1、Designation: D6535/D6535M 05 (Reapproved 2010)1D6535/D6535M 18Standard Test Method Practice forDetermining the Dip Tube Length of a Mechanical PumpDispenser1This standard is issued under the fixed designation D6535/D6535M; the number immediately following the designation indicates theyear of origina
2、l adoption or, in the case of revision, 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.1 NOTEUnits information was editorially revised in December 2010.1. Scope1.1 T
3、his test method practice covers the determination technique for a dip tube of a mechanical pump dispenser.1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in eachsystem may not be exact equivalents; therefore, each system shall
4、 be used independently of the other. Combining values from thetwo systems may result in non-conformance with the standard.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appro
5、priate safety safety, health, and healthenvironmental practices and determine theapplicability of regulatory limitations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for
6、 the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Significance and Use2.1 This test method practice is to be used to determine the length of a dip tube of a mechanical pump dispenser that exten
7、dsto the bottom-corner of a container.2.2 This test method practice is to be used to determine the length of a dip tube of a mechanical pump dispenser that extendsto the bottom-center of a container.3. Apparatus3.1 Thin Metal Ruler, with minimum gradients of one millimeter and/or 116 in. along with
8、a zero index at the end of the ruler.3.2 Calipers.4. ProcedureTEST METHOD PRACTICE “A”DIP TUBE LENGTH DETERMINATION TO THE BOTTOM-CORNER OF THECONTAINERNOTE 1This test method practice is used when the dip tube of a mechanical pump dispenser must extend to the bottom-corner of a container.4.1 Place t
9、he zero-index end of the ruler into the container as shown in Fig. 1.4.2 Turn the ruler so that the side of the ruler reaches as far into the bottom-corner of the container as possible.NOTE 2If the cross-sectional area of the container is not round, position the ruler into the farthest bottom-corner
10、 of the container.4.3 Adjust the ruler so that it is positioned through the center axis of the container opening.4.4 Measure the dip tube length to within 1 mm or 116 in. If the measurement value is between the whole millimetre or 116thgradient, use the larger value (that is, if measurement is 118.5
11、 mm, use 119 mm; or if measurement is 4-2132 in., use 4-1116 in).1 This test method practice is under the jurisdiction ofASTM Committee F02 on FlexiblePrimary Barrier Packaging and is the direct responsibility of Subcommittee F02.30on Mechanical Pump Dispensers.Current edition approved Oct. 1, 2010M
12、ay 1, 2018. Published December 2010June 2018. Originally approved in 2000. Last previous edition approved in 20052010 asD6535 05.D6535/D6535M 05(2010)1. DOI: 10.1520/D6535_D6535M-05R10E01.10.1520/D6535_D6535M-18.This document is not an ASTM standard and is intended only to provide the user of an AST
13、M standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published
14、by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14.5 If the dip tube measurement is in millimetres, subtract 1 mm from the measured value. If the dip tube measurement is ininches, subtr
15、act 116 in. from the measured value.4.6 Record the net value (original value minus 1 mm or 116 in.).4.7 To verify the new dip tube specification, prepare a sample mechanical pump dispenser with the newly-specified dip tubelength.4.8 Secure the mechanical pump dispenser to the container.4.9 Verify th
16、at the end of the dip tube is not closed-off by the bottom or side of the container.4.10 To specify the exposed dip tube length, measure the length of the exposed body as per dimension “Y” of Fig. 2 and subtractfrom the overall length as specified in 4.6.NOTE 3If the container is not transparent, a
17、section of the bottom of the container may need to be removed so that the position of the end of the diptube may be viewed.TEST METHOD PRACTICE “B”DIP TUBE LENGTH DETERMINATION TO THE BOTTOM-CENTER OF THECONTAINERNOTE 4This test method practice is used when the dip tube of a mechanical pump dispense
18、r must extend to the bottom-center of a container.4.11 Place the zero-index end of the ruler into the container as shown in Fig. 3.FIG. 1 To Bottom-CornerFIG. 2 Overall Dip Tube Length “X” Versus Exposed Dip Tube Length “Z”D6535/D6535M 1824.12 Adjust the ruler so that it is positioned through the ce
19、nter axis of the container opening with the end of the ruler at thebottom of the container.4.13 Measure the dip tube length to within 1 mm or 116 in. through the plane generated by the top of the container opening.If the measurement value is between the whole millimeter or 116th gradient, use the sm
20、aller value (that is, if measurement is 118.5mm, use 118 mm; or if measurement is 4-2132 in., use 4-1016 in.).4.14 If the dip tube measurement is in millimetres, subtract 1 mm from the measured value. If the dip tube measurement is ininches, subtract 116 in. from the measured value.4.15 Record the n
21、et value (original value minus 1 mm or 116 in.).4.16 To verify the new dip tube specification, prepare a sample mechanical pump dispenser with the newly-specified dip tubelength.4.17 Secure the mechanical pump dispenser to the container.4.18 Verify that the end of the dip tube is not closed-off by t
22、he bottom or side of the container.4.19 To specify the exposed dip tube length, measure the length of the exposed body as per dimension “Y” of Fig. 2 and subtractfrom the overall length as specified in 4.6.NOTE 5If the container is not transparent, a section of the bottom of the container may need t
23、o be removed so that the position of the end of the diptube may be viewed.5. Report5.1 Report the following information:5.1.1 Type of mechanical pump dispenser,5.1.2 Dip tube length determined, and5.1.3 MethodPractice used.5.1.4 Type of bottle.6. Precision and Bias6.1 PrecisionThe precision of this
24、test method practice is highly dependent on the size of the container. An examination ofthe results of dip tube length determination from 3 technicians in one lab found that for ten dip tubes measured under Test MethodPractice “A”, the range of dip tube length specified was from 4 116 to 4 216 in. l
25、ong.6.2 BiasThis test method practice has no bias because an accepted reference or referee value is not available.FIG. 3 To Bottom-CenterD6535/D6535M 1837. Keywords7.1 dip tube determination; dispenser; mechanical pump dispenserASTM International takes no position respecting the validity of any pate
26、nt 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 rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision
27、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 revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your commen
28、ts 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
29、by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 184
