Provisional improvement notice

The power to stop work, even temporarily, and the power to issue provisional improvement notices was particularly controversial when first enacted employers feared that these powers would be abused. Research now shows, however, that provisional improvement notices have been used sparingly and that, in the majority of cases, when they are disputed by employers they are upheld by government inspectors. Moreover, the possibility that a provisional notice might be written is enough in many cases to get employers to take action at the request of a health and safety representative without the need for a notice to be formally issued (Powning 1992, pp. 15-16). 

In principle, there are two types of notice - one that seeks to improve the work system by comphance with some section of the legislation, while the other type is trsed to limit or prohibit an activity that is likely to give rise to imminent or serious harm. For example, the New Zealand Health and Safety in Employment Act provides for fonr types of notices, inclnding improvement notices and prohibition notices. A prohibition notice can be issned by an inspector and work ceases or nse of equipment stops until required steps are taken. In some jnrisdictions, there is provision for elected health and safety representatives to issne notices on a provisional basis. This apphes nntil an inspector can attend and either snpport or not snpport the notice. 

Intermediate products (e.g. fatty acids) can have a toxic effect (Fend, 1961). As a provisional explanation, we assume that the dissociated forms of the fatty acids no longer guarantee the passage of anions. The enhancement of assimilation by dialysis culture and specific growth inhibition by its dialyzable material, as noticed in a kerosene medium, were demonstrated also in the case of individual n-alkane, i.e. hexadecane or decane. These findings seem to indicate that the effect of dialysis culture on alkane assimilation is a fairly general phenomenon. From the evidence presented for the growth inhibition by the dialysable substance, it is likely that the improvement of hydrocarbon... 

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