Color and Appearance

A stable crystalline form for chocolate depends primarily on the method used to cool the fat present in the Hquid chocolate. To avoid the grainy texture and poor color and appearance of improperly cooled chocolate, the chocolate must be tempered or cooled down so as to form cocoa butter seed crystals (31). This is usually accompHshed by cooling the warm (44—50°C) Hquid chocolate in a water jacketed tank, which has a slowly rotating scraper or mixer. As the chocolate cools, the fat begins to soHdify and form seed crystals. Cooling is continued to around 26—29°C, during which time the chocolate becomes more viscous. If not further processed quickly, the chocolate will become too thick to process. 

Color and Appearance Collaborative Reference Program, Collaborative Testing Services, Inc., Herndon, Va., previously MCCA-NBS Collaborative Reference Program on Color and Color Differences, National Institute of Standards and Technology, Washiagton, D. C., 1991. 

A smooth, weU-pohshed amalgam restoration retains its color and appearance much better than a poorly finished one. Roughness promotes uncleanliness, discoloration, and corrosion. 

When a UTI has been diagnosed, sensitivity tests are performed to determine bacterial sensitivity to the drugp (antibiotics and urinary anti-infectives) that will control the infection. The nurse questions the patient regarding symptoms of the infection before instituting therapy. The nurse records the color and appearance of the urine. The nurse takes and records die vital signs. A urine sample for culture and sensitivity is obtained before the first dose of the drug is given. 

ANTEC 2003. Proceedings of the 61st SPE Annual Conference held Nashville, Tn., 4th-8thMay 2003. Brookfield, Ct., SPE, 2003, Volume 1-Processing Session Mi-Color and Appearance, p.2414-8, CD-ROM, 012... 

Color and Appearance. Tetracene shall be white to light yellow and under microscope... 

Color and Appearance. Transfer a portion of about 10g of the wet sample as received to a Buchner funnel an d apply suction until the sample is almost dry. 

Color and Appearance. LMNR shall be It brn in color and free from foreign material... 

Color and Appearance. Transfer ca 10g of the wet sample as received, to a Buchner funnel and apply suction until the sample is almost dry. Spread the material on a large watch glass and place in an oven at 70-75° for at least 4 hrs or until constant wt is obtd. Take four 0.5-mg portions, each from different sections of the sample and spread them over an area of 2 sqcm on a glass microscopic slide. Examine the material using a magnification of ca 30 times... 

At the present time, in choosing ingredients for bottle-glass, economy is the chief object color and appearance are here of no moment. Little soda or potsssn is admitted into the composition, of this description of glass and, as the carbonates of these bases are costly, it is usual to employ in the bottle glass-works only recent ashes or wrack-soda to furnish the alkali, Moreover, the other materials are taken in a state of impurity fit only for bottles. 

Mulchings. J.B. Food Color and Appearance, Axpeu Publishers. Inc., Gailhcrsburg. MD. 1999. 

Staff A STM Standards on Color and Appearance Measurement. American Society for Testing Materials, West Conshohocken, PA, 2000. 

ASTM (American Society for Testing and Materials). 2000. D 1729-96, Standard Practice for Visual Appraisal of Colors and Color Differences of Diffusely-Illuminated Opaque Materials. In ASTM Standards on Color and Appearance Measurement, 6th ed. ASTM, West Con-shohocken, Pa. 

A compilation of all ASTM standards for color and appearance. An excellent resource for guidance in all aspects of color and appearance measurement. 

GretagMacbeth. 1998. Fundamentals of Color and Appearance. GretagMacbeth, South Deerfield, Mass. 

A short book designed to provide a basic foundation for understanding color and appearance. It is used in educational seminars intended for people involved in the evaluation and management of color and appearance where fundamental principles can be applied to solve issues. 

An important textbook and reference that covers color and appearance as it relates to objects and the methods available for measurement. 

A)Color and Appearance. The material shall be a grayish-black powder when visually examined... 

Atenolol, as the powder and in the form of tablets was kept at 5o-6o relative humidity and 45-5o°C for seven days. No changes were observed in HPL chromatogram, neither did the color and appearance of the material show change. 

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