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Controller reliability and application trends

Controller Reliability and Application Trends Critical plications demand a high level of reliability from the that improve the relia... [Pg.73]

Sample Distribution and Frequency. The number of samples to be distributed in each round depends on whether the scheme covers a range of concentrations, as well as on the statistical design of the scheme. The frequency often relates to the field of application and the availability of reliable and stable quality control materials. The number of samples per analyte in each series should be below six so as not to burden the laboratory work, and to obtain information on the trends in a laboratory s performance the frequency of sample distribution in any series should not be more than every fortnight and not less than every 4 months. [Pg.57]

Ashless antioxidants Lack of quality reliability claimed for passenger car engine oils in the United States led to the introduction of ILSAC GF-1 (API SH) for 1994 model year vehicles and the adoption of the American Chemistry Council Product Approval Code of Practice which addresses quality assurance issues. A similar system was adopted later in Europe. With the application of the ACC Code of Practice, the commonly used concentration of alkylated diphenylamine antioxidants in the oil was increased in order to pass Sequence HIE viscosity control requirements [106]. When the Sequence HIE, of 64 h test duration, was replaced by the Sequence IIIF, of 80 h duration, with ILSAC GF-3 (API SL) for 2001 model year vehicles, the trend to use higher concentrations of ashless antioxidants continued. [Pg.144]

The application of microprocessors to SEMs has already started. This trend will continue. In current applications, the microprocessors are used to control a number of simple switching functions. More extensive use in this manner could prove useful in simplifying operation and increasing system reliability. Further possible applications include image enhancement and image analysis. [Pg.573]


See other pages where Controller reliability and application trends is mentioned: [Pg.776]    [Pg.73]    [Pg.600]    [Pg.948]    [Pg.953]    [Pg.780]    [Pg.776]    [Pg.73]    [Pg.600]    [Pg.948]    [Pg.953]    [Pg.780]    [Pg.9]    [Pg.147]    [Pg.271]    [Pg.52]    [Pg.72]    [Pg.1684]    [Pg.422]    [Pg.605]    [Pg.379]    [Pg.400]    [Pg.297]    [Pg.181]    [Pg.1598]    [Pg.290]    [Pg.672]    [Pg.472]    [Pg.178]   


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