ASTM D3094-00(2005)
(Test Method)Standard Test Method for Seepage Rate of Aerosol Products
Standard Test Method for Seepage Rate of Aerosol Products
SIGNIFICANCE AND USE
This test method affords a more rapid answer to the ever-present problem of mass loss during storage. It is of particular value in determining the effectiveness of valve stake and clinch seal elastomers in contact with new formulations. This test method may also be used to evaluate new valves with standard mixtures.
SCOPE
1.1 This test method covers the determination of approximate mass loss due to valve seepage rate of aerosol products by the collection and measurement of gases seeping through the valve and into a special eudiometer tube, over a relatively short time period.
1.2 It can be shown that the average refrigeration-filled aerosol product seeps to the extent of approximately 3.0 mL when the corresponding mass loss is 0.10 oz (2.9 cm2)/year. This figure is partially based on air content and is subject to variations according to filling conditions. This test method is not considered dependable when applied to pressure-filled, unpurged aerosol products.
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 appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:D3094–00 (Reapproved 2005)
Standard Test Method for
Seepage Rate of Aerosol Products
This standard is issued under the fixed designation D3094; 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 covers the determination of approxi-
mate mass loss due to valve seepage rate of aerosol products
by the collection and measurement of gases seeping through
the valve and into a special eudiometer tube, over a relatively
short time period.
1.2 It can be shown that the average refrigeration-filled
aerosol product seeps to the extent of approximately 3.0 mL
when the corresponding mass loss is 0.10 oz (2.9 cm )/year.
This figure is partially based on air content and is subject to
variations according to filling conditions. This test method is
NOTE 1—The dimensions are approximate, and subject to the geometry
not considered dependable when applied to pressure-filled,
of the valve.
unpurged aerosol products.
FIG. 1 Suggested Tube for Evaluation of Valve and Staked Seals
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-
for any part of the valve that might protrude into the tube). It
priate safety and health practices and determine the applica-
is convenient to calibrate in 1, 2, and 3-mL divisions.
bility of regulatory limitations prior to use.
NOTE 1—Fortestsinvolvingmanydispensers,smalltesttubesandvials
2. Significance and Use
have been successfully substituted for the tubes in Fig. 1 and Fig. 2.
2.1 This test method affords a more rapid answer to the
4. Test Specimens
ever-present problem of mass loss during storage. It is of
4.1 Test specimens shall be prepared in accordance with
particular value in determining the effectiveness of valve stake
production methods wherever possible, making certain that the
and clinch seal elastomers in contact with new formulations.
clinch diameter and the depth of clinch below the curl of the
This test method may also be used to evaluate new valves with
mounting cup are in agreement with the specifications. New
standard mixtures.
3. Apparatus
3.1 Bath, constant-temperature, equipped with a thermo-
regulator sufficient to maintain water at 80 6 2°F (26 6 1°C).
The tank should be of sufficient proportions to accommodate
the necessary number of test specimens in an upright position,
so that each specimen is surrounded by approximately 1 in. (25
mm) of water.
3.2 Eudiometer Tubes (Fig. 1 and Fig. 2), custom-ordered
or hand-made, with an internal volume of 5.0 mLnet (allowing
This test method is under the jurisdiction of ASTM Committee D10 on
Packaging and is the direct responsibility of Subcommittee D10.33 on Mechanical
Dispensers. This test method was originally developed by the Chemical Specialties
Manufacturers Assn.
Current edition approved Oct. 1, 2005. Published October 2005. Originally
NOTE 1—The dimensions are approximate, and subject to the geometry
approved in 1972. Last previous edition approved in 2000 as D3094 – 00. DOI:
of the valve.
10.1520/D3094-00R05.
Data on the theoretical development of seepage concepts has been filed at FIG. 2 Suggested Tube for Evaluation of Valve, and Staked and
ASTM Headquarters as RR:D-10-1000. Clinched Seals
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D3094–00 (2005)
dispensers shall be pretested for leakage by heating the
contents to 130°F (54°C).
5. Procedure
5.1 Fill the bath with water that has been allowed to
deaerate for 24 h at room temperature. Bring the bath to 80°F
(26°C) and immerse the dispensers.
5.2 Scrub the bath walls, bottom, and dispenser surfaces to
remove adhering air. Give the dispensers a hard knock to
release any air bubbles clinging to the valve parts.
5.3 Submerge the eudiometer tubes and fill them. Remove
the air bubbles. Invert the tubes over the dispenser valves and
allow them to remain for 48 h.
5.4 Give each dispenser a hard knock to free the clinging
gas into the inverted eudiometer tube. Determine and
...
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