Gruhn, Paul <br/><br/>
Safety instrumented systems :  design, analysis, and justification / 
by Paul Gruhn and Harry Cheddie 
 - 2nd ed. 
 - Research Triangle Park, NC :  ISA-The Instrumentation, Systems, and Automation Society,  2006 
 - xii, 306 p. :  ill. ;  26 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9781556179563 (pbk.) 1556179561 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>System safety<br/>Process control<br/>Industrial safety