ASTM D3076-00(2010)
(Test Method)Standard Test Methods for Effective Crimping on Outside Crimped Valves of Aerosol Containers
Standard Test Methods for Effective Crimping on Outside Crimped Valves of Aerosol Containers
SIGNIFICANCE AND USE
This test method provides information for the establishment of quality control procedures on filling lines.
SCOPE
1.1 These test methods cover the effective crimping on outside crimped valves within the wide parameters of containers and valves available.
1.2 The test methods appear in the following order:
Sections Optical Comparator Test Method4 to 7 Caliper Test Method8 to 12
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:D3076 −00 (Reapproved 2010)
Standard Test Methods for
Effective Crimping on Outside Crimped Valves of Aerosol
Containers
This standard is issued under the fixed designation D3076; 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 OPTICAL COMPARATOR TEST METHOD
4. Summary of Test Method
1.1 These test methods cover the effective crimping on
outside crimped valves within the wide parameters of contain-
4.1 This test method involves drawing a projected, enlarged
ers and valves available.
profile of the container and valve, then removing the valve and
drawingtheprojectedprofileofthecontainerfinish.Measuring
1.2 The test methods appear in the following order:
the resultant void and subtracting the dimensions of the
Sections
essentially noncompressed components from this value results
Optical Comparator Test Method 4 to 7
Caliper Test Method 8 to 12 in the value representing the compressed thickness of the valve
sealing gasket.
1.3 The values stated in SI units are to be regarded as
standard. No other units of measurement are included in this
5. Significance and Use
standard.
5.1 This test method provides information for the establish-
ment of quality control procedures on filling lines.
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
6. Apparatus
responsibility of the user of this standard to establish appro-
6.1 Optical Comparator.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. 6.2 Clamping Jig, fastened to the comparator bench.
6.3 Grinder, electric, small enough to be hand held.
2. Referenced Documents
7. Procedure
2.1 ASTM Standards:
7.1 Crimp a valve on an empty bottle with the line crimper
D996 Terminology of Packaging and Distribution Environ-
set at normal operation, and clamp the bottle in the jig on the
ments
comparator bench.
D3064 Terminology Relating To Aerosol Products
7.2 Draw the projected, enlarged image on tracing paper.
3. Terminology NOTE 1—Grid ruled tracing paper makes the tracing much easier.
7.3 Without disturbing the paper or bottle, cut a wedge out
3.1 General definitions for packaging and distribution envi-
of the valve with the electric grinder, and remove the valve.
ronments are found in Terminology D996.
7.4 Trace the projected image of the container alone on the
3.2 General definitions of terms relating to aerosol products
same paper.
are found in D3064.
7.5 Measure the void between the two silhouettes (Fig. 1
and Fig. 2). Subtract the dimensions (multiplied by the
enlargement factor of the essentially uncompressed compo-
These test methods are under the jurisdiction of ASTM Committee D10 on
nentsofthevalve)fromthisvaluetoobtainthethicknessofthe
Packaging and are the direct responsibility of Subcommittee D10.33 on Mechanical
compressed gasket multipled by the enlargement factor, and
Dispensers. These test methods were originally developed by the Chemical
Specialties Manufacturers Assn. convert this reading into percent compression.
Current edition approved Oct. 1, 2010. Published November 2010. Originally
approved in 1972. Last previous edition approved in 2005 as D3076 – 00 (2005).
CALIPER TEST METHOD
DOI: 10.1520/D3076-00R10.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
8. Summary of Test Method
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
8.1 This test method involves a measurement of the height
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. of the uncrimped portion of the valve. The points between
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D3076−00 (2010)
A—points between which effective crimp height measurement should be made (these points are self-determining when the calipers are held parallel to thesideofthe
valve).
B—points between which a relative measurement may be established for nondestructure quality control use from optical comparator data.
C—effective compression.
D—flat compression.
FIG. 1Effective Crimp Height
A—representation of a plastic-coated bottle.
B—representation of an uncoated bottle.
NOTE 1—A and B represent points between which measurements should be made after drawing the projected profiles.
FIG. 2Optical Comparator Profile
which the measurement is made are self-determining when the 11.3 Holding the calipers parallel to the side of the valve,
calipers are held parallel to the side of the valve. Mean place the inner jaw on the top of the valve.
dimensions are used in calculating the effective crimp height.
11.4 Slide the outer jaw up the valve skirt until it stops, due
9. Significance and Use to the abrupt directional change in the skirt.
11.4.1 In collect-crimped bottles a line appears at the top of
9.1 This test method provides information for the establish-
the crimped skirt area. This is made by the top of the collect
ment of quality control procedures on filling lines.
segment, and is the point at which direction changes abruptly
10. Apparatus
and the caliper will hang up.
10.1 Calipers, vernier or dial.
11.4.2 Roll-capped bottles will also produce this horizontal
line at the top of the crimped area. Depending upon the facial
11. Procedure
contour of the rollers, this line may be above or at the point of
11.1 Select a filled bottle from the filling line at random.
abrupt direction change. Letting the caliper find the point of
direction change naturally, will eliminate doubt about this
11.2 Mark off three points, 120° apart, on the valve ferrule,
carefully avoiding areas where stake marks occur. measurement.
D3076−00 (2010)
11.5 Repeatthisprocessattheotherlocationsmarkedonthe valve/aluminum can combination with two replicate tests,
...
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