1、Designation:D6536/D6536M00(Reapproved 2010)1Standard Test Method forMeasuring the Dip Tube Length of a Mechanical PumpDispenser1This standard is issued under the fixed designation D6536/D6536M;the number immediately following the designation indicates theyear of original adoption or,in the case of r
2、evision,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 editorially revised in December 2010.1.Scope1.1 This test method covers the measurement
3、 technique fora dip tube of a mechanical pump dispenser.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 fro
4、m the two systems may result 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
5、-bility of regulatory limitations prior to use.2.Significance and Use2.1 This test method is to be used to measure the length ofa specified dip tube from the bottom of the sealing surface tothe end of the dip tube in a mechanical pump dispenser.2.2 This test method is to be used to measure the expos
6、edlength of a specified dip tube of a mechanical pump dispenser.3.Apparatus3.1 Thin Metal Ruler,with minimum gradients of 1 mm or116in.,or both,along with a zero index at the end of the ruler.3.2 Calipers.4.ProcedureTEST METHOD“A”MEASUREMENT OFOVERALL DIP TUBE LENGTHNOTE1This test method is used whe
7、n the exposed sealing surface ofthe mechanical pump dispenser is large enough to measure from.4.1 While holding the mechanical pump dispenser with itsaxis in a horizontal plane,place the zero index end of the ruleragainst the bottom of the seal surface.Fig.1dimension“X.”4.2 If needed,straighten the
8、dip tube out so that it is parallelwith the length of the ruler.4.3 Measure the overall length of the dip tube to within afull millimetre or116in.length.4.4 Record the length measured in 5.1.TEST METHOD“B”MEASUREMENT OF EXPOSEDDIP TUBE LENGTHNOTE2This test method is used in all applications.4.5 Whil
9、e holding the mechanical pump dispenser with itsaxis in a horizontal plane,place the zero index end of the ruleragainst the bottom end of the body.Fig.1dimension“Z.”4.6 If needed straighten the dip tube out so that it is parallelwith the length of the ruler.4.7 Measure the exposed length of the dip
10、tube to within afull millimetre or116in.length.4.8 Record the length measured in 5.1.5.Report5.1 Report the following information:5.1.1 Type of mechanical pump dispenser,5.1.2 Dip tube length measured,and5.1.3 Method used.6.Precision and Bias6.1 PrecisionThe precision of this test method is within a
11、range of plus or minus 1 mm or116in.from the specifiedlength depending on the unit of measure used:millimetres orinches.An examination of the results of dip tube lengthmeasurements from _ technicians in one lab found that tenpumps measured under Test Method“A”had a range in lengthspecified from _ in
12、.long.Data is currently being gathered.6.2 BiasThis test method has no bias because an acceptedreference or referee value is not available.1This test method is under the jurisdiction of ASTM Committee D10 onPackaging and is the direct responsibility of Subcommittee D10.33 on MechanicalDispensers.Cur
13、rent edition approved Oct.1,2010.Published December 2010.Originallyapproved in 2000.Last previous edition approved in 2005 as D6536 05.DOI:10.1520/D6536_D6536M-00R10E01.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 7.Keywords7.1 dip tub
14、e length;dip tube measurement;mechanicalpump dispenserASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard.Users of this standard are expressly advised that determination of the validity of any such patent ri
15、ghts,and the riskof infringement of such rights,are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised,either reapproved or withdrawn.Your comments are invited either for re
16、vision of this standard or for additional standardsand should be addressed to ASTM International Headquarters.Your comments will receive careful consideration at a meeting of theresponsible technical committee,which you may attend.If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards,at the address shown below.This standard is copyrighted by ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428
