8/12/2019 Process Safety Check List 2

1/2

PHASE I- Preliminary Review Process (continued)

In oxygen enriched atmosphere?

Explosive situations?

Are you mixing oxygen/air with flammables?

Has this been discussed with J. Wright, Process Safety Specialist?

Will you be handling flammable or combustible liquids? What flash points?

Lower explosive limits (LEL's)?

Will an exothermic reaction be involved?

Under abnormal conditions?

Are there any unusual chemical or physical properties of the materials involved?Environmental:

What will you do with your waste?

EPA permit required?

Have you discussed this with the HSE department?

Solid waste involved?

Where will you store your waste?

What special protection or procedures will be required in handling the waste?

Personnel training required? What do you plan to vent to the atmosphere?

o If so, how much per hour? per day?o Will this need to be treated or scrubbed before release?

Will you be handling toxic chemicals?

If so, which ones and in what quantities and threshold limit values (TLV's)?

What will be you handling procedures?

Personnel safety equipment required? (Task Hazard Assessment done?)

Personnel training?

Has this been discussed with the site Industrial Hygienist or the Safety Staff?

PHASE II-Piping and Instrumentation Diagram analysis

A detailed P&ID Analysis will be conducted during the Phase II review. Safety and operabilityrecommendations will be identified. If a PHA (HAZOP) is conducted, it will serve as the Phase II PSR.General:

Review the Phase I Checklist and data

Does the drawing conform to Engineering Preferred Practice Specification DP 49-2?

Are the correct drawing symbols used?

Does the P&ID representation of the process reflect the actual process?

Are the instrumentation and safety monitored circuits (SMCs) shown correct ly?

Are there any obvious mechanical hazards?

Do vessels indicate their size, material of construction, design pressure and temperature?

Are there any unique construction characteristics such as Autoclave, Hoke, quartz, etc.?

Is the MR number given?

Do all the lines, which terminate themselves on the P&ID drawing, indicate where they go withtext?

Do all the pumps show their capacity on the P&ID?

Are the feed chemicals indicated on the P&ID?

Are all the gas cylinders shown and indicated on the P&ID?Process:

Are there any obvious hazards involved in the chemistry being used?

Does this process mix air/oxygen with flammables?

Can air get in the system inadvertently?

8/12/2019 Process Safety Check List 2

2/2

Is the system adequately pressure protected with relief valves, rupture disks, manometerblowouts, etc.?

Do the relief devices on vessels correspond to the design pressure?

Do all relief devices have X numbers and indicate set pressure?

Are there any valve arrangements or connections which could lead to a hazardous situation?

Can any section of the lines be dead-ended or blocked in?