Negligible hazard

Benzoyl peroxide as a pure solid is classified as a deflagration hazard. When it is a solid containing about 30% water it is an intermediate fire hazard. As a paste (50% peroxide) it is a low fire or negligible hazard. See reference 18 for a definition of hazard classifications. Benzoyl peroxide containing 50% water will be purchased. It should be stored in a separate cool area, since all peroxides have short half-lives. 

Minimal disposal problems (negligible hazardous wastes). 

C. Neutron-Induced Activity. If nuclei capture neutrons when exposed to neutron radiation, they will, as a rule, become radioactive and then decay by emission of beta and gamma radiation over an extended period of time. Neutrons emitted as part of the initial nuclear radiation will cause activation of the weapon residues and environmental material, such as soil, air, and water. For example, a small area around ground zero may become hazardous as a result of exposure of the minerals in the soil to initial neutron radiation, due principally to neutron capture by sodium, manganese, aluminum, and silicon in the soil. This is a negligible hazard because of the limited area involved. 

Figure 10.1 Distribution of the 64 most used traditional solvents in 5 health hazard eategories ranging from negligible hazard to very high hazard.

Level 0 corresponds to negligible hazard. Level 4 indicates maximum hazard. Predicted values. Health properties under evaluation. 

Alongside the interventions on sfiuctural members, both repair and localized strengthening for seismic protection and operating loads, the guidelines also describe those interventions on non-sfiuctural members, namely, infills, partitions that, for their same weight and position, can represent a non-negligible hazard for people safety, even in case of structures with no relevant damage. 

Most industries approach this step in the same way. However, how they differentiate among catastrophic, critical, minor, and negligible hazards may vary. You will need to modify the definitions to fit the particular problem. What is important is that these definitions are determined before work begins. A rule-of-thumb definition for each is the following ... 

Despite serious damage to the plant, the release of radioactive material was relatively small and presented a negligible hazard to the public. Based on the linearity hypothesis of radiation damage, the total number of radiation-induced cancer deaths likely to result from the release was estimated as 0.7. In practical terms, this means that the number of deaths will be zero or almost zero even in the unlikely event that a few radiation-related deaths were to occur, the number would be far below that which could be detected statistically in view of the normal cancer mortality rate. 

Negligible - hazard will not result in serious injury or illness, remote possibility of damage beyond minor first aid case. 4... 

A negligible hazard is a hazard that has a Category IV (Negligible) severity level, as defined by the hazard severity criteria in MIL-STD-882. 

Like peroxymonosulfuric acid, the above salt mixture is a powerful oxidant with a wide range of application unlike peroxymonosulfuric acid the mixture can be stored without appreciable loss of active oxygen and handled with negligible hazard to the user.— E Dodecyl mercaptan shaken 30 min. with an... 

Other sources of hazard arise from the handling of such chemicals as concentrated acids, alkalis, metallic sodium and bromine, and in working with such extremely poisonous substances as sodium and potassium cyanides. The special precautions to be observed will be indicated, where necessary, in the experiments in which the substances are employed, and will also be supplied by the demonstrator. The exercise of obvious precautions and cautious handling will in most cases reduce the danger to almost negligible proportions. Thus, if concentrated sulphuric acid should be accidentally spilled, it should be immediately washed with a liberal quantity of water or of a solution of a mild alkali. 

On the basis of these differences in species response it was concluded that phthalates do not pose a significant health hazard to humans. This view is home out by the EU Commission decision of July 25, 1990 which states that DEHP shall not be classified or labeled as a carcinogenic or an irritant substance (42). This has been reaffirmed in a comprehensive review (43) which concludes that "peroxisome proliferators constitute a discrete class of nongenotoxic rodent hepatocarcinogens and that the relevance of thek hepatocarcinogenic effects for human hazard assessment is considered to be negligible."... 

The process related to the paint shop does not impose a significant pollution load on the environment compared to many other industrial activities. It is, however, essential that all possible aspects of environmental pollution by wastewater, environmental hydrology, environmental hydraulics and pneumatics, air, solid waste, noise and hazardous wastes etc. are reviewed to control any kind of pollution within the prescribed limits. Otherwise subsequent tragedies, if caused by environmental negligence in the industrial processes, may lead to the formation of stricter environmental laws. 

ACBs were the first to be produced commercially. They are simple to operate and cause no fire hazards. But at atmospheric pressure, they possess a low dielectric strength and are therefore normally manufactured only in low voltages. Air has less contamination and therefore these breakers require negligible maintenance, compared to oil. They require no contact cleaning. Since there is a limit to producing these breakers for HT systems, their normal application is for LT systems alone, where they... 

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