Reactive hazard evaluations

Use of reactive test data, including data from the reactive hazard evaluation. 

IChemE acknowledges that there is no standard procedure for evaluating chemical reaction hazards (Barton and Rogers, 1997 p. 120). The CSB survey further highlights the variety of approaches to reactive hazard evaluation companies rely to varying degrees on quantitative and qualitative evaluation methods. 

Most survey respondents indicated that they perform reactive hazard evaluation studies during specific life-cycle phases of a process or product. These phases include process development, commercial process design, periodic re-evaluation, and before proposed modifications. The protocol for hazard evaluation of reactive systems varies from company-to-company. At a minimum, all surveyed companies employ qualitative hazard evaluations.58... 

The reactive hazard evaluation protocol is nonprescriptive the type and quantity of testing is... 

Chemical reactivity is a very complex phenomenon, and there are no substitutes for education, training, experience and good judgment in evaluating the potential hazards. Therefore, it is essential that a reactive hazard evaluation be made on all processes on a periodic basis. These evaluations/reviews should be... 

Reactive Hazard Evaluations. Reactive hazard evaluations should be made on all new processes, and on all existing processes on a periodic basis. There is no substitute for experience, good judgment, and good data in evaluating potential hazards. Reviews should include ... 

Reactive hazard evaluations should be made on all new processes as well as existing processes on a periodic basis. There is no substitute for experience, good judgement, and good data when evaluating potential hazards. Reviews in process chemistry should include (a) reactions, (b) side reactions, (c) heat of reaction, (d) potential pressure buildup, and (e) intermediate streams. Reactive chemicals test data should be reviewed for evidence of flammability characteristics, exotherms, shock sensitivity, or other evidence of instability. Examine Planned operation of the process should be examined, especially for... 

Very volatile liquids Thermal stability and reactivity Hazards evaluation Materials that react with metals... 

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