Chemical reactivity test

Perform chemical reactivity testing, including the analytical verification of reactants, catalyst, quenchers, initiators, and inhibitors. More details are provided in Appendix 2A of this chapter. 

Use chemical reactivity testing to identify and evaluate the hazards... 

Table 4.8 provides one summary of reactivity test methods and results. In the paragraphs that follow, brief descriptions of some chemical reactivity test methods are given, after HSE (2000). 

Chemical reactivity test data produced by employers or obtained from other sources (e.g., differential scanning calorimetry, thermogravimetric analysis, accelerating rate calorimetry). 

Carius sealed tube test, chemical reactivity tests, 88... 

Chemical reactivity risk. See Risk assessment Chemical reactivity tests, 84-90 decision point, 90 deflagration screening tests, 85,87 reaction calorimetry, 88-90 screening data interpretation, 85, 86 small-scale screening tests, 87-88 Chemical structure and bonds, hazards identification, 80, 82 CHETAH program (ASTM), 79,82 Clean Air Act Amendments (CAAA) of 1990, 174... 

Decision making, process risk management decisions, documentation, 105-106 Decision point, chemical reactivity tests, 90 Decommissioning, chemical reactivity hazard management, 25 Decomposition pressure test, chemical reactivity tests, 88... 

Deflagration screening tests, chemical reactivity test, 85, 87... 

Development stage, life cycle issues, 20-23 Deviations, risk assessment, 94-95 Differential scanning calorimetry, chemical reactivity tests, 87... 

APPENDIX G IDENTIFYING HAZARDS USING CHEMICAL REACTIVITY TESTING.135... 

The PSI element of both the OSHA PSM Standard and the EPA RMP regulation can be improved by requiring the inclusion of all existing information on chemical reactivity. Examples of such information are chemical reactivity test data, such as DSC, thermogravimetric analysis (TGA), or accelerating rate calorimetry and relevant incident reports from the plant, the corporation, industry, and government. OSHA and EPA should require the facility to consult such resources as Bretherick s Handbook of Reactive Chemical Hazards,Sax s Dangerous Properties of Industrial Materials, and computerized tools (e g., CHETAH, The Chemical Reactivity Work Sheet). 

APPENDIX G Identifying Hazards Using Chemical Reactivity Testing... 

Five of nine respondents to the CSB survey frequently use both screening and more sophisticated approaches, including adiabatic calorimetry, to determine the thermal stability or compatibility of process materials. Seven of nine respondents use screening alone for chemical reactivity testing. The most often used testing objectives are ... 

CD) J.W. Frazer K. Ernst, "Chemical Reactivity Testing of Explosives , Explosiv-stoffe 12, 4—9(1964) [The following tests are described a) Determination of NO,... 

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