Quality control QC

Fig. 9. Batch process for cast-composite polymer-based propellants. QC = quality control.

Project plans and a dedicated project manager are required to coordinate across-site support activities, e.g. project planning, engineering, process development, production, QC (quality control), etc. This is critically important if production scale equipment and operating areas need to be used during the transfer exercise, i.e. the impact on commercial manufacturing schedules. 

QA = quality assurance QC = quality control SQC = statistical quality control SPC = statistical process control CIM = computer-integrated manufacturing. 

PS-TsNHNH2, polystyrene-bound tosylhydrazine PS-NCO, polystyrene-bound isocyanate QC, quality control RPR, Rhone-Poulenc Rorer RT, room temperature TBAF, tetrabutylammonium fluoride TFA, trifluoroacetic acid TFP, tetrafluorophenol THF, tetrahydrofuran TMSN3, trimethylsilyl azide TOF, time of flight mass spectrometry TsNHNH2, p-toluenesulfonylhydrazine UDC, Ugi/DeBoc/Cyclize Wang, 4-(hydroxy-methyl)phenoxy polystyrene. 

Quality assurance refers to activities that demonstrate that a certain quality standard is being met. This includes the management process that implements and documents effective QC. Quality control refers to procedures that lead to statistical control of the different steps in the measurement process. So QC includes specific activities such as analyzing replicates, ensuring adequate extraction efficiency, and contamination control. 

Note CS Calibration standard, QC Quality control Reproduced from ref. [36] with permission from Elsevier... 

Confirm that all components are cleared for use, including approval from QA (Quality Analysis) or QC (Quality Control). 

FIGURE 8.8 The two possible cleavage mechanisms for the orthogonal linker system. The top mechanism illustrates the acid-chemical cleavage process used for quality control of library production. The bottom mechanism illustrates the photocleavage process used to release the synthetic compound for biological assay. (QC = quality control.)... 

There is no doubt that isothermal microcalorimetry has the potential to be very useful in studies of chemical degradation. The success will be greatest for solution-state reactions for which the reacting concentration is known, but even these can be limited by physical artifacts by, for example, the slow diffusion of oxygen into the liquid from the head space. The use of this technique for solid-state reactions is certainly not impossible, but is an area where great care is needed. The technique may therefore be used readily in a preformulation environment for solution systems, but is perhaps better applied in a QC (quality control) role for well-characterized solid-state processes. 

Joint Research Centre, Belgium QC Quality Control... 

QA—Quality Assurance QC—Quality Control RPN—risk priority number SD(s)—standard deviation (s)... 

SCR = Source Code Review DQ = Design Qualification REI = radio-frequency interference ESD = electrostatic discharge EMI = electromagnetic interference QC = quality control. 

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