsibility of the user of this standard to establish appro-
5.2 Container Support Stand, that will position the pump
priate safety and health practices and determine the applica-
dispenser and container a specific distance and center them to
bility of regulatory limitations prior to use.
the target. (Alternatively, the pump dispenser and container
2. Referenced Documents may be held firmly by hand on a flat, horizontal surface.)
5.3 Measuring Rule.
2.1 ASTM Standards:
5.4 Alcohol-Sensitive Paper, cut to the desired length and
D 996 Terminology of Packaging and Distribution Environ-
width.
ments
5.5 Plain White Paper, cut to the desired length and width.
3. Terminology
5.6 Dyes of Oil Base for Petroleum-Based Products or
Water Base for Water-Based Products—These dyes, when
3.1 See Terminology D 996 for applicable definitions.
dissolved in the liquid, shall be in sufficient concentrate to give
4. Significance and Use
a strong color when sprayed onto the target paper.
4.1 This practice can be used to compare spray patterns of
NOTE 1—Dyes must be compatible and completely soluble in the test
different pump dispensers and of different products.
liquid. The dyed liquid shall be filtered prior to use to remove any solid
4.2 Spray patterns from pump dispensers will vary greatly particles.
with the design of the actuator and the nature of the liquid.
6. Sampling
Liquids with differing physical properties will not necessarily
yield the same spray pattern when sprayed from the same 6.1 Select an appropriate number of dry, unused dispensers
at random for the precision and bias desired.
actuator. Likewise, actuators of different designs will yield
spray patterns distinct from each other when the same liquid is
7. Conditioning
used.
7.1 Packages, dispensers, and liquids should be conditioned
4.3 The evaluation of the spray pattern must then be made
to standard laboratory temperatures prior to spray pattern
with the specific actuator and liquid involved and not on
evaluation.
actuators or liquids assumed to be standard.
8. Procedure
5. Apparatus
8.1 Attach the pump to the container of the test liquid.
5.1 TargetSupportStand, approximately 250 mm wide with
the vertical component approximately 400 mm high. The stand
NOTE 2—If the plain white paper is selected as the target, then the
liquidproductmustcontainadye.Ifthealcohol-sensitivepaperisselected
as the target, then the liquid product must contain alcohol in order to stain
This practice is under the jurisdiction of ASTM Committee D10 on Packaging
this special paper. This method is acceptable for all products.
and is the direct responsibility of Subcommittee D10.33 on Mechanical Dispensers.
NOTE 3—Liquid products with water should not be tested on alcohol-
Current edition approved Sept. 10, 1997. Published March 1998. Originally
sensitive paper, since the pattern will begin to change in size and shape
published as D 4041 – 81. Last previous edition D 4041 – 89.
2 immediately due to evaporation. With no alcohol to permanently stain the
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
alcohol-sensitive paper, the results may be unreliable. This method is
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
acceptable for products containing alcohol.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
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D4041–97 (2003)
8.2 If the pump dispenser is equipped with an overcap or 9.3 If
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