Standard assessment protocol

The protein-to-protein variation in color response was measured at 1000 pg/ml for each protein in duplicate using the standard tube protocol. Within each assay, the average net or blank corrected absorbance was determined for each protein. The average net absorbance for each protein was divided by the average net absorbance obtained with BSA and expressed as a ratio. The standard deviation (SD) and the coefficient of variation (CV) is presented for the fourteen proteins assayed on the three methods. By comparing the CV s. the relative degree of protein-to-protein variation to be expected with the three methods can be assessed. 

A chemical baseline for snow at Palmer Station was preliminarily assessed (67). Samples were collected on a sheet of clean polyethylene. Standard EPA protocols were strictly adhered to and clean polyethylene gloves were used throughout. Ionic composition in Br , inorganic and organic carbon, Ca, Cl", F , K, Mg, Na", NH4, NOj" and S04 was ascertained by means of IC and ETA-AAS. No particular wind direction appears to influence pH and ion concentration gradients. Concurrent aerosol and snowfall along with meteorological data would be necessary to substantiate preliminary assumptions on the chemical baseline. 

Dimensionality Tracking Mode Controlled System Dynamics Sensor-Display Compatibility Response Samphng Rates Divided-Attention Tasks Other Measures Standard Assessment Procedures Test and Experimental Protocols... 

Several standard test protocols for measurement of polymer biodegradation are presently available. Organizations which have published such tests include the American Society for Testing and Materials (ASTM), Ministry of International Trade and Industry (MITI) (Japan) [40] and the Organization for Economic Cooperation and Development (OECD) [41]. They are, however, for the most part deficient to the extent that they have no control over the nature of microbial inoculum used, or the possible preadaptation of the mixed populations to specific substrates, and over the adequate control of particle size of the substrate. The relevance of these factors to laboratory assessment of the biodegradabUity of synthetic polymers has been recently discussed [1]. Most of these test methods have been derived from tests first used with detergents [42], and are not always well-suited for solid polymer substrates. 

In patients with ILD, the low-dose high-resolution CT technique with a reduction of the miUiampere-second values to approximately 40 mAs is in our view a valuable alternative to the standard volumetric protocol when combined with the sequential HRCT technique. It allows for the assessment of... 

Threat assessment procedures are utilized when a threat is made toward another individual. However, when a threat of suicide is made, different procedures are typically established within a school district. Much like the threat assessment process, a district establishes a standard, systematic protocol for school personnel to follow in response to a student suicide threat. 

Microbial cells living in biofilms are much more difficult to eradicate or control than suspended cells. Yet the susceptibility of biofiim cells to antibiotics and industrial antimicrobial agents is rarely assessed. In part, this is due to convention and, in part, because standard testing protocols against suspended cultures... 

Any detailed assessment of lead in dentition as a useful indicator is confounded by the fact that the various relevant studies have not employed a standard sampling protocol. Some researchers have employed whole tooth or crowns (Pinchin et al, 1978 Steenhout and Pourtois, 1981 Delves et al, 1982 Ewers et al, 1982 Smith et al, 1983), while others have employed lead levels in regions of teeth, generally secondary (circumpulpal) dentine (Shapiro et al, 1973, 1975 Needleman et al, 1979 Grandjean et al, 1984). In most cases, lead levels in whole or dissected teeth have been used as such, but reporting of lead burden as a function of age has also been done. 

With a prescriptive approach to quality assessment, duplicate samples, blanks, standards, and spike recoveries are measured following a specific protocol. The result for each analysis is then compared with a single predetermined limit. If this limit is exceeded, an appropriate corrective action is taken. Prescriptive approaches to quality assurance are common for programs and laboratories subject to federal regulation. For example, the Food and Drug Administration (FDA) specifies quality assurance practices that must be followed by laboratories analyzing products regulated by the FDA. 

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