Factors affecting choice

What, then, constitutes an appropriate solvent for green chemistry Fundamentally, it must be a solvent, which allows completion of the task, but in an environmentally conscious manner. Environmental toxicity is a key factor affecting choice of solvents. These chemicals should be minimally toxic to human health and the environment, and should not contribute to pollution (DeVito, 1996a). The considerations for what constitutes a safe solvent might be summarized as follows ... 

The following is a simplified summary of the main features of the technique, factors affecting choice of isotopes and the experimental conditions, and the interpretation of the results. Readers requiring more detailed or rigorous treatments should consult specialist literature, such as References 1-3. 

Current research at The University of Tennessee In protective apparel for pesticide applicators has Investigated decontamination, penetration and user preference for protective apparel. The decontamination studies found pesticides behaved similarly to soil removal, with oily based soils being more difficult to remove from synthetic fabrics and particulate soil being more difficult to remove from woven natural fabrics. Initial studies on the effect of fabric finishes on pesticide penetration found a fluorocarbon finish was most effective. There was, however, an Increase in penetration with Increased launderings of the finished fabric. In a survey of user preference of available garments, cost was the predominant factor affecting choice, ranking above either safety or comfort. 

Table III. Factors Affecting Choice of Food-grade...

TYPES OF COMMINUTION EQUIPMENT 12.4.1 Factors Affecting Choice of Machine... 

Thick vanes can be difficult to bend and fabricate into a final vane assembly. Vanes should be kept as thin as is practical consistent with their intended service. The reduction in flow area coupled with competing considerations of corrosion, erosion and intended service life are the main factors affecting choice of vane thickness. Most vanes in commercial service will have a thickness of 2 to lOrmn. If the vanes are cast, and erosion is a concern, the vane thickness may be intentionally increased in some areas to better withstand erosive attack. 

Table 4 Factors Affecting Choice of Antibody Format...

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