ASTM D3094-00(2010)
(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 cm3)/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 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 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.
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Designation: D3094 − 00 (Reapproved 2010)
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 The tank should be of sufficient proportions to accommodate
the necessary number of test specimens in an upright position,
1.1 This test method covers the determination of approxi-
2 so that each specimen is surrounded by approximately 1 in. (25
mate mass loss due to valve seepage rate of aerosol products
mm) of water.
by the collection and measurement of gases seeping through
the valve and into a special eudiometer tube, over a relatively 3.2 EudiometerTubes (Fig. 1 and Fig. 2), custom-ordered or
short time period. hand-made, with an internal volume of 5.0 mL net (allowing
for any part of the valve that might protrude into the tube). It
1.2 It can be shown that the average refrigeration-filled
is convenient to calibrate in 1, 2, and 3-mL divisions.
aerosol product seeps to the extent of approximately 3.0 mL
when the corresponding mass loss is 0.10 oz (2.9 cm )/year.
NOTE 1—For tests involving many dispensers, small test tubes and vials
have been successfully substituted for the tubes in Fig. 1 and Fig. 2.
This figure is partially based on air content and is subject to
variations according to filling conditions. This test method is
4. Test Specimens
not considered dependable when applied to pressure-filled,
4.1 Test specimens shall be prepared in accordance with
unpurged aerosol products.
production methods wherever possible, making certain that the
1.3 The values stated in inch-pound units are to be regarded
clinch diameter and the depth of clinch below the curl of the
as standard. The values given in parentheses are mathematical
mounting cup are in agreement with the specifications. New
conversions to SI units that are provided for information only
dispensers shall be pretested for leakage by heating the
and are not considered standard.
contents to 130°F (54°C).
1.4 This standard does not purport to address all of the
5. Procedure
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5.1 Fill the bath with water that has been allowed to
priate safety and health practices and determine the applica-
deaerate for 24 h at room temperature. Bring the bath to 80°F
bility of regulatory limitations prior to use.
(26°C) and immerse the dispensers.
2. Significance and Use 5.2 Scrub the bath walls, bottom, and dispenser surfaces to
remove adhering air. Give the dispensers a hard knock to
2.1 This test method affords a more rapid answer to the
release any air bubbles clinging to the valve parts.
ever-present problem of mass loss during storage. It is of
5.3 Submerge the eudiometer tubes and fill them. Remove
particular value in determining the effectiveness of valve stake
and clinch seal elastomers in contact with new formulations. the air bubbles. Invert the tubes over the dispenser valves and
allow them to remain for 48 h.
This test method may also be used to evaluate new valves with
standard mixtures.
5.4 Give each dispenser a hard knock to free the clinging
gas into the inverted eudiometer tube. Determine and record
3. Apparatus
the amount of gas in each tube.
3.1 Bath, constant-temperature, equipped with a thermo-
5.5 The mass loss due to seepage through the valve and
regulator sufficient to maintain water at 80 6 2°F (26 6 1°C).
O-ring seal represents only a part of the total mass loss.
Leakage will also occur at the seams and seam junctures.
This test method is under the jurisdiction of ASTM Committee D10 on
Packaging and is the direct responsibility of Subcommittee D10.33 on Mechanical
5.6 There is usuallya1to 2-week adjustment period with
Dispensers. This test method was originally developed by the Chemical Specialties
new dispensers, during which some perturbations in seepage
Manufacturers Assn.
rate will occur. After this, a reasonably steady day-to-day rate
Current edition approved Oct. 1, 2010. Published November 2010. Originally
approved in 1972. Last previous edition approved in 2005 as D3094 – 00 (2005).
is assumed.
DOI: 10.1520/D3094-00R10.
NOTE 2—Many dispensers are found to rust slightly when stored under
Data on the theoretical development of seepage concepts has been filed at
ASTM Headquarters as RR:D10-1000. Contact ASTM Customer Service
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