ASTM F434-93(2009)

Standard Test Method for Blow-Out Testing of Preformed Gaskets

SIGNIFICANCE AND USE
This test method is designed to compare all types of preformed gaskets under controlled conditions with respect to blow-out resistance. This test method may be used as a routine test when agreed upon between the purchaser and the seller.
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-2009
• ICS: 91.100.50 - Binders. Sealing materials
• Technical Committee: F03 - Gaskets
• Drafting Committee: F03.20 - Mechanical Test Methods

Relations

• Replaces: ASTM F434-93(2003)e1 - Standard Test Method for Blow-Out Testing of Preformed Gaskets
• Effective Date: 01-Oct-2009
• Replaced By: ASTM F434-93(2017) - Standard Test Method for Blow-Out Testing of Preformed Gaskets
• Effective Date: 01-May-2017

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 2009)
Standard Test Method for
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Blow-Out Testing of Preformed Gaskets
ThisstandardisissuedunderthefixeddesignationF434;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope be made for valve and pressure gage mountings, as shown in
Fig.1.Thegageshallreadfrom0to7MPa(0to1000psi)and
1.1 This test method covers the determination of the resis-
be mounted so as to be visible at some distance.
tance against blow-out of preformed gaskets. The test is
conducted under ambient conditions and should be used for 4.3 Booster Pump—An air-operated hydraulic (water) pres-
−5 3 3
comparison purposes only to select suitable designs and sure pump, capable of delivering 1.1×10 m /s (40 in. /min)
constructions for specific applications. against a back pressure of 35 MPa (5000 psi).
1.2 The values stated in SI units are to be regarded as the 4.4 Temperature Indicating Device—A thermometer ca-
standard. The values given in parentheses are for information pable of reading 1°C (2°F) in the ambient temperature range.
only.
5. Test Specimen
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 5.1 The specimen shall be a 102 mm (4-in.) nominal-size
responsibility of the user of this standard to establish appro- gasket114mm(4.5in.)ininsidediameterby165mm(6.5in.)
priate safety and health practices and determine the applica- in outside diameter. The thickness of the test gasket will
bility of regulatory limitations prior to use. depend upon its expected usage and must be specified in the
report, as results will vary accordingly.
2. Referenced Documents
6. Procedure
2.1 ASTM Adjuncts:
2
Detailed Drawings of Test Unit
6.1 Assemble the specimen in the test unit.
6.2 The bolt threads should be well lubricated using moly-
3. Significance and Use
disulfide dry film or grease. Sanding the bottom of the bolt
3.1 This test method is designed to compare all types of
heads and the washers will reduce torque variable and ensure
preformed gaskets under controlled conditions with respect to
duplication of results.
blow-out resistance.This test method may be used as a routine
6.3 Tighten the bolts, using the sequence shown in Fig. 2,
test when agreed upon between the purchaser and the seller.
increasing the torque loading in 25% increments to the
4. Apparatus
targeted torque, but do not exceed the rating on the bolts.
4.1 Pressure Supply, capable of 7 MPa (1000 psi), prefer-
6.4 Fill the test unit with water, and bleed out all excess air
ablyhydraulic,andwithpropersafetyprecautions,intheevent
by tilting until no further air bubbles are forthcoming.
of a rapid-gasket failure.
6.5 Fill the oil reservoir (thermowell) three-quarters full of
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4.2 Test Unit, capable of withstanding 7 MPa (1000 psi)
light oil. Allow 15 min for the temperature to stabilize, and
internal pressure under ambient conditions. Provisions should
insert the temperature sensor.
6.6 Before applying hydrostatic pressure, cover the entire
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This test method is under the jurisdiction ofASTM Committee F03 on Gaskets
test receptacle with a metal shield, leaving the gage exposed
and is the direct responsibility of Subcommittee F03.20 on Mechanical Test
for the recording of data.
Methods.
Current edition approved Oct. 1, 2009. Published March 2010. Originally
6.7 Attach a water hose from the booster pump, and
ε1
approved in 1975. Last previous edition approved in 2003 as F434–93(2003) .
graduallyapplywaterpressure.Thisshouldbedoneundersafe
DOI: 10.1520/F0434-93R09.
conditions, as follows:
2
Available from ASTM International Headquarters. Order Adjunct No.
6.7.1 The operator should be wearing suitable safety
ADJF0434.
3
The sole source of supply of the apparatus known to the committee at this time
equipment,
is the Pfaudler Co., PO Box 1600, Rochester, NY 14603. If you are aware of
6.7.2 The control valve should be located at a safe distance
alternative suppliers, please provide this information to ASTM International
from the test area, and
Headquarters.Your comments will receive careful consideration at a meeting of the
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responsible technical committee, which you may attend. 6.7.3 Quick and violent pressure surges should be avoided.
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F434 − 93 (2009)
FIG. 1 Test Unit
2, 3, 4, and 24 h intervals. Record temperatures along with
pressure readings. Since a closed system results, the absolute
pressure will be proportional to the absolute temperature.
6.
...