Kenexis Consulting Corporation today announced the Kenexis SIS Engineering Handbook is available for purchase exclusively through the website for USD $9.99. The Handbook covers many critical aspects of Safety Instrumented System design, such as Safety Integrity Level (SIL) Selection, SIL Verification, Safety Requirements Specifications (SRS), test procedure development and maintenance. The Handbook contains valuable information for anyone facilitating or attending SIL selection meetings; tables of commonly used initiating event frequencies and protection layers will allow better-informed decisions. The Handbook also enumerates critical data for anyone performing SIL verification calculations; Kenexis conducted an exhaustive review of internal and external sources to determine failure rates for many commonly used devices. The Kenexis SIS Engineering Handbook, paperback edition, joins the Kindle edition, which has been available through since July.