Marszal, Edward M. <br/><br/>
Safety integrity level selection :  systematic methods including layer of protection analysis / 
Edward M. Marszal, Eric W. Scharpf. 
 - Research Triangle Park, NC :  Instrumentation, Systems, and Automation Society,  c2002. 
 - xv, 248 p. :  ill. ;  26 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9781556177774 1556177771 
<br/><br/><label>LCCN: </label>2002-003324 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Industrial safety--Data processing.<br/>System safety.