Safety Scheduling

Safety scheduling is when a manager establishes time frames for the safety system steps. In introducing and maintaining a safety management system, a schedule should be determined for the introduction phase of the system, the training phase, as well as the follow-up and review of the results, successes, and failures of the system. 

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The principal resources required by a risk management program are money to fund activities such as external audits and equipment inspections, and the time of key pCTSonnel to participate in activities such as hazards analyses and the writing of operating procedures. The second of these is often the most critical because the key people are busy with many other activities, including operations, maintenance, and other types of project work. Hence, the process safety schedule will often be developed around the availability of these people. 

D21S2 is not the only standard that places limitations on acetone testing. Underwriters Laboratories Stanctod UL651 Standard for Safety Schedule 40 and 80 Rigid PVC Conduif states in Paragraph 8.2 ... 

Preventive maintenance includes inspection, servicing and adjustment with the objective of preventing breakdown of equipment. This is appropriate for highly critical equipment where the cost of failure is high, or where failure implies a significant negative impact on safety or the environment. This form of maintenance can be scheduled on a calendar basis (e.g. every six months) or on a service hour basis (e.g. every 5,000 running hours). 

Industrial soHd waste Inventory Maintenance Management scheduling Material safety data sheets... 

The project review process involves multiple steps that should be definea in management gmdelines (CCPS, 1993, pp. 57-61). The steps include (1) review pohcy, (2) review scheduling, (3) reviewtech-nique, (4) review team representation, (5) review documentation, (6) review follow-up, (7) review follow-up verification, and (8) review procedures change management. These steps define how a review, whether it be a safety review, environmental review, pre-start-up review, or whatever, is conducted and how closure of review aclion items is achieved. 

The technical package may specify a scope and frequency for periodic audits and performance criteria that could lead to changing the audit frequency. It may be a general safety and environmental performance audit or a special audit for items such as raw material storage and handling, quality control methods and documentation. The proprietary nature of a process or product or the complexity of the toll could be a reason to establish a more frequent audit schedule for certain tolls. Audits can also be conducted to follow-up on previously identified shortcomings to document that they were addressed properly. 

But the outlet nozzle size of the safety valve is 6 in. Schedule 40. Hence, 6 in., will be minimum line size. (This is normal practice.)... 

Reducing and eliminating hazards and their associated risks is the second major objective. Applying inherent safety principles early in the product/process development effort provides the greatest opportunity to achieve the objectives of the inherent safety review process for the project at hand. If these principles are applied late in the effort the results may have to be applied to the project after next as the schedule may not permit implementation of the results. 

Center for Chemical Process Safety (CCPS) (1997). [scheduled publication]. Guidelines for Selecting the Design Bases of Process Safety Systems. New York American Institute of Chemical Engineers. 

The HASP should describe how potential health and safety hazards at the work site are located, identified, and measured. A written schedule including inspections and walk-throughs conducted by designated individuals should be specified. 

Equipment used to process, store, or handle highly hazardous chemicals must be designed constructed, installed and maintained to minimize the risk of release. A systematic, scheduled, test and maintenance program is preferred over "breakdown" maintenance " that could compromise safety. Elements of a mechanical integrity program include 1) identification and categorization of equipment and instrumentation, 2) documentation of manufacturer data on mean time to failure, 3 ) test and inspection frequencies, 4) maintenance procedures, 5) training of maintenance personnel, 6) test criteria, and 7) documentation of test and inspection results. 

The confluence of sharply rising Operations and Maintenance (O M) costs. NRC requested Individual Plant Examinations (IPEs) and increased personal computer capabilities gave rise to the R R Workstation. Its uses and maintains-current PSA models and databases for individual plants to perform O M planning and scheduling, and uses the PSA in IPE models to identify plant design, procedure and operational vulnerabilities. The Risk and Reliability Workstation Alliance was organized by EPRI to support the R R Workshop in order to achieve O M cost reduction, plant productivity and safety enhancement through risk-based, user-friendly, windowed software louls (Table 3.6 8). The Alliance, initiated in 1992, includes 25 U.S. utilities and four international partners from Spain, France, Korea, and Mexico. SAIC is the prime contractor for the R R Workstation, with participation of five other PSA vendors. 

All safety equipment and systems should be scheduled for regular inspection and test. Nitrogen blanketing systems should be inspected at least weekly. It is not sufficient to check that the nitrogen is open to the tank. The atmosphere in the tank should be tested with a portable oxygen analyzer to make sure that the oxygen concentration is below 5%. 

These timeframes are guesstimates at this point, and are subject to change. Similarly, at each stage of the process there will be a number of activities that may affect overall scheduling. On completion of this process, we are confident that Company X will be well on its way toward achieving its goal of industry leadership in process safety management. 

You may be able to achieve some economies by linking the PSM baseline assessment with other, scheduled review programs in your company, e.g., annual safety reviews, compliance audits, etc. 

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