Danger, definition

EXTREMELY ELAMMABLE (Where the substance or preparation falls within the definition given in Notes 3c) 9. DANGEROUS LOR THE ENVIRONMENT in combination with risk phrases 10 50... 

SPECIAL WASTE Controlled waste which is subject to special regulations regarding its control and disposal because of its difficult or dangerous characteristics. The UK definition of special waste is similar, but not identical, to the EC s hazardous waste. 

Based on the above definition, if tlie hazard rate is tlie rate at wliicti "dangerous incidents occur, tlicn it should not occur more often tlimi ... 

It emphasises the need to research quantitative evaluation risk models and thus to provide for the reader means to define a level of danger, in a rigorous fashion, taking into account in his own way work already carried out in this domain. The model proposed ought to be considered as a route and a clue to a way of thinking and not necessarily as definitive. 

Temperature, shock, shockwaves, friction and light may be the physical agency of instability. Unsaturated organic substances can sometimes undergo violent chemical transformations under the influence of some of these but do not come within the above definition. In these specific cases, dangerous chemical reactions, which often involve catalytic impurities, are the cause and are treated in chapter 4 as dangerous reactions . 

The effect of temperature on the mechanical properties has definite place in specification of a material for any particular application. Some materials become dangerously brittle under arctic conditions, and all metals exhibit at elevated temperatures a phenomenon called creep. 

A sample of hops which had been treated with tetraethyl pyrophosphate showed a negative chemical analysis. The plant material was also extracted and the extract added to the drinking water of test animals and sensitive insects. The animals and insects that drank this treated water for several days showed no reaction. With the sensitive insects it would have been possible to detect even a few parts per million. In addition, there have been extensive commercial field applications of the chemical in dust and spray form to crops such as apples, pears, grapes, celery, broccoli, Brussels sprouts, and others up to within a few days of harvest there has been no detectable poison residue on any of the crops. The lack of poison residue with use of tetraethyl pyrophosphate is due to the fact that it hydrolyzes within a few hours of application, breaking down into transient nonresidual and nonpoisonous chemicals. Thus it is possible to use tetraethyl pyrophosphate well up to harvest time of food products without danger of residual poison on crops. The fact that the chemical is used in extremely small amounts is a definite advantage in respect to freedom from poison residue. 

Whenever a drug is administered by an extra-vascular route, there is a danger that part of the dose may not reach the blood (i.e., absorption may not be complete). When the intravenous route is used, the drug is placed directly in the blood therefore an IV injection is, by definition, 100% absorbed. The absolute bioavailability of an extravascular dosage form is defined relative to an IV injection. If IV data are not available, the relative bioavailability may be defined relative to a standard dosage form. For example, the bioavailability of a tablet may be defined relative to an oral solution of the drug. 

Shredded circuit boards. Circuit boards are metal boards that hold computer chips, thermostats, batteries, and other electronic components. Circuit boards can be found in computers, televisions, radios, and other electronic equipment. When this equipment is thrown away, these boards can be removed and recycled. Whole circuit boards meet the definition of scrap metal, and are therefore exempt from hazardous waste regulation when recycled. On the other hand, some recycling processes involve shredding the board. Such shredded boards do not meet the exclusion for recycled scrap metal. In order to facilitate the recycling of such materials, U.S. EPA excluded recycled shredded circuit boards from the definition of solid waste, provided that they are stored in containers sufficient to prevent release to the environment, and are free of potentially dangerous components, such as mercury switches, mercury relays, nickel-cadmium batteries, and lithium batteries. 

Sohotra Sarkar I never thought I would ever be in a position to defend Dennett, particularly Darwin s Dangerous Idea book, but I do think you are being unfair to him. I mean, what he did mean by bland reductionism primarily is some kind of physicalism that nobody is going to deny, and that s all he meant by that. And then what you are presenting here as definitions are statements he makes, and those are not things that he calls definitions. 

Definition Webster s defines intrinsic as "naturally, essentially, or inherently" and further defines safe as "free from damage, danger, or injury unable to cause trouble or damage" (2). From these definitions, a definition of intrinsically safe can be derived to mean inherently and naturally unable to cause trouble, damage, or injury. 

There is also a certain amount of statistical information available on the failures of process system components. Arulanantham and Lees (1981) have studied pressure vessel and fired heater failures in process plants such as olefins plants. They define failure as a condition in which a crack, leak or other defect has developed in the equipment to the extent that repair or replacement is required, a definition which includes some of the potentially dangerous as well as all catastrophic failures. The failure rates of equipment are related to some extent to the safety of process items. If a piece of equipment has a long history of failures, it may cause safety problems in the future. Therefore it would be better to consider another equipment instead. It should be remembered that all reliability or failure information does not express safety directly, since all failures are not dangerous and not all accidents are due to failures of equipment. 

While some studies suggest that these phones operating via microwaves are safe, others suggest that they are quite dangerous. In conclusion, whereas microwave ovens are definitively safe (if used correctly), many medical reports now suggest we try not to communicate via mobile phones too frequently. 

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