Factors Related to the Environment

It is emphasized that while following the above procedure to determine whether a metal/environment combination is susceptible to corrosion, no information is provided on the rate of corrosion, the physical nature of the attack (i.e., uniformity of attack), the influence of corrosion products, or factors relating to the environment, such as fluid velocity and uniformity of fluid composition. 

An environmental factor This is another indirect factor, related to the environment in which employees operate. This could include improperly maintained eqmpment, rmsafe building design, or poor purchasing decisions. 

A number of factors relating to the molecular structure of an organic compound and its environment have an effect on the fluorescence quantum yield, which, as we have seen, is dependent on the relative rates of the competing processes that may occur from Si(v = 0). These molecular factors are given below. 

There are a number of factors that may affect the rate of this type of reaction. Some of these factors are inherent in the molecule itself, while others are external and so relate to the environment in which the reaction is performed. 

Norback D, Michel I, Widstrom J. Indoor air quality and personal factors related to the sick building syndrome. Scand J Work Environ Health 1990 16 121-8. 

Factors related to the fabrication parameters and/or end use conditions affect the dominant failure mechanism by altering the specimen itself. For example, (a) specimens manufactured by injection molding often manifest some anisotropy which affects their mechanical properties, (b) defects incorporated in specimens during processing and/or use can act as critical flaws that can cause or accelerate fracture, and (c) exposure to harsh environments (such as oxidizing molecules) during use can cause or accelerate fracture. 

The mobilisation of contaminants and their rate of release from a solid form or when contained within the solid structure of a soil matrix will depend on a number of specific factors relating to the soil matrix, the characteristics of the contaminants and the environment in which the soil is present. It is necessary to be able to estimate the concentration and/or flux of contaminants that will be released and to estimate the changes in concentration or flux over time. 

Two of the most important factors which control the solubility of chemical compounds are the pH and the redox potential of the environment in which the material is present. Many contaminants exhibit a sharp change in solubility over small changes in pH or redox potential (van der Sloot etal. 1997). For all leaching tests and assessments of environmental impact, it is important to identify the critical zone in the pH value or redox potential and how it relates to the environment in which the material is located or into which it will be placed and how the pH and redox potential of that environment may change with time. 

The factors related to the patient or to the environment which favour the reaction. 

The design of the compound for the majority of automotive components depends on a number of factors relating to the product environment. 

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