Production Process Control

Since unspent calcium carbide is what causes the slag to be classified as reactive, a logical method of eliminating the hazardous characteristic would be to control the process better in order to completely react the calcium carbide with the sulfur in the metal. 

Two problems arise. First, the amount of sulfur in the scrap metal varies widely, so the metallurgist never knows exactly what dose is needed to just use up the calcium carbide. Second, there is some inherent inefficiency in contacting the sulfur with the calcium carbide, and some metallurgists contend that an overdose will always be necessary, even if one could predict stoichiometrically exactly how much calcium carbide was needed to reach a desired sulfur content. 

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Extraction of antioxidants in polypropylene production. Process control. 

Lippert, J.L. Switalski, S.C., Uncalibrated in-line Raman data as a lower cost process-consistency tool for a multi-product process control presented at IFPAC 2004, Arlington, VA, Jan. 12-15, 2004. 

The latter capability is valuable for production process control, since a thickness measurement can be completed every 5 seconds. As noted earlier, there is no simple way to evaluate the thickness of such films. 

Microorganism screening and production, process control logic, reaction parameters, coupled production... 

Commercial products process control and electronics, plastic products, low-density polyethylene film, pollution abatement systems, synthetic turf, engineering construction services, etc. 

Technical - No tooling needed, thus high freedom of design and product customization - Opening up to new applications areas (medical environment) - Latest developments offer more and powerful materials/RM-products - Process control is sensitive and available materials are limited - Scientific understanding of processes to some extent insufficient - Layer characteristic of parts and postprocessing necessary (removal of support infiltration of green parts)... 

PG-02-04 "Integrated planning product / process" PG-02-04-0ANXI Integrated product / process Control Plan... 

Additional monitoring, (i) The employer shall institute the exposure monitoring required under paragraphs (e)(2) and (e)(3) of this section when there has been a change in the production, process, control equipment, personnel or work practices which may result in new or additional exposures to benzene, or when the employer has any reason to suspect a change which may result in new or additional exposures. 

Additional. Whenever there has been a production, process, control, or personnel change which may result in any new or additional exposure to DBCP, or whenever the employer has any reason to suspect new or additional exposures to DBCP, the employer shall monitor the employees potentially affected by such change for the purpose of redetermining their exposure. 

A NIR Instalab 600-Dickey-John was used for production process control of traditional Greek feta cheese. Suitable filters were chosen to measure absorbances of moisture (at 1940 nm), fat (at 2310 nm), and protein (at 2180 nm). Samples were drawn from well-defined critical points of production and quantified with... 

In quality control of production processes, control charts are applied to display results of statistical sampling tests of products. Basic textbooks propose the use of a confidence interval of +/- three standard deviations in this application (see e.g. Wig, 1996). Lor a stable distribution, 99.7 per cent of the results of the tests will fall within this interval. The underlying... 

We also understand that, after our initial determination, if changes in production, process, control, or personnel occur, we must determine if employees are exposed to higher concentrations of the chemical(s). Our procedure(s) for monitoring for change and initiating additional monitoring is ... 

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