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    It should be noted, however, that slower reactions such as slow decomposition processes may also create serious hazards. Analyses of such reactions should be reviewed by those preparing MSDSs to gain an understanding of how such reactions can occur. The CSB and CCPS reports provide several examples of slow, oxygen-generating chemical reactions that may gradually produce a highly dangerous fuel-oxygen atmosphere, such as in a waste tank. Another example of a slow chemical reaction is with slow, endothelmic polymer decomposition reactions resulting in pressure build-up within enclosed tanks.

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    Well-known examples of sensitizers are toluene diisocyanate, nickel compounds, and poison ivy. Some of the health hazard definitions provide for an extremely precise testing procedure (e.g. , test species or weight range). This is because those test protocols had been codified in previous government regulations. However, other test methods have been developed and are acceptable for hazard determination. In view of this, Appendix A of the HCS indicates that if there are available scientific data that involve other animal species or test methods, they must also be evaluated to determine their applicability.

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    • The fatal injury rate was 3.5 per 100,000 full-time equivalent workers, also down from 3.6 in 2016.
    • In August 2019 Western Australia committed to join nearly every other State and Territory in implementing the harmonised Model WHS Act, Regulations and other subsidiary legislation.
    • As the number of service sector jobs has risen in developed countries, more and more jobs have become sedentary, presenting a different array of health problems than those associated with manufacturing and the primary sector.
    • Victoria has retained its own regime, although the Model WHS laws themselves drew heavily on the Victoria approach.
    • Note, 2001 statistics do not include death related to the September 11 terrorist attacks.

    While there are classes of chemicals that in themselves may be reactive, there are also stable chemicals which are not reactive but when combined may interact, resulting in an explosive reaction. Good sources for information about chemical interactions are Bretherick , Sax , and the U.S. Mixing incompatible materials may result in the formation of unstable/reactive materials; therefore, the literature search should document incompatible materials. In addition to discrete chemicals, it should be realized that certain dusts might be combustible and explosive, such as that produced by bakeries, sawmills, and in grain handling.

    The potential for decomposition reactions that might lead to production of an explosive substance should also be considered. The peroxide functional group (-O-O) is relatively unstable and most organic peroxides will spontaneously decompose at a slow rate. Some organic peroxides, however, are capable of very violent reactions with detonation at environmental temperatures keto pills, causing fires and explosions. Several organic peroxides are used in the plastics industry to initiate polymerization and serve as cross-linking agents. Recognizing an organic peroxide is quite simple – the presence of the peroxide group (-O-O) in its chemical structure.

    However, the characterization of the severity of the hazard is usually based upon fairly extensive laboratory testing. Examples of organic peroxides are benzoyl peroxide and allyl hydroperoxide.