What if vs hazop

The lead instructor leader, facilitator along with the team that the organization tasks with the subject, instructs the brainstorming and raises several theoretical scenarios for discussion. Processes that have been identified as relevant are analysed in depth: the risk is examined and considered, the existing protection systems are checked, their level of effectiveness is examined and the residual risk is tested and in places where there is an unacceptable residual risk, additional protective measures are suggested and examined.

The instruction is escorted by an additional instructor from Hazmat, the role of whom is to document the discussion in a designated software, ensuring that all failure manners are reviewed and that each scenario is fully analysed.

At the end of discussions a report is produced. Engineering and Architecture. Production and supply chain of Chemicals and Hazardous Substances. Sample What-if Analysis Questions.

The team considers the list of What-if questions, one-by-one, to determine likely sources of errors. They then decide the probability of each error occurring and assess the consequences. Responsibilities are assigned for follow-up action s.

Consider adding a column to your What-if Analysis form to indicate the person or group responsible for each corrective action. Following is a list of sample What-if questions to get your group thinking in the right directions. These questions can be modified according to experiment or process.

Human errors occur regardless of training and experience. Human error factors may drive consideration of written SOPs, a decision for engineering controls, etc. The following questions concern utilities, which are key to the support of any experiment or process:. Consideration of failure of materials or components may result in decisions for additional controls or changes to higher rated or alternative types of materials and components.

This should be included since, despite best efforts with hazard reviews and training, incidents will occur. Engage with other members of the chemical safety community. Membership provides networking opportunities, access to career advancement tools, meeting discounts, and more.

Join the Division Renew Your Membership. Email the Safety team at safety acs. What is Safety Culture? Control Banding. What it is A technique using brainstorming to determine what can go wrong in specific scenarios and identify the resulting consequences.

Additionally, design documents, operational procedures, or maintenance procedures are essential information for the review team. If these documents are not available, the first recommendation for the review team becomes clear. Develop the supporting documentation! Effective reviews cannot be conducted without up-to-date reliable documentation.

An experienced team can provide an overview analysis, but nuances to specific issues such as interlocks, pressure relief valves, or code requirements are not likely to be found. Now that the team has had an opportunity to review the information package, the next step is conducting the analysis. A focused, energetic and knowledgeable facilitator can keep the review moving productively and effectively.

A scribe is usually assigned to take notes of the review. Recent advances in software as well as laptop computers can provide on-line data collection possibilities by the scribe. That is, as hazards are identified, judgments made, and responsibilities assigned, the scribe can input the data and agreements live!

Scheduling more than four hours at a time can result in the team members losing energy and eager to finish the analysis rather than probing deeper. Generally, in a well-designed system or well-operated system, the participants in the review will need to work hard to find major issues.

It is the job of the facilitator to keep the effort moving productively. These errors and failures can be considered during normal production operations, during construction, during maintenance activities, as well as during de-bugging situations.

The questions could address any of the following situations:. Experienced personnel are knowledgeable of past failures and likely sources of errors. For example, consider a chemical manufacturing process which includes the charging of a granular-like material from a gallon drum to a gallon mix vessel containing a highly caustic liquid.

Some typical questions that could be generated are shown in Figure C-2 for illustration purposes. Determining the answer to each question as it is generated creates the danger of closing too soon on all possible upsets. The facilitator needs to assess if the team has really looked at all of the possibilities before going to the next step of answering the questions. Break up the analysis into smaller pieces if there is danger of just developing questions and not gaining the value of having them fresh in mind to answer those questions.

Division: Chemical Ops. Granular powder is not freely flowing? Drum is mislabeled? Wrong powder in the drum? Drum hoist is not used? Two drums are added? Drum is misweighed? Drum hoist fails? Drum is corroded? Ventilation at mixing tank is not operating? Drop files here or.

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