ASTM D4335-18

Standard Practice for Determination of Component Retention of a Mechanical Pump Dispenser

SIGNIFICANCE AND USE
3.1 This practice may be used to establish performance specifications.  
3.2 This practice may be used to establish quality control assessment.
SCOPE
1.1 This practice covers the evaluation of the force required to remove the hood and the actuator from a mechanical dispensing pump.  
1.2 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 appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.3 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.

General Information

• Status: Published
• Publication Date: 30-Apr-2018
• ICS: 55.020 - Packaging and distribution of goods in general
• Technical Committee: F02 - Primary Barrier Packaging
• Drafting Committee: F02.30 - Mechanical Dispensers

Standards Content (Sample)

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.
Designation: D4335 − 18
Standard Practice for
Determination of Component Retention of a Mechanical
1
Pump Dispenser
This standard is issued under the fixed designation D4335; 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.
NOTE 2—The test standard should be equipped with a maximum-force
1. Scope
indicator.
1.1 This practice covers the evaluation of the force required
4.2 Fixtures, to hold the mechanical pump dispenser.
to remove the hood and the actuator from a mechanical
4.2.1 The fixtures must allow no slippage between the test
dispensing pump.
specimen and the fixture, so that distortion is avoided.
1.2 This standard does not purport to address all of the
4.2.2 The fixtures for the test apparatus may be custom-
safety concerns, if any, associated with its use. It is the
made for this test.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
5. Sampling
mine the applicability of regulatory limitations prior to use.
5.1 Select an appropriate number of dry, unused pump
1.3 This international standard was developed in accor-
dispensers at random for precision and accuracy desired. Use
dance with internationally recognized principles on standard-
of 10 test specimens is recommended, but a minimum of three
ization established in the Decision on Principles for the
is acceptable.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
6. Test Specimen
Barriers to Trade (TBT) Committee.
6.1 Test specimens shall be clean, dry, and previously
2. Referenced Documents
unused mechanical pump dispensers assembled in the same
2
manner as in production.
2.1 ASTM Standards:
D618 Practice for Conditioning Plastics for Testing
7. Conditioning
3. Significance and Use
7.1 If possible, condition the test specimens at 23 6 3°C (73
6 5.4°F) for not less than 4 h. If the test specimens are not
3.1 This practice may be used to establish performance
conditioned at the recommended temperature, this should be
specifications.
noted in the test report (see 9.1).
3.2 This practice may be used to establish quality control
assessment.
8. Procedure
4. Apparatus 8.1 Attach fixtures to the test stand in accordance with the
manufacturer’s instructions or in a manner consistent with the
4.1 Test Stand—The test apparatus shall be capable of
pump’s geometry.
applying a smoothly increasing load to the test specimen until
the component is separated from the pump assembly.
8.2 Adjust the test stand so that there is no force acting on
the specimen.
NOTE 1—The condition of 4.1 is fulfilled by most motor driven tensile
strength testers including constant rate of elongation testers.
NOTE 3—At this time, there should be a zero reading on the force gage.
8.3 Manual Method:
1
This practice is under the jurisdiction of ASTM Committee F02 on Primary
8.3.1 Place the pump assembly into the fixture.
Barrier Packaging and is the direct responsibility of Subcommittee F02.30 on
8.3.2 Grasp the component to be separated in the hand.
Mechanical Dispensers.
8.3.3 Pull the component as slowly as possible, avoiding
Current edition approved May 1, 2018. Published June 2018. Originally
quick, jerking actions.
approved in 1984. Last previous edition approved in 2010 as D4335 – 99(2010).
DOI: 10.1520/D4335-18.
8.3.4 Continue to pull the component until it separates from
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
the assembly.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
8.3.5 Observe and record the maximum force, N (lb),
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. required to separate the component from the assembly.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D4335 − 18
8.4 Machine Method: 9.1.7 Method used, whether manual or machine (see 8.3 and
8.4.1 Place the pump assembly into the fixture. 8.4).
8.4.2 Secure the other component to the movable crosshead.
10. Precision and Bias
8.4.3 Operate the test stand at a rate of 250 mm/min (10
10.1 Precision—The precision of Practice D4335 is highly
in./min).
dependent on the interference requirements of the particular
8.4.4 Stop the machine when the component has separated
pump components tested. On
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it 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 version
of the standard as published by ASTM is to be considered the official document.
Designation: D4335 − 99 (Reapproved 2010) D4335 − 18
Standard Test Method Practice for
Determination of Component Retention of a Mechanical
1
Pump Dispenser
This standard is issued under the fixed designation D4335; 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 test method practice covers the evaluation of the force required to remove the hood and the actuator from a mechanical
dispensing pump.
1.2 This standard may involve hazardous materials, operations, and equipment. 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 consult and establish
appropriate safety safety, health, and healthenvironmental practices and determine the applicability of regulatory limitations prior
to use.
1.3 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D618 Practice for Conditioning Plastics for Testing
3. Significance and Use
3.1 This test method practice may be used to establish performance specifications.
3.2 This test method practice may be used to establish quality control assessment.
4. Apparatus
4.1 Test Stand—The test apparatus shall be capable of applying a smoothly increasing load to the test specimen until the
component is separated from the pump assembly.
NOTE 1—The condition of 4.1 is fulfilled by most motor driven tensile strength testers including constant rate of elongation testers.
NOTE 2—The test standard should be equipped with a maximum-force indicator.
4.2 Fixtures, to hold the mechanical pump dispenser.
4.2.1 The fixtures must allow no slippage between the test specimen and the fixture, so that distortion is avoided.
4.2.2 The fixtures for the test apparatus may be custom-made for this test.
5. Sampling
5.1 Select an appropriate number of dry, unused pump dispensers at random for precision and accuracy desired. Use of 10 test
specimens is recommended, but a minimum of three is acceptable.
6. Test Specimen
6.1 Test specimens shall be clean, dry, and previously unused mechanical pump dispensers assembled in the same manner as
in production.
1
This test method practice is under the jurisdiction of ASTM Committee F02 on FlexiblePrimary Barrier Packaging and is the direct responsibility of Subcommittee F02.30
on Mechanical Pump Dispensers.
Current edition approved Oct. 1, 2010May 1, 2018. Published March 2011June 2018. Originally approved in 1984. Last previous edition approved in 20062010 as
D4335 – 99 (2006). (2010). DOI: 10.1520/D4335-99R10.10.1520/D4335-18.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D4335 − 18
7. Conditioning
7.1 If possible, condition the test specimens at 23 6 3°C (73 6 5.4°F) for not less than 4 h. If the test specimens are not
conditioned at the recommended temperature, this should be noted in the test report (see 9.1).
8. Procedure
8.1 Attach fixtures to the test stand in accordance with the manufacturer’s instructions or in a manner consistent with the pump’s
geometry.
8.2 Adjust the test stand so that there is no force acting on the specimen.
NOTE 3—At this time, there should be a zero reading on the force gage.
8.3 Manual Method:
8.3.1 Place the pump assembly into the fixture.
8.3.2 Grasp the component to be separated in the hand.
8.3.3 Pull the component as slowly as possible, avoiding quick, jerking actions.
8.3.4 Continue to pull the component until it separates from the assembly.
8.3.5 Observe and record the maximum force, N (lb), required to separate the component from the assembly.
8.4 Machine Method:
8.4.1 Place the pump assembly into the fixture.
8.4.2 Secure the other component to the movabl
...