Environmental conditions, establishment

This requirement hides an important provision. It not only applies to inspection, measuring, and test equipment but to the measurements that are performed with that equipment. Anywhere you intend performing product verification or monitoring processes you need to ensure that the environmental conditions are suitable. By environmental conditions is meant the temperature, pressure, humidity, vibration, lighting, cleanliness, dust, acoustic noise, etc. of the area in which such measurements are carried out. To avoid having to specify the conditions each time, you need to establish the ambient conditions and write this into your procedures. If anything other than ambient conditions prevail, you may need to assess whether the measuring devices will perform adequately in these conditions. If you need to discriminate between types of equipment, the ones most suitable should be specified in the verification procedures. 

Once the performance and environmental conditions have been defined, the selection of a suitable material can be made, and this in turn can be followed, if necessary, with the necessary engineering calculations to establish strength requirements. The basic data needed for calculations have to be collected and have to pertain to the specific grade of the selected material. The pertinent information required for making determinations for longevity of the product and obtaining a general concept of the character and behavior of the selected material should be supplied by the manufacturer of the raw material and/or obtained in-house or via a contractor. 

Work environment - Establish hygiene, clothing and environmental conditions appropriate to operations... 

After the four ranks for levels of risk for fire, instability, toxicity and reactivity are established, other ranks will appear - dedicated to the operators involved (are they able to cope with potential dangers ), the peculiarities involved in setting up the apparatus (detecting weak points eg), effect of environmental conditions (lighting, supervision etc), and any rank likely to be involved in the globai security of the process. 

Under favorable environmental conditions, a chemical equilibrium is established between a corroded surface layer and its surroundings, which may lead to the preservation of the bulk of copper thus ancient objects made... 

A thorough understanding of the hydration profile for a solid forming a crystal hydrate is important for several reasons. First, since an anhydrate and hydrate(s) are distinct thermodynamic species, they will have different physical-chemical properties (e.g., solubility) that may affect bioavailability. Second, a desired hydrate species can be formed and used (and retained) simply by controlling the desired, established environmental conditions. Third, since significant quantities of water can be sorbed/liberated as a hydrate becomes hydrated/dehydrated, the physical-chemical properties of the immediate system (including other nearby solids) can be markedly affected. 

Most of today s practices are based on empirical data. Further investigation into the mechanism of herbicidal action is of fundamental importance in establishing the use of herbicides on a sound basis. More study into the synergistic effects of combining various chemicals is needed, as well as studies on methods of formulation, optimum quantities, times of application, and the influence of environmental conditions on the herbicidal action. Secondary effects, such as the reported tainting of coffee from 2,4-D deserve further inquiry. 

The precise infectious dose has not been established. It probably ranges from 10 to 10 cfu per g and depends on the environmental conditions and strain properties. The SE concentration of Ing per g of contaminated food is... 

The establishment of equilibrium takes time. If environmental conditions change faster than equilibrium can be attained, deviations from NAECs result. For example, water... 

Alpine waters are sensitive ecosystems with unique features and resources. Extreme environmental conditions (altitude, gradient, low nutrients, duration of snow cover) shape special habitats that are only suitable for highly-adapted fishes. Only cold stenothermic species can inhabit Alpine waters. During spawning and the period of egg development, water temperature is low and can reach 0°C. Therefore, only a few of the native fishes were able to colonize and inhabit Alpine waters. In the last decades, non-native cold water resistant fish appeared in many Alpine waters. Nonnative species have inhabited alpine lakes since the late 19th century Salvelinus namaycush were stocked in 1886 in small alpine lakes in the Swiss Alps [92]) and started to reproduce in many lakes. Over the last decades in many Alpine streams, non-native, cold stenothermic species have established self-reproducing populations and appear well-adapted to the harsh environmental conditions. 

These remarkably elongated forms, which are not expected from the structure, have their origins in the strong anisotropy involved in either environmental conditions or in growth sites. Many models have been proposed as possible growth mechanisms of whiskers, but we refer to the following as a well established example. 

Protein is utilized in many foods for the particular characteristics that it contributes to the final product (1 ). In order for protein products to maintain or enhance the quality and acceptability of a food, the protein ingredients should possess certain functional properties that are compatible with the other ingredients and environmental conditions of the food system. Consequently, an important aspect of the development of new protein additives and their incorporation into food systems is the establishment of their functional properties. Functional properties of proteins are physicochemical properties through which they contribute to the characteristics of food. Study of functionality should provide information as to how a protein additive will perform in a food system (, A). These properties are... 

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