Acoustic emission. 

 - Philadelphia,Pa. :  ASTM,  1972. 
 - /ASTM-STP--505/ .
 - ASTM^nAmerican Society for Testing and Materials, Philadelphia^pUS .
 - /ASTM-STP--505/ .
<br/><br/><label>Subjects--Topical Terms: </label><br/>ACOUSTIC EMISSION