System safety program process flow

Figure 3.1 Typical system safety program process flow.

To maintain the production rate, product quahty, and plant safety requires a data acquisition and control system. This system consists of tenperature, pressure, liquid level, flow rate, and conposition sensors. Computers record data and may control the process. Modem chemical plants use program logic controllers (PLC) extensively. According to Valle-Riestra [20], instrumentation cost is about 15% of pinchased equipment cost for little automatic control, 30% for full automatic control, and 40% for computer control. 

One method for complying with OSHA mandates and one type of safety management system is to become an OSHA Voluntary Protection Program (VPP) member. Refer to Table 13.3 for a summary of what it takes to certify under the VPP process. Refer to Figure 13.4 for a flow diagram of the OSHA Voluntary Protection Program. This diagram summarizes the information as listed in Table 13.3 and help you to apply for and successful obtain VPP status. 

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