ASTM F434-93(2003)e1

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

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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.
´1
Designation:F434–93 (Reapproved 2003)
Standard Test Method for
Blow-Out Testing of Preformed Gaskets
ThisstandardisissuedunderthefixeddesignationF434;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
´ NOTE—Section 2 was included editorially in April 2006.
1. Scope 4.2 Test Unit, capable of withstanding 7 MPa (1000 psi)
internal pressure under ambient conditions. Provisions should
1.1 This test method covers the determination of the resis-
be made for valve and pressure gage mountings, as shown in
tance against blow-out of preformed gaskets. The test is
Fig.1.Thegageshallreadfrom0to7MPa(0to1000psi)and
conducted under ambient conditions and should be used for
be mounted so as to be visible at some distance.
comparison purposes only to select suitable designs and
4.3 Booster Pump—An air-operated hydraulic (water) pres-
constructions for specific applications.
−5 3 3
surepump,capableofdelivering1.1 310 m /s(40in. /min)
1.2 The values stated in SI units are to be regarded as the
against a back pressure of 35 MPa (5000 psi).
standard. The values given in parentheses are for information
4.4 Temperature Indicating Device—A thermometer ca-
only.
pable of reading 1°C (2°F) in the ambient temperature range.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
5. Test Specimen
responsibility of the user of this standard to establish appro-
5.1 The specimen shall be a 102 mm (4-in.) nominal-size
priate safety and health practices and determine the applica-
gasket114mm(4.5in.)ininsidediameterby165mm(6.5in.)
bility of regulatory limitations prior to use.
in outside diameter. The thickness of the test gasket will
2. Referenced Documents depend upon its expected usage and must be specified in the
report, as results will vary accordingly.
2.1 ASTM Adjuncts:
Detailed Drawings of Test Unit
6. Procedure
3. Significance and Use 6.1 Assemble the specimen in the test unit.
6.2 The bolt threads should be well lubricated using moly-
3.1 This test method is designed to compare all types of
disulfide dry film or grease. Sanding the bottom of the bolt
preformed gaskets under controlled conditions with respect to
heads and the washers will reduce torque variable and ensure
blow-out resistance.This test method may be used as a routine
duplication of results.
test when agreed upon between the purchaser and the seller.
6.3 Tighten the bolts, using the sequence shown in Fig. 2,
4. Apparatus
increasing the torque loading in 25% increments to the
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
light oil. Allow 15 min for the temperature to stabilize, and
insert the temperature sensor.
6.6 Before applying hydrostatic pressure, cover the entire
test receptacle with a metal shield, leaving the gage exposed
for the recording of data.
This test method is under the jurisdiction ofASTM Committee F03 on Gaskets
and is the direct responsibility of Subcommittee F03.20 on Mechanical Test
Methods.
Current edition approved Oct. 1, 2003. Published October 2003. Originally The sole source of supply of the apparatus know
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