ASTM F434-93(2003)

Standard Test Method for Blow-Out Testing of Preformed Gaskets

SCOPE
1.1 This test method covers the determination of the resistance against blow-out of preformed gaskets. The test is conducted under ambient conditions and should be used for comparison purposes only to select suitable designs and constructions for specific applications.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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

• Status: Historical
• Publication Date: 30-Sep-2003
• ICS: 91.100.50 - Binders. Sealing materials
• Technical Committee: F03 - Gaskets
• Drafting Committee: F03.20 - Mechanical Test Methods

Relations

• Replaces: ASTM F434-93(1997) - Standard Test Method for Blow-Out Testing of Preformed Gaskets
• Effective Date: 01-Oct-2003
• Replaced By: ASTM F434-93(2003)e1 - Standard Test Method for Blow-Out Testing of Preformed Gaskets
• Effective Date: 01-Oct-2003

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:F434–93 (Reapproved 2003)
Standard Test Method for
Blow-Out Testing of Preformed Gaskets
This standard is issued under the fixed designation F434; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3.4 Temperature Indicating Device—A thermometer ca-
pable of reading 1°C (2°F) in the ambient temperature range.
1.1 This test method covers the determination of the resis-
tance against blow-out of preformed gaskets. The test is
4. Test Specimen
conducted under ambient conditions and should be used for
4.1 The specimen shall be a 102 mm (4-in.) nominal-size
comparison purposes only to select suitable designs and
gasket114mm(4.5in.)ininsidediameterby165mm(6.5in.)
constructions for specific applications.
in outside diameter. The thickness of the test gasket will
1.2 The values stated in SI units are to be regarded as the
depend upon its expected usage and must be specified in the
standard. The values given in parentheses are for information
report, as results will vary accordingly.
only.
1.3 This standard does not purport to address all of the
5. Procedure
safety concerns, if any, associated with its use. It is the
5.1 Assemble the specimen in the test unit.
responsibility of the user of this standard to establish appro-
5.2 The bolt threads should be well lubricated using moly-
priate safety and health practices and determine the applica-
disulfide dry film or grease. Sanding the bottom of the bolt
bility of regulatory limitations prior to use.
heads and the washers will reduce torque variable and ensure
duplication of results.
2. Significance and Use
5.3 Tighten the bolts, using the sequence shown in Fig. 2,
2.1 This test method is designed to compare all types of
increasing the torque loading in 25% increments to the
preformed gaskets under controlled conditions with respect to
targeted torque, but do not exceed the rating on the bolts.
blow-out resistance.This test method may be used as a routine
5.4 Fill the test unit with water, and bleed out all excess air
test when agreed upon between the purchaser and the seller.
by tilting until no further air bubbles are forthcoming.
3. Apparatus 5.5 Fill the oil reservoir (thermowell) three-quarters full of
light oil. Allow 15 min for the temperature to stabilize, and
3.1 Pressure Supply, capable of 7 MPa (1000 psi), prefer-
insert the temperature sensor.
ablyhydraulic,andwithpropersafetyprecautions,intheevent
5.6 Before applying hydrostatic pressure, cover the entire
of a rapid-gasket failure.
test receptacle with a metal shield, leaving the gage exposed
3.2 Test Unit, capable of withstanding 7 MPa (1000 psi)
for the recording of data.
internal pressure under ambient conditions. Provisions should
5.7 Attach a water hose from the booster pump, and
be made for valve and pressure gage mountings, as shown in
graduallyapplywaterpressure.Thisshouldbedoneundersafe
Fig.1.Thegageshallreadfrom0to7MPa(0to1000psi)and
conditions, as follows:
be mounted so as to be visible at some distance.
5.7.1 The operator should be wearing suitable safety equip-
3.3 Booster Pump—An air-operated hydraulic (water) pres-
−5 3 3
ment,
surepump,capableofdelivering1.1 310 m /s(40in. /min)
5.7.2 The control valve should be located at a safe distance
against a back
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