1、Designation: D 6535 05Standard Test Method forDetermining the Dip Tube Length of a Mechanical PumpDispenser1This standard is issued under the fixed designation D 6535; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of las
2、t revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method covers the determination technique fora dip tube of a mechanical pump dispenser.1.2 The values stated i
3、n both inch pound and SI units are tobe regarded separately as 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 determi
4、ne the applica-bility of regulatory limitations prior to use.2. Significance and Use2.1 This test method is to be used to determine the length ofa dip tube of a mechanical pump dispenser that extends to thebottom-corner of a container.2.2 This test method is to be used to determine the length ofa di
5、p tube of a mechanical pump dispenser that extends to thebottom-center of a container.3. Apparatus3.1 Thin Metal Ruler, with minimum gradients of onemillimeter and/or116 in. along with a zero index at the end ofthe ruler.3.2 Calipers.4. ProcedureTEST METHOD “A”DIP TUBE LENGTHDETERMINATION TO THE BOT
6、TOM-CORNER OFTHE CONTAINERNOTE 1This test method is used when the dip tube of a mechanicalpump dispenser must extend to the bottom-corner of a container.4.1 Place the zero-index end of the ruler into the containeras shown in Fig. 1.4.2 Turn the ruler so that the side of the ruler reaches as farinto
7、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 of the container.4.3 Adjust the ruler so that it is positioned through thecenter axis of the container opening.4.4 Measure the dip tube le
8、ngth to within 1 mm or116 in. Ifthe measurement value is between the whole millimetre or116thgradient, use the larger value (that is, if measurement is 118.5mm, use 119 mm; or if measurement is 4-2132 in., use 4-1116in).4.5 If the dip tube measurement is in millimetres, subtract 1mm from the measure
9、d value. If the dip tube measurement is ininches, subtract116 in. from the measured value.4.6 Record the net value (original value minus 1 mm or116in.).4.7 To verify the new dip tube specification, prepare asample mechanical pump dispenser with the newly-specifieddip tube length.4.8 Secure the mecha
10、nical pump dispenser to the container.1This test method is under the jurisdiction of ASTM Committee D10 onPackaging and is the direct responsibility of Subcommittee D10.33 on MechanicalDispensers.Current edition approved Oct. 1, 2005. Published November 2005. Originallyapproved in 2000. Last previou
11、s edition approved in 2000 as D 6535 00.FIG. 1 To Bottom-Corner1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4.9 Verify that the end of the dip tube is not closed-off bythe bottom or side of the container.4.10 To specify the expose
12、d dip tube length, measure thelength of the exposed body as per dimension “Y” of Fig. 2 andsubtract from the overall length as specified in 4.6.NOTE 3If the container is not transparent, a section of the bottom ofthe container may need to be removed so that the position of the end of thedip tube may
13、 be viewed.TEST METHOD “B”DIP TUBE LENGTHDETERMINATION TO THE BOTTOM-CENTER OFTHE CONTAINERNOTE 4This test method is used when the dip tube of a mechanicalpump dispenser must extend to the bottom-center of a container.4.11 Place the zero-index end of the ruler into the containeras shown in Fig. 3.4.
14、12 Adjust the ruler so that it is positioned through thecenter axis of the container opening with the end of the ruler atthe bottom of the container.4.13 Measure the dip tube length to within 1 mm or116 in.through the plane generated by the top of the containeropening. If the measurement value is be
15、tween the wholemillimeter or116thgradient, use the smaller value (that is, ifmeasurement is 118.5 mm, use 118 mm; or if measurement is4-2132 in., use 4-1016 in.).4.14 If the dip tube measurement is in millimetres, subtract1 mm from the measured value. If the dip tube measurement isin inches, subtrac
16、t116 in. from the measured value.4.15 Record the net value (original value minus 1 mm or116in.).4.16 To verify the new dip tube specification, prepare asample mechanical pump dispenser with the newly-specifieddip tube length.4.17 Secure the mechanical pump dispenser to the con-tainer.4.18 Verify tha
17、t the end of the dip tube is not closed-off bythe bottom or side of the container.4.19 To specify the exposed dip tube length, measure thelength of the exposed body as per dimension “Y” of Fig. 2 andsubtract from the overall length as specified in 4.6.NOTE 5If the container is not transparent, a sec
18、tion of the bottom ofthe container may need to be removed so that the position of the end of thedip tube 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 Method used.5.1.4 Type of bottle.6. Precision and Bi
19、as6.1 PrecisionThe precision of this test method is highlydependent on the size of the container. An examination of theresults of dip tube length determination from 3 technicians inone lab found that for ten dip tubes measured under TestMethod “A”, the range of dip tube length specified was from 411
20、6 to 4216 in. long.6.2 BiasThis test method has no bias because an acceptedreference or referee value is not available.7. Keywords7.1 dip tube determination; dispenser; mechanical pumpdispenserFIG. 2 Overall Dip Tube Length “X” Versus Exposed Dip TubeLength “Z”FIG. 3 To Bottom-CenterD6535052ASTM Int
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23、ould 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 St
24、andards, 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. 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).D6535053
