ISA-SP84 Update: Functional Safety

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ISA-SP84 UpdateFunctional Safety

• Bill Johnson, E.I. DuPont
• Chairman, ISA-SP84

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ISA-SP84

• Programmable Electronic Systems for Use in Safety
  Applications
• Membership gt 280 safety experts from user,
  supplier, and consulting companies across the
  processing and related industries
• Augmented by safety experts from key government
  and academic organizations
• Organized into several working groups reflected
  in documents published and in development (as
  described in the following)

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ISA-SP84 Milestones

• ANSI/ISA-84.00.01-2004 (IEC 61511 Modified)
  Parts 1-3 Functional Safety Safety Instrumented
  Systems for the Process Industry Sector
• Modification / adoption of IEC 61511 Parts 1-3.
• Key change addition of Grandfather Clause.
• Official notification (Nov. 2005) that the
  standards may be used in seeking compliance with
  OSHA 29 CFR 1910.119 regulations pertaining to
  the prevention and mitigation of accidents
  involving highly hazardous chemicals.

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ISA-SP84 Milestones cont.

• Two major ISA technical reports completed in 2005
  to illustrate and promote the proper application
  of the three-part series of standards
• ISA-TR84.00.04-2005 Part 1 Guideline on the
  Implementation of ANSI/ISA-84.00.01-2004 Parts
  1-3 (IEC 61511 Mod)
• ISA-TR84.00.04-2005 Part 2 Example
  Implementation of ANSI/ISA-84.00.01-2004 Parts
  1-3 (IEC 61511 Mod)
• Outstanding effort by ISA-SP84 Working Group 2
  led by Dr. Angela Summers

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ISA-SP84 Work in Progress

• ISA-TR 84.00.06 - Safety Fieldbus Design
  Considerations for Process Industry Sector
  Applications
• First committee ballot completed September 2006.
  Many comments received will be revised for a
  second ballot.
• ISA-SP84 Working Group 1 Bob Adamski

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ISA-SP84 Work in Progress cont.

• ISA-TR84.00.05 - The Application of
  ANSI/ISA-84.00.01-2004 Parts 1-3 (IEC 61511
  Modified) for Safety Instrumented Functions
  (SIFs) in Burner Management Systems.
• Target for first committee ballot December 2006.
• ISA-SP84 Working Group 3 Dennis Zetterberg

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ISA-SP84 Work in Progress cont.

• ISA-SP84 Working Group 6 Fire and Gas
• Spin-off of BMS Working Group.
• Meeting this week in Houston developing
  reliability model to address differences between
  preventive and mitigative instrumented functions.
• Leaders Mike Scott and Bob Seitz.

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ISA-SP84 Work in Progress cont.

• ISA-SP84 Working Group 4 Electro-Magnetic
  Compatibility (EMC) Issues for Safety
  Instrumented Systems.
• Collecting information on current industry
  practices.
• Leader Tim Layer

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ISA-SP84 Work in Progress cont.

• Update / Maintenance ISA-TR84.00.02-2002, Parts
  1-5.
• Safety Instrumented Functions (SIF) Safety
  Integrity Level (SIL) Evaluation Techniques.
• Working Group meeting this week in Houston.
• Leaders Angela Summers and Larry Suttinger

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ISA-SP84 Work in Progress cont.

• Update / Maintenance ISA-TR84.00.03-2002.
• Guidance for Testing of Process Sector Safety
  Instrumented Functions (SIF) implemented as or
  within Safety Instrumented Systems (SIS)
• Initial Working Group meeting this week in
  Houston
• Leader K. V. Gandhi

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ISA-SP84 Outreach

• Key technical leadership and expertise provided
  to international standards development most
  notably IEC 61508 and IEC 61511
• Close working relationship with ISA-SP91,
  Criticality Ranking for Instrumentation
• Chairman Richard Dunn
• Close working relationship with ISA Safety
  Technical Division

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We Value Your Input

• Questions on ISA-SP84?
• Ideas / Suggestions?
• To get involved, contact
• Charley Robinson, ISA Standards,
  crobinson_at_isa.org