ASTM_D_4336_-_18.pdf

Designation:D433618Standard Practice forDetermination of the Output Per Stroke of a MechanicalPump Dispenser1This standard is issued under the fixed designation D4336;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice covers the measurement of the meanquantity-by-weight of liquids dispensed from a mechanicalpump dispenser(spray or flow type)with a consumer-typeproduct on each actuation.1.2 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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.3 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D3890 Test Method for Number of Strokes to Prime aMechanical Pump Dispenser3.Significance and Use3.1 This practice can be used to compare the output perstroke of different pump dispensers for the purpose of estab-lishing dosage and use instructions for products of consumerusage.3.2 This practice is suitable for establishing specificationsfor both the pump dispenser and the final package.4.Sampling4.1 Select an appropriate number of pump dispensers atrandom for the precision and accuracy desired.Anumber of tentest specimens are recommended,but a minimum of three isacceptable.5.Test Specimens5.1 Test specimens shall be clean pump dispensers with diptubes assembled in the same manner as in production.6.Conditioning6.1 If possible,condition the test specimens at 23 6 3 C(73 6 5.4F)for not less than 4 h.If the test specimens are notconditioned at the recommended temperature,this should benoted in the test report discussed in 12.1.6.2 If the test specimens have been newly-made at the timeof the test,it is recommended that the test specimens age at 236 3C(73 6 5.4F)for 24 h before beginning the test.If thetest specimens are not allowed to age for 24 h,then it shouldbe noted in the test report as discussed in 12.1.GRAVIMETRIC METHOD#1This method is to be used when taringof the package weight is wanted or possible.7.Apparatus7.1 Balance,with direct reading to 0.01 g.Top-loading oranalytical style is recommended.NOTE1For applications requiring greater accuracy,a top-loading oranalytical style balance with direct reading to 0.001 g is recommended.7.2 Container,an appropriate container for the pump dis-penser under test;however,the actual container to be used onthe final package is recommended.8.Procedure8.1 Fill the container with product to the level to be seen inthe final package and secure the mechanical pump dispenser tothe container.8.2 If the pump dispenser is equipped with an overcap orlocking feature,remove or release to permit the pump dis-penser to be in the operable mode.1This practice is under the jurisdiction of ASTM Committee F02 on PrimaryBarrier Packaging and is the direct responsibility of Subcommittee F02.30 onMechanical Dispensers.Current edition approved May 1,2018.Published June 2018.Originallyapproved in 1984.Last previous edition approved in 2010 as D4336 05(2010).DOI:10.1520/D4336-18.2For 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 the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 8.3 If the pump dispenser has a variable dosage feature,make an appropriate adjustment to the desired dosage at thistime.8.4 Prime the pump dispenser in accordance with TestMethod D3890 by actuating it until a full discharge of productoccurs.8.5 Place the package on the balance and tare the weight tozero.8.6 Actuate the pump dispenser ten times by hand at the rateof 60 to 120(90 6 15 preferred)strokes per minute.NOTE2Care must be taken to use the full stroke on each actuation.8.7 Reweigh the package and record the value to the nearest0.01 or 0.001 g as appropriate for the balance used and recordthe weight on the data sheet.8.8 Repeat 8.1 8.7 for each pump dispenser selected fortest