To give blood you must: 1  Be in general good health.  Be at least 17 years old. (If you are 16 you can donate with a CBC consent form signed by your parent). There is no upper age limit as long as you have no health restrictions.
Specific radiative intensity. Specific (radiative) intensity is a quantity used in physics that describes electromagnetic radiation. It is a term used in much of the older scientific literature. The present-day SI term is spectral radiance, which can be expressed in base SI units as W mâ2 srâ1 Hzâ1.
Intensity takes a look at how bright or dull a color is. The brightest intensity would be the pure color from the color wheel while the dullest would be where you can't even discern what the color is other then it looks like gray. Other words used to describe intensity are: 1  SATURATION.