1、Designation:D4041/D4041M05(Reapproved 2010)1Standard Practice forDetermining Spray Patterns of Mechanical PumpDispensers1This standard is issued under the fixed designation D4041/D4041M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision
2、,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1NOTEUnits information was corrected editorially in March 2011.1.Scope1.1 This practice covers the determination of spray
3、 patternsfrom pump dispensers.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may resu
4、lt in non-conformancewith the standard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limi
5、tations prior to use.2.Referenced Documents2.1 ASTM Standards:2D996 Terminology of Packaging and Distribution Environ-ments3.Terminology3.1 See Terminology D996 for applicable definitions.4.Significance and Use4.1 This practice can be used to compare spray patterns ofdifferent pump dispensers and of
6、 different products.4.2 Spray patterns from pump dispensers will vary greatlywith the design of the actuator and the nature of the liquid.Liquids with differing physical properties will not necessarilyyield the same spray pattern when sprayed from the sameactuator.Likewise,actuators of different des
7、igns will yieldspray patterns distinct from each other when the same liquid isused.5.Apparatus5.1 Target Support Stand,approximately 250 mm wide withthe vertical component approximately 400 mm high.The standshall be attached securely at right angles to the horizontalcomponent.The component shall be
8、approximately 700 mmlong and free of air turbulence,that will provide for stationarypositioning of the paper target.An optional paper target ispositioned along the length of the horizontal component torecord fallout.5.2 Container Support Stand,that will position the pumpdispenser and container a spe
9、cific distance and center them tothe target.(Alternatively,the pump dispenser and containermay be held firmly by hand on a flat,horizontal surface.)5.3 Measuring Rule.5.4 Alcohol-Sensitive Paper,cut to the desired length andwidth.5.5 Plain White Paper,cut to the desired length and width.5.6 Dyes of
10、Oil Base for Petroleum-Based Products orWater Base for Water-Based ProductsThese dyes,whendissolved in the liquid,shall be in sufficient concentrate to givea strong color when sprayed onto the target paper.NOTE1Dyes must be compatible and completely soluble in the testliquid.The dyed liquid shall be
11、 filtered prior to use to remove any solidparticles.6.Sampling6.1 Select an appropriate number of dry,unused dispensersat random for the precision and bias desired.7.Conditioning7.1 If possible,condition the test specimens at 23 6 3C 736 5.4F for not less than 4 h.If the test specimens are notcondit
12、ioned at the recommended temperature,this should benoted in the test report discussed in 10.1.1This practice is under the jurisdiction of ASTM Committee D10 on Packagingand is the direct responsibility of Subcommittee D10.33 on Mechanical Dispensers.Current edition approved Oct.1,2010.Published Marc
13、h 2011.Originallyapproved in 1981.Last previous edition approved in 2005 as D4041 05.DOI:10.1520/D4041_D4041M-05R10E01.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to th
14、e standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 7.2 Test pumps should be tested no sooner than 24 h afterassembly when possible.If the pumps are not conditioned atthe recommended time,t
15、his should be noted in the test reportdiscussed in 10.1.8.Procedure8.1 Attach the pump to the container of the test liquid.NOTE2If the plain white paper is selected as the target,then the liquidproduct must contain a dye.If the alcohol-sensitive paper is selected as thetarget,then the liquid product
16、 must contain alcohol in order to stain thisspecial paper.This method is acceptable for all products.NOTE3Liquid products with water should not be tested on alcohol-sensitive paper,since the pattern will begin to change in size and shapeimmediately due to evaporation.With no alcohol to permanently stain thealcohol-sensitive paper,the results may be unreliable.This method isacceptable for products containing alcohol.8.2 If the pump dispenser is equipped with an overcap orlocking feature,remove or
