New Paper in Free Resources – SIL-3, SIL-2, and Unicorns

There's a new paper in the Safety Instrumented System (SIS) section of PII's Free Resources area, entitled SIL-3, SIL-2, and Unicorns (There Is a High Probability Your SIL 2 and SIL 3 SIFs Have No Better Performance Than SIL 1). This paper shows that specific human error during testing, calibration maintenance, and restoration of a [...]

By |2019-12-22T21:55:24-07:00December 22nd, 2019|Free Resources, Process Safety, SIF, SIL, SIS|0 Comments

Registration for the 2020 Spring Meeting and 16th Global Congress on Process Safety is Coming Soon!

The AIChE Spring Meeting is the year’s key technical conference for practicing chemical engineers, and the 2020 edition will be held at the Hilton Americas and George R. Brown Convention Center in Houston, Texas! A wide range of subjects relevant to the current needs of industry is covered. Plus, the Global Congress on Process Safety [...]

The Process Improvement Institute 2020 Calendar of Training Courses is Open for Registration!

We've posted our 2020 calendar of process safety training courses for all world locations, both domestic and international, and these valuable courses are ready for you to join and elevate your expertise! We have training locations in Charlotte, North Carolina, Knoxville, Tennessee, and Napa, California in the United States, and Dubai and Bahrain in the [...]

New Papers in Free Resources on Identifying SIF-SIL as part of PHA/HAZOP, PHA of Non-Normal Operation Modes, and Writing Operating Procedures and Troubleshooting Guides

Just posted in the Free Resources section of the Process Improvement Institute website are three new and invaluable papers related to issues important to process safety management professionals everywhere: Identify SIF and Specify Necessary SIL, and other IPLs, as part of PHA/HAZOP Learn why it is not necessary to “Boldly Go Beyond HAZOP and LOPA.” [...]

By |2016-12-07T01:33:30-07:00April 22nd, 2016|HAZOP, PHA, SIF, SIL|0 Comments

Accounting for Human Error Probability in SIL Verification

One critical defect in the SIL standards (and technical reports from ANSI/ISA 84 committees) to remember is they do NOT account for specific human errors of mis-calibration (especially critical for SIFs with multiple sensor) and or leaving in bypass. So, the PFD to use for the IPL is the PFD(avg) from the SIL verification calc [...]

By |2016-12-07T01:33:33-07:00May 19th, 2015|Human Error, SIF, SIL|0 Comments
Go to Top