D 6536 - 00 - Rdy1mzy

Designation: D 6536 – 00
Standard Test Method for

Measuring the Dip Tube Length of a Mechanical Pump
Dispenser1
This standard is issued under the fixed designation D 6536; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This test method covers the measurement technique for
a dip tube of a mechanical pump dispenser.
1.2 The values stated in both inch-pound and SI units are to
be regarded separately as 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
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
2. Significance and Use
FIG. 1 Overall Dip Tube Length “X” Versus Exposed Dip Tube
2.1 This test method is to be used to measure the length of
Length “Z”
a specified dip tube from the bottom of the sealing surface to
the end of the dip tube in a mechanical pump dispenser.
2.2 This test method is to be used to measure the exposed TEST METHOD “B”—MEASUREMENT OF EXPOSED
length of a specified dip tube of a mechanical pump dispenser. DIP TUBE LENGTH
NOTE 2—This test method is used in all applications.
3. Apparatus
4.5 While holding the mechanical pump dispenser with its
3.1 Thin Metal Ruler, with minimum gradients of 1 mm or
1⁄16in., or both, along with a zero index at the end of the ruler.
axis in a horizontal plane, place the zero index end of the ruler
against the bottom end of the body. Fig. 1—dimension “Z”.
3.2 Calipers.
4.6 If needed straighten the dip tube out so that it is parallel
4. Procedure with the length of the ruler.
4.7 Measure the exposed length of the dip tube to within a
TEST METHOD “A”—MEASUREMENT OF full millimetre or 1⁄16 in. length.
OVERALL DIP TUBE LENGTH 4.8 Record the length measured in 5.1.
NOTE 1—This test method is used when the exposed sealing surface of 5. Report
the mechanical pump dispenser is large enough to measure from.
5.1 Report the following information:
4.1 While holding the mechanical pump dispenser with its
5.1.1 Type of mechanical pump dispenser,
axis in a horizontal plane, place the zero index end of the ruler
5.1.2 Dip tube length measured, and
against the bottom of the seal surface. Fig. 1—dimension “X”.
5.1.3 Method used.
4.2 If needed, straighten the dip tube out so that it is parallel
with the length of the ruler. 6. Precision and Bias
4.3 Measure the overall length of the dip tube to within a
6.1 Precision—The precision of this test method is within a
full millimetre or 1⁄16 in. length.
range of plus or minus 1 mm or 1⁄16 in. from the specified
4.4 Record the length measured in 5.1.
length depending on the unit of measure used: millimetres or
inches. An examination of the results of dip tube length
1
measurements from __ technicians in one lab found that ten
This test method is under the jurisdiction of ASTM Committee D10 on
pumps measured under Test Method “A” had a range in length
Packaging and is the direct responsibility of Subcommittee D10.33 on Mechanical
Dispensers. specified from ___ in. long. Data is currently being gathered.
Current edition approved April 10, 2000. Published June 2000. 6.2 Bias—This test method has no bias because an accepted
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
1
D 6536
reference or referee value is not available. 7. Keywords
7.1 dip tube length; dip tube measurement; mechanical
pump dispenser
The American Society for Testing and Materials takes no position respecting the validity of any patent rights asserted in connection
with any item mentioned in this standard. Users of this standard are expressly advised that determination of the validity of any such
patent rights, and the risk of 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 and
if not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standards
and should be addressed to ASTM Headquarters. Your comments will receive careful consideration at a meeting of the responsible
technical committee, which you may attend. If you feel that your comments have not received a fair hearing you should make your
views known to the ASTM Committee on Standards, at the address shown below.
This standard is copyrighted by ASTM, 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 above address or at
610-832-9585 (phone), 610-832-9555 (fax), or service@astm.org (e-mail); or through the ASTM website (www.astm.org).

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Standard Test Method for

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