ASTM F2467-05

Standard Practice for Measuring Static Sealing Pressure Using Pressure-Indicating Film (PIF) in Transportation Applications

SCOPE
1.1 This practice covers a standard means for measuring initial static sealing pressure in transportation applications.
1.2 It uses a pressure-indicating film (PIF) that will record the maximum load imprint of the seal-to-flange interfaces. The imprints will vary in intensity based on load across and along the interface.
1.3 These imprints can be used to determine if initial load on the gasket is adequate to attain a seal. These imprints may also indicate correct bolt torque sequence. PIFs provide an approximation of maximum pressures, and do not take into account relaxation of the joint after the torque sequence. Other methods involving dynamic measurement should be used if flange loading after relaxation is desired.
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

• Status: Historical
• Publication Date: 28-Feb-2005
• ICS: 55.040 - Packaging materials and accessories
• Technical Committee: F03 - Gaskets
• Drafting Committee: F03.10 - Composite Gaskets

Relations

• Replaced By: ASTM F2467-06 - Standard Practice for Measuring Static Sealing Pressure Using Pressure-Indicating Film (PIF) in Transportation Applications
• Effective Date: 01-Oct-2006

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:F2467–05
Standard Practice for
Measuring Static Sealing Pressure Using Pressure-
Indicating Film (PIF) in Transportation Applications
This standard is issued under the fixed designation F 2467; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3.3 Subassembly test stand with one set of mating parts of
the joint (minimum) and a complete set of fasteners.Anew set
1.1 This practice covers a standard means for measuring
of fasteners for each run shall be used if the torque loading is
initial static sealing pressure in transportation applications.
high enough to cause plastic deformation of the bolts.
1.2 It uses a pressure-indicating film (PIF) that will record
3.4 Asufficient quantity of gaskets to complete the required
the maximum load imprint of the seal-to-flange interfaces. The
number of tests as agreed upon between producer and user.
imprints will vary in intensity based on load across and along
Reuse of gaskets after initial tightening is not allowed, unless
the interface.
approved by the user.
1.3 These imprints can be used to determine if initial load
3.5 Manual densitometer or automatic scanning device for
on the gasket is adequate to attain a seal. These imprints may
reading color density (optional).
also indicate correct bolt torque sequence. PIFs provide an
approximation of maximum pressures, and do not take into
4. Summary of Practice
account relaxation of the joint after the torque sequence. Other
4.1 PIF is placed between a gasket or seal and one of the
methods involving dynamic measurement should be used if
mating flanges. Using the specified torque sequence, the
flange loading after relaxation is desired.
assembly is clamped together. After the specified waiting
1.4 This standard does not purport to address all of the
period, the system is unclamped and the PIF removed. The
safety concerns, if any, associated with its use. It is the
visible color pattern denotes where clamp pressure is present.
responsibility of the user of this standard to establish appro-
The approximate pressure can be determined from color
priate safety and health practices and determine the applica-
density using a reflective (optical) densitometer or an auto-
bility of regulatory limitations prior to use.
matic scanning device in conjunction with a computer conver-
2. Terminology sion program designed for the films. Follow the PIF supplier’s
guidelines with regard to how color density relates to pressure
2.1 Definitions:
for a given PIF.
2.1.1 pressure-indicating film (PIF), n—filmthatwill,under
varying clamp forces, give a varying imprint or color density
5. Significance and Use
that correlates directly with the joint clamp force applied in a
5.1 This practice is a screening tool and should be used in
given area.
conjunction with other more accurate real-time load-measuring
3. Special Test Equipment and Materials techniques.
5.2 This practice covers the use of PIF, which is available in
3.1 Pressure-indicating film (PIF) in the required pressure
several load ranges. This practice also covers the use of a
range(s).
manual or automatic scanning device to read indicated load.
3.2 A bolt micrometer or torque wrench for quantifying
5.3 Limitations include those applications in which the PIF
fastener load or sequence or both.
may be kinked, twisted, or buckled. PIF does not withstand
elevated temperature, low temperature, or fluid aging and does
not take into account any relaxation of bolts, gasket materials,
This practice is under the jurisdiction ofASTM Committee F03 on Gaskets and
or flange twisting, as it provides only the maximum attained
is the direct responsibility of Subcommittee F03.10 on Composite Gaskets.
Current edition approved March 1, 2005. Published March 2005. pressure.
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F2467–05
6. Conditioning 9.4 Shim as necessary to compensate for PIF interference
with joint clamp load. This is necessary only when the PIF
6.1 Conditio
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