ASTM F434-93(2017) pdf free.Standard Test Method for Blow-Out Testing of Preformed Gaskets. ASTM F434 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. 5. Test Spedmen 5.1 The specimen shall be a 102 mm...