1、Designation: D6536/D6536M 00 (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
2、 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.1NOTEUnits information was editorially revised in December 2010.1. Scope1.1 This test method covers the
3、measurement 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. Comb
4、iningvalues from 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 det
5、ermine the applica-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 t
6、o measure the exposedlength of a specified dip tube of a mechanical pump dispenser.3. Apparatus3.1 Thin Metal Ruler, with minimum gradients of 1 mm or116 in., or both, along with a zero index at the end of the ruler.3.2 Calipers.4. ProcedureTEST METHOD “A”MEASUREMENT OFOVERALL DIP TUBE LENGTHNOTE 1T
7、his test method is used when 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
8、”.4.2 If needed, straighten the 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 or116 in. length.4.4 Record the length measured in 5.1.TEST METHOD “B”MEASUREMENT OF EXPOSEDDIP TUBE LENGTHNOTE 2This test method
9、is used in all applications.4.5 While 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.
10、7 Measure the exposed length of the dip tube to within afull millimetre or116 in. 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 Precision
11、The precision of this test method is within arange of plus or minus 1 mm or116 in. 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
12、Method “A” had a range in lengthspecified from _ in. long. Data is currently being gathered.6.2 BiasThis test method has no bias because an acceptedreference or referee value is not available.7. Keywords7.1 dip tube length; dip tube measurement; mechanicalpump dispenser1This test method is under the
13、 jurisdiction of ASTM Committee D10 onPackaging and is the direct responsibility of Subcommittee D10.33 on MechanicalDispensers.Current 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-00R
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17、tend. 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 19428-2959,United States.
18、 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 ASTM website (www.astm.org/COPYRIGHT/).FIG. 1 Overall Dip Tube Length “X” Versus Exposed Dip TubeLength “Z”D6536/D6536M 00 (2010)12
