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Verification of Completion

The main difficulties of Umbrella Sampling are the choice of the biasing umbrella potentials and the verification of complete sampling for each window. [Pg.142]

Program Element Initiation Date Completion Date Location of Activity Responsible Party Verification of Completion... [Pg.201]

The dominance property of contracts in Sec. 4.2 can be used to support the verification of completeness and external consistency as indicated in Theorem 2 (see [21] for proof). Since we consider the use of safety requirements in a context of contracts, external consistency does not only amount to showing that a set of safety requirements Gi,..., Gjy are not contradictory, but also not contradictory with respect to their corresponding assumptions A, ..., Ajv - We thus consider a set of safety requirements Gi,..., Gat with corresponding assumptions A, ..., An where Aj, Gj a contract G to be externally consistent if... [Pg.175]

It may be appropriate, based upon the hazards of the materials processed, for the client company to make a final site visit during the toll shutdown activities to review the toller s methods and completeness of process termination. This review could include termination status such as removal of all hazardous wastes and verification of associated documentation, and the adequate cleanup of equipment and the process area. [Pg.139]

In order to monitor the safe operation of the boiler a daily and weekly program of tests should be drawn up and log sheets completed as verification of the tests being carried out. Items checked should include ... [Pg.365]

This theoretical result is completely substantiated by experiment. Goldschmidt,31 from a study of crystal structure data, observed that the radius ratio is large for fluorite type crystals, and small for those of the rutile type, and concluded as an empirical rule that this ratio is the determining factor in the choice between these structures. Using Wasastjerna s radii he decided on 0.67 as the transition ratio. He also stated that this can be explained as due to anion contact for a radius ratio smaller than about 0.74. With our radii we are able to show an even more satisfactory verification of the theoretical limit. In Table XVII are given values of the radius ratio for a large number of compounds. It is seen that the max-... [Pg.276]

A more complete discussion of the kinetics of isocyanate crosslinking in the presence of humidity along with experimental verification of the rate equations used above has been given by van der Ven, et al. (18). Equations 38 and 39 can be integrated numerically for different values of isocyanate to hydroxy ratio and H. Plots of the consumption of hydroxy and isocyanate functionality are shown in Figure 2 for H-0 and H-0.66 assuming equal Initial Isocyanate and hydroxy levels. High humidity increases the rate of consumption of isocyanate and reduces the consumption of hydroxy. [Pg.201]

FieldNotes user verification can be conducted by following the SOP written by Astrix, which can be downloaded from the Astrix Web site. The SOP contains a script that is typed into the computer system. If the printout matches the SOP script, then verification is complete. A record of this must be placed in the facility archive. This verification process takes 1 h or less. For FieldNotes, calculations are not verified at the field site since the manufacturer feels that the software developer and the sponsors have performed adequate validation of these calculations previously. This may, therefore, require a visit to the sponsor or to the manufacturer to confirm that this important step of the validation process has been completed and is adequately documented. By following the Astrix SOP, the user is simply ensuring that the program operates on their system(s). The SOP script must be typed in exactly as written in order to confirm the printout accuracy. QA must ensure that the verification documentation is properly archived. Just as with any other SOP, this SOP must be approved in writing by field site management to comply with GLP. [Pg.1050]

The theoretical approach involved the derivation of a kinetic model based upon the chiral reaction mechanism proposed by Halpem (3), Brown (4) and Landis (3, 5). Major and minor manifolds were included in this reaction model. The minor manifold produces the desired enantiomer while the major manifold produces the undesired enantiomer. Since the EP in our synthesis was over 99%, the major manifold was neglected to reduce the complexity of the kinetic model. In addition, we made three modifications to the original Halpem-Brown-Landis mechanism. First, precatalyst is used instead of active catalyst in om synthesis. The conversion of precatalyst to the active catalyst is assumed to be irreversible, and a complete conversion of precatalyst to active catalyst is assumed in the kinetic model. Second, the coordination step is considered to be irreversible because the ratio of the forward to the reverse reaction rate constant is high (3). Third, the product release step is assumed to be significantly faster than the solvent insertion step hence, the product release step is not considered in our model. With these modifications the product formation rate was predicted by using the Bodenstein approximation. Three possible cases for reaction rate control were derived and experimental data were used for verification of the model. [Pg.28]

With respect to method application, once validation has been satisfactorily completed, there is little question that use of the analytical method in worker safety and re-entry studies falls under the full requirements of the GLP Standards. In addition, there should be an adequate level of quality control measurements taken in conjunction with the specimens so as to provide for a meaningful assessment of accuracy and precision, as well as verification of freedom from artifactual interferences. Along with these measurements there needs to be reasonably rigid data acceptance criteria in place (usually established during validation) which are consistently applied during the course of the specimen analytical phase of the study. [Pg.159]

Figure 12.3. Benchmark of peer-reviewed academic reports of organic semiconductor device field-effect mobility versus time of report. All data points are for spin-coated organic semiconducting transistors. Solid points are derived from the benchmark study completed in 2002 by Brazis and Dyrc at Motorola (unpublished). The curve is a calculated estimation, based on these data, of what the expected mobility values will be in the future. The open points are data derived in 2005 from the public journals for verification of the 2002 prediction.6 38... [Pg.382]

The experimental verification of the adsorption equation is comparatively simple, apart from certain experimental difficulties. Solutions of different known concentrations are prepared and equal amounts of adsorbent are placed in equal volumes of these solutions. Agitation of some sort is generally necessaiy to ensure complete adsorption. When equilibrium has been reached, the concentrations of the various solutions are again determined and represent, of course, the end or equilibrium concentrations, viz., the values of C in the formula. The differences between these and the original concentrations are... [Pg.54]

Most hydrocarbon facility process areas and high volume storage areas have standardized on a minimum supply or availability of four hours of firewater for the WCCE. The performance of risk analysis may reveal the level of fire water protection may be more or less than this requirement. Once a detailed design is completed on a facility or if a verification of existing water demands is needed, a simple tabular calculation of firewater requirements can be made. This table can be used to document spray density requirements, duration levels, code requirements and other features. Table 23 provides and example of arrangement to document such information. [Pg.205]

The reader can see now that experimental conditions are progressing in such a way that would allow for verifications of the quantum theories of solvent effects. The important theoretical fact is the possibility of recasting the standard theory of solvent effects, based upon classical statistical mechanics, into a more complete quantum mechanical approach. [Pg.311]

The owner s Inspector is responsible to the owner to verify that all required examinations, inspections, and testing are complete. The owner s Inspector verifies that all required certifications and records have been completed. Also, the owner s Inspector is responsible for verification of the construction organization s quality systems program implementation. [Pg.14]

It will readily be seen in our series of w-fluorocarboxylic acids, that when n is odd, / -oxidation would yield the toxic fluoro-acetic acid, whereas when n is even, the compound would presumably be oxidized only as far as the non-toxic yff-fluoro-propionic acid.1 The pharmacological results obtained are in complete accord with this hypothesis, and provide verification, of a kind not hitherto achieved, of the process of / -oxidation in the living animal body. However, Weinhouse, Medes and Floyd2 have inoculated rat-liver slices with one or two fatty acids containing isotopic carbon, and have obtained some evidence for a process of /7-oxidation. [Pg.166]

With the plant interview information, verification of the data, and the completion of the simple calculations, an experienced troubleshooter will develop a set of hypotheses for the root cause of the defect. After the hypotheses are established, a series of experiments need to be developed that accept or reject the hypotheses. Once a hypothesis is accepted via experimentation, then the next step is to develop a technical solution to remove the defect. Often more than one technical solution Is possible. The best technical solution will depend on the cost and time to implement the solution, machine owner acceptance, and the risk associated with the modified process. An accepted hypothesis must drive the technical solution. If a hypothesis is not accepted prior to developing a technical solution, then the troubleshooter may be working on the wrong problem and the defect may not be eliminated from the process. [Pg.411]

The verification of the measurement method is carried out in two steps the first step is to make sure, as well as possible, that the individual measuring devices work according to their specification and the second is to verify the complete method. Paper III describes all the verification methods used to test the accuracy of the measuring devices. [Pg.33]

The primary consideration of a clinical investigation of a device is assessment verification of the manufacturer s claims for the technical performance of the device. Safety considerations are, nevertheless, relevant in that the clinical investigation should determine and assess any undesirable adverse effects, but the main thrust of the clinical evaluation, and in particular of the conformity assessment by a notified body or the manufacturer to permit marketing, is on technical performance rather than a complete evaluation of safety. It is an essential requirement for marketed devices that [A]ny undesirable side-effect must constitute an acceptable risk when weighed against the performances intended. ... [Pg.546]

This chapter has shown many examples of the use of CALPHAD methods, ranging from an unusual application in a binary system, through complex equilibrium calculations to calculations for 10-component alloy systems. In all cases the use of CALPHAD methods has enhanced the understanding of processes, clearly defined alloy behaviour and provided vital information for other models, etc. It is also clear that equilibrium calculations can be used in many different areas and under a surprising number of different conditions. For numerous reasons, modelling will never completely replace experimental measurement. However, die quantitative verification of the accuracy of CALPHAD calculations now means that they can be seriously considered as an information source which can be used as an alternative to experimental measurement in a number of areas and can also enhance interpretation of experimental results. [Pg.419]

Figure 5.1. Verification of Eqs. (5.1) and (5.2) by means of Mulliken charges deduced from STO-3G calculations involving complete optimizations of geometry and orbital exponents. The net charge q is of (5.1) for the lower line and qa of Eq. (5.2) for R—H [44]. Figure 5.1. Verification of Eqs. (5.1) and (5.2) by means of Mulliken charges deduced from STO-3G calculations involving complete optimizations of geometry and orbital exponents. The net charge q is of (5.1) for the lower line and qa of Eq. (5.2) for R—H [44].
Equipment should be examined immediately upon arrival. Verification of constmction procedures List of procedures should be established and reviewed. Construction completion... [Pg.211]

Initial work on the reduction reaction involved a study of the completeness of the reaction and verification of the reduction product, benzidine. The presence of benzidine in the reduced dye sample was confirmed by gas chromatographic/ mass spectrometric analysis. In order to determine the completeness of the dye-reduction reaction, the reduction of... [Pg.25]

Fit the purpose calibration. It is common sense to check instrument performance each day, and GLP requirements simply formalize the performance and documentation of these checks. On the other hand, it is also important to use the right test (full calibration, verification, system suitability test, or instrument and method validation) to verify the performance and to avoid needlessly lengthy procedures. As already discussed (see Sections 13.2.3 and 13.3.1), it is not always necessary to perform a MS full calibration every day. For example, if a particular MS is used only to record complete full-scan mass spectra, a daily calibration or verification of the calibration of the m/z ratio scale is required. However, in the case where a MS is coupled with an LC and utilized primarily for the analysis of one or more analytes in the selected ion monitoring (SIM) mode, it does not always require a daily verification of the calibration. In this specific case it is quite common in LC-MS and LC-MS/MS applications to test only the following performance parameters (a) sensitivity, (b) system precision,... [Pg.217]


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See also in sourсe #XX -- [ Pg.77 ]




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