Specificity levels

Effluent Guidelines and Standards. The Clean Water Act requires specific levels of control for dischargers. These are outlined in the Effluent Guidelines and Standards for various industrial categories. These standards limit the discharge of pollutants, usually in terms of a unit weight of pollutant per unit of either product or raw material, rather than a concentration in the discharge stream, in order to eliminate the use of dilution to meet limits. 

The water is then pumped through series operated sand filters, which provide the final stage of suspended solids removal and protect the garnualr activated carbon (GAC) filters from particulate contamination. Series operated GAC filters are then used to remove the dissolved creosote and pesticides from the water. To achieve compliance with specifications levels, water should be sampled and analyzed after leaving the first GAC filter. The second GAC filter normally serves as a guard bed. 

Clearance samples Samples taken following a lead, asbestos, or other removal action, which must indicate the contaminant concentration to be at or below a specific level before the area can be cleared for normal occupation and work activities. 

With heat exchangers, cleaning should be considered as an option when the efficiency has fallen off to some specific level e.g. a terminal temperature difference. With boilers, unless there has been some occurrence which may be alleviated by a particular clean, periodic cleaning to pre-empt corrosion by limiting deposit thickness should be considered... 

An application of this instrument is illustrated in the study of color change in dehydrated carrots with storage at different temperatures. Typical results are given in Table IY. The measurements were made on the dry material packed level in a tray designed to fit at a specific level in the instrument. The instrument is mounted so that the tray rests horizontally and no cover glass is then necessary to hold the sample in place. 

Along with a disturbance in fluid volume (eg, loss of plasma, blood, or water) or a need for providing parenteral nutrition with the previously discussed solutions, an electrolyte imbalance may exist. An electrolyte is an electrically charged substance essential to the normal functioning of all cells. Electrolytes circulate in the blood at specific levels where they are available for use when needed by the cells. An electrolyte imbalance occurs when the concentration of an electrolyte in the blood is either too high or too low. In some instances, an electrolyte imbalance may be present without an appreciable disturbance in fluid balance For example, a patient taking a diuretic is able to maintain fluid balance by an adequate oral intake of water, which... 

It is, therefore, perfectly feasible to consider that phytochemicals, at the levels present in foods, are capable of showing a similar dose-response. But, in assessing the benefit-risk associated with intake of a specific level in a food, it is important to establish the responses at doses that are below, or slightly above, the plateau region of the dose-response curve. 

Aggregate risk is used to measure the collective risk to people in a facility who could be exposed to an event or events. It indicates the frequency that a specified number of people will suffer a specific level of harm (e.g., death). Just as is the case with societal risk, aggregate risk can be expressed in terms of the frequency distribution of multiple-casualty events. 

Conversely, used oil that meets all specification levels, which is known as on-specification used oil, is not subject to any restrictions when burned for energy recovery. In fact, on-specification used oil is comparable to product fuel in terms of regulation. Once the specification determination is made, and certain recordkeeping requirements are complied with, the on-specification used oil is no longer subject to used oil management standards. 

Tables I and II present the results of the Work Group discussions for the screening and site-specific level models, respectively. The assessment in these tables is based on a ranking scale between 0 and 100 0 indicates situations where no testing has been attempted and 100 identifies areas where extensive testing has been completed with sufficient post-audits to validate the predictive capability of relevant models. The scores can also be interpreted to mean the extent to which additional field testing would improve our understanding of how well the models represent natural systems. It is important to note that the scores do not indicate model accuracy per se they show the degree to which current field testing has been able to identify or estimate model accuracy.

The application of screening methods requires that proper reference samples are available. These must contain the analyte exactly at or close to the specification level. Such reference samples have to be verified by quantitative analysis using reference methods. 

The health effects resulting from longterm exposure of humans to alr containing specific levels of... 

Although the above classes of raw materials are the most widely used, depending on the precursor chemical approach and desire for a specific level... 

Schecter, A., et al. Congener-specific levels of dioxins anddibenzofuransinU.S. food and estimated daily dioxin equivalent intake, Environ. Health Pperspect., 102, 962, 1994. 

ADDITION OF MASS (WATER) AND ENERGY (HEAT) MUST BE BALLANCED AT SPECIFIC LEVELS (OUTLET AIR TEMP) FOR PROPER GRANULATION... 

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