Processing quality control

D. A. Kimball, Citrus Processing Quality Control and Technology, Van Nostrand Reiohold, New York, 1991. 

Historical DataBase Subsystem We have discussed the use of on-hne databases. An historical database is built similar to an on-line database. Unlike their on-line counterparts, the information stored in a historical database is not normally accessed directly by other subsystems for process control and monitoring. Periodic reports and longterm trends are generated based on the archived data. The reports are often used for long-term planning and system performance evaluations such as statistical process (quality) control. The trends may be used to detect process drifts or to compare process variations at different times. 

In-process quality control is the control exercised over starting materials and intermediates. Its importance stems from the opportunities that it provides for the examination of a product at the stages in its manufacture at which testing is most likely to provide the most meaningful information. The WHO Requirements and national authorities stipulate many in-process controls but manufacturers often perform tests in excess of those stipulated, especially sterility tests (Chapter 23) as, by so doing, they obtain assurance that production is proceeding normally and that the final product is likely to be satisfactory. Examples of in-process control abound but three of different types should suffice. 

Guide to Data Analysis and Quality Control Using CUSUM Techniques. CUSUM Methods for Process/Quality Control Using Measured Data , BS 5703-3 2003, British Standards Institute (BSI), London, UK, 2003. 

Non-Contact Capacitive Measuring System capacitive measuring principle Micro-Epsilon capaNCDT Series 620 development, testing, in-process quality-control... 

E. R. Ott and E. G. Schilling, Process Quality Control, McGraw-Hill, New York, 1990. 

Operating instructions for equipment (where necessary) In-process quality control program, including ... 

Ott, E. R. Process Quality Control Troubleshooting and Interpretation of Data. New York McGraw-Hill (1975). 

As citrus fruits and their products contribute substantially to the American diet and are consumed in great abundance, we believe the time is appropriate to review in detail some important nutritional and quality properties of this important fruit. Twenty-eight scientists joined with us to cover extensively subjects in the following areas nutrition and health quality as related to specific biochemical components effects of handling and processing quality control and evaluation regulatory implication and adulteration. 

Haseley, P., Oetjen, G.W. Equipment data, thermodynamic measurements and in-process quality control during freeze drying. PDA International Congress, pp. 139-150, Basel, 1998... 

M, manufacturing cost only (insect rearing, processing, quality control, packaging). 

Quality by Design is a systemic approach that applies the scientific method to the process. QbD theory contains components of management, statistics, psychology, and sociology. The FDA s new century has identified the QbD approach as its key component based on process quality control before industry end results [3,17]. 

Near IR (NIR) is a quick and non-destructive method for the determination of water in effervescent products. In addition, it is suitable for in-process quality control. Measurement of pH of the solution is often performed. The conditions are important for congruent results. 

QC activities in clinical research are manifold and comprise all activities undertaken by operational departments (such as clinical monitoring, project management, data management, etc.) to ensure that activities are performed in compliance with the trial protocol, SOPs and other procedure guides. These in-process quality controls are vital to the quality of the documents prepared (e.g. trial protocols, study reports) and the integrity of the trial conduct. 

Applications of NMR in process control, although not as popular as FT-IR and NIR, provide an alternative when the latter techniques fail. The advantages of low-field (10-60 MHz) low-resolution NMR in process control applications are its noninvasive nature and the lack of need for calibration procedures with feed or product, as it is tolerant to changes in process environment and feed quality. Process/quality control NMR applications are based on separation of the FID into separate responses from components with different T2S (Fig. 6). Longer in-stream analysis times, high... 

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