ASTM D6536 - D 6536M - 18 (2025) 测量机械泵分配器吸管长度的标准实施规程

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Designation: D6536/D6536M −18 (Reapproved 2025)

Standard Practice for

Measuring the Dip Tube Length of a Mechanical Pump

Dispenser

This standard is issued under the ﬁxed designation D6536/D6536M; 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 (´) indicates an editorial change since the last revision or reapproval.

1. Scope

1.1 This practice covers the measurement 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

each system may not be exact equivalents; therefore, each

system shall be used independently of the other. Combining

values from the two 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

responsibility of the user of this standard to establish appro-

priate safety, health, and environmental practices and deter-

mine the applicability of regulatory limitations prior to use.

1.4 This international standard was developed in accor-

dance with internationally recognized principles on standard-

ization established in the Decision on Principles for the

Development of International Standards, Guides and Recom-

mendations issued by the World Trade Organization Technical

Barriers to Trade (TBT) Committee.

2. Signiﬁcance and Use

2.1 This practice is to be used to measure the length of 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 practice is to be used to measure the exposed length

of a speciﬁed dip tube of a mechanical pump dispenser.

3. Apparatus

3.1 Thin Metal Ruler, with minimum gradients of 1 mm or

⁄

in., or both, along with a zero index at the end of the ruler.

3.2 Calipers.

4. Procedure

PRACTICE “A”—MEASUREMENT OF OVERALL

DIP TUBE LENGTH

NOTE 1—This practice is used when the exposed sealing surface of the

mechanical pump dispenser is large enough to measure from.

4.1 While holding the mechanical pump dispenser with its

axis in a horizontal plane, place the zero index end of the ruler

against the bottom of the seal surface. Fig. 1—dimension “X.”

4.2 If needed, straighten the dip tube out so that it is parallel

with the length of the ruler.

4.3 Measure the overall length of the dip tube to within a

full millimetre or

⁄

in. length.

4.4 Record the length measured in 5.1.

PRACTICE “B”—MEASUREMENT OF EXPOSED DIP

TUBE LENGTH

NOTE 2—This practice is used in all applications.

4.5 While holding the mechanical pump dispenser with its

axis in a horizontal plane, place the zero index end of the ruler

against the bottom end of the body. Fig. 1—dimension “Z.”

4.6 If needed straighten the dip tube out so that it is parallel

with the length of the ruler.

4.7 Measure the exposed length of the dip tube to within a

full millimetre or

⁄

in. length.

4.8 Record the length measured in 5.1.

5. Report

5.1 Report the following information:

5.1.1 Type of mechanical pump dispenser,

5.1.2 Dip tube length measured, and

5.1.3 Practice used.

6. Precision and Bias

6.1 Precision—The precision of this practice is within a

range of plus or minus 1 mm or

⁄

in. from the speciﬁed

length depending on the unit of measure used: millimetres or

inches. An examination of the results of dip tube length

measurements from __ technicians in one lab found that ten

pumps measured under Practice “A” had a range in length

speciﬁed from ___ in. long. Data is currently being gathered.

This practice is under the jurisdiction of ASTM Committee F02 on Primary

Barrier Packaging and is the direct responsibility of Subcommittee F02.30 on

Mechanical Dispensers.

Current edition approved Nov. 1, 2025. Published December 2025. Originally

approved in 2000. Last previous edition approved in 2018 as D6536/D6536M – 18.

DOI: 10.1520/D6536_D6536M-18R25.

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the

Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

6.2 Bias—This practice has no bias because an accepted

reference or referee value is not available.

7. Keywords

7.1 dip tube length; dip tube measurement; mechanical

pump dispenser

ASTM International 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 International 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 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 above

address or at 610-832-9585 (phone), or through the ASTM website (www.astm.org/contact). Permission rights to photocopy the

standard may also be secured from the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600;

http://www.copyright.com/

FIG. 1 Overall Dip Tube Length “X” Versus Exposed Dip Tube

Length “Z”

D6536/D6536M − 18 (2025)

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摘要：

ASTM D6536/D6536M-18(2025)《测量机械泵分配器吸管长度的标准实施规程》为机械泵分配器吸管长度的测量提供统一、可重复的操作框架，适用于包装、日化、制药、实验室、质检及供应链来料检验等场景。该标准帮助制造商、供应商和检测机构在产品开发、质量控制、装配验证与合规评估中规范测量方法、记录数据并提升尺寸一致性，从而保障泵头与吸管配合、装配效率及最终使用性能。关注 ASTM D6536/D6536M、机械泵分配器、吸管长度、D6536M-18(2025) 标准更新与测试要求的用户，可

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ASTM D6536 - D 6536M - 18 (2025) 测量机械泵分配器吸管长度的标准实施规程

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