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Kinematic vs. Dynamic viscosity; zahn viscometer

Kinematic vs. Dynamic viscosity; zahn viscometer

Kinematic vs. Dynamic viscosity; zahn viscometer

(OP)
Can anyone clear up the definition (conceptually) of kinematic vs. dynamic viscosity?  Also, I am in need of a reputable reference for conversion of seconds on the zahn viscometer (#'s 2&3) to a standard unit, such as cSt or cp... I have come across a few conversion equations and tables, but the conversion values appear to be all over the place.  For example, for 18 seconds on zahn #2, I have references that give me a value as high as 20 cp, and another give me as low as 7.5 cp.  One reference gives a value as high as 30 cSt and another as low as 14 cSt...   Any help is appreciated.  

RE: Kinematic vs. Dynamic viscosity; zahn viscometer

The Gardner Co. claims to be the only authorized to sell Zahn cups, and probably can supply the conversion graphs to cS. I found them on the internet at:

              http://www.gardco.com/navigation.html

then click the word "viscosity".

1 cP is absolute (=dynamic) viscosity =0.001 Pa.s=0.001 kg/(m.s)

1 cS is kinematic viscosity=10-6m2/s=1 mm2/s = cP/density

good luck.

RE: Kinematic vs. Dynamic viscosity; zahn viscometer

For a whole range of conversions you can visit the Norcross web site and follow the links to conversion tables: www.viscosity.com

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