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Feb 09, 2011
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Drying Time for Blood on Tile
by: Anonymous

We did an experiment in my bloodspatter analysis lab and found that it took approximately 70 minutes for two drops of blood to dry on a tile surface.

Nov 10, 2010
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Blood Drying Time
by: Anonymous

Blood drying times are dependant on many things as are the drying times of other liquids. In essence the problem is one of a combination of clotting and evaporation. Both are related to temperature, atmospheric pressure, humidity, air flow, surface temperature, surface type and whether or not a given amount of blood is spread out to maximise its surface area or if it is concentrated to minimise the surface area (as is the case for a sphere of blood, although, clearly, a sphere of blood will not, typically, rest as a sphere on a surface).

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