Site Safety Index (SSI) Evaluation


Find out your SSI Level
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1.  
Your Name:
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2.  
Your E-mail:
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3.  
Company:
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4.  
Industry:
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SIS Installation and Commissioning
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5.  

Does your site do a plan that includes all activities required for installation and commissioning?

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6.  

Does your site installation and commissioning plan include a schedule for all activities and assign responsibility for each task?

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7.  

Do your commissioning activities include confirming and documenting all field devices are operational and calibrated?

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8.  

Do your commissioning activities include confirming logic solver and inputs/outputs are operational?

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9.  

Do your commissioning activities include confirming that diagnostic alarms are promptly received by the maintenance workstation?

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10.  

Do you have good documentation of all commissioning activities?

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SIS Safety Validation
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11.  

Does your SIS validation plan assign responsibility for each task?

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12.  

Do your validation activities include confirmation that the SIS is properly protected against cyber-security attacks?

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13.  

Do your validation activities confirm that all equipment is operating within environmental limits, as specified in the equipment safety manuals?

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14.  

Do your validation activities include testing that sensors, logic solver, and final elements perform in accordance with the safety requirement specification, including all redundant channels?

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15.  

Do your validation activities include a check of compatibility between process chemistry and materials of construction in process wetted devices?

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16.  

Do your validation activities verify that the bypass functions, start up overrides, and manual shutdown systems operate correctly?

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17.  

Do your validation activities include a check that accurate proof test procedures exist and include all necessary information including the proof-test intervals?

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18.  

Do your validation activities verify that diagnostic alarms from SIS devices are properly annunciated to repair personnel?

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19.  

Do you return all bypass functions and process isolation valves to their normal position and remove all force enables after the SIS validation and prior to the identification hazards being present?

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SIS Operation and Maintenance
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20.  

Do your operation and maintenance procedures include all actions which need to be carried out to maintain the “as designed” functional safety of the SIS (for example, adhering to proof-test intervals defined by the SIL determination)?

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21.  

Is SIS training done for maintenance personal and are these personnel evaluated for competency? 

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22.  

Do your operation and maintenance procedures include the information which needs to be maintained on device failures, proof test results, false trips, demand rates  and restore times on the SIS?

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23.  

Do your operation and maintenance procedures include procedures for fault diagnostics and repair after a failure in the SIS?

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24.  

Do your operation and maintenance procedures require instruments to be rebuilt or replaced before the end of their useful life?

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25.  

Do your operation and maintenance work tasks proceed only in accordance with the relevant procedures?

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26.  

Do you perform periodic proof-tests using the written procedure?

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27.  

Is your frequency of proof tests decided using the PFDavg calculation?

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28.  

Are proof tests done on schedule?

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29.  

Do you repair any deficiencies found during the proof testing in a safe and timely manner?

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30.  

Do you replace failed equipment with only certified or safety qualified devices?

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31.  

Do you maintain records of proof tests including "as found" results of the tests and inspections?

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SIS Modification
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32.  

Do you have procedures for modifications to the SIS?

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33.  

Do you maintain information for all changes to the SIS including a description of the change, reason for the change, and approvals required for each change?

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34.  

Do you maintain information for all changes to the SIS including an analysis of the impact of the modification activity on the SIS?

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35.  

Do you maintain information for all changes to the SIS including tests used to verify that the change was properly implemented and the SIS performs as required?

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36.  

Do you maintain information for all changes to the SIS including tests used to verify that the change has not adversely impacted parts of the SIS which were modified?

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SIS Decommissioning
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37.  

Do you have procedures in place for decommissioning a SIS?

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38.  

Do you execute an analysis of the impact on functional safety as a result of the decommissioned activity?