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Definition of Terms. Dyne Level: A measurement of the wetability of the surface of the material to be printed. A DYNE level of at least 34. and not more than 50 is necessary for printing plastics on conventional offset; a measurement of 38 to 42 is required for. UV Offset.
Definition: The weak D phenotype (Du) is a weakened form of the D antigen that in routine D typing will react with some anti-D but not with others (when an immediate spin or 37Â° incubation is done). Weak D red cells have the D antigen, but have fewer D antigens per cell than normal Rh positive cells. The current preferred term for Du is weak D.. The frequency of the weak D phenotype in Caucasians is approximately 0.3 percent (3 in 1000).