Brookfield DV2T Viscometer Manual do Utilizador descarregar pdf (Página 67)

Brookeld Engineering Labs., Inc. Page 67 Manual No. M13-167-B0614

Viscometer Related Variables

Mostuidviscositiesarefoundtobenon-Newtonian.TheyaredependentonShearRate,time

oftestandthespindlegeometryconditions.ThespecicationsoftheViscometerspindleand

chambergeometrywillaffecttheviscosityreadings.Ifonereadingistakenat2.5RPM,and

asecondat50RPM,thetwocPvaluesproducedwillbedifferentbecausethereadingswere

madeatdifferentshearrates.Thefasterthespindlespeed,thehighertheshearrate.

Theshearrateofagivenmeasurementisdeterminedby:therotationalspeedofthespindle,

thesizeandshapeofthespindle,thesizeandshapeofthecontainerusedandthereforethe

distancebetweenthecontainerwallandthespindlesurface.

Arepeatableviscositytestshouldcontrolorspecifythefollowing:

 1) Testtemperature

 2) Samplecontainersize(orspindle/chambergeometry)

 3) Samplevolume

 4) Viscometermodel

 5) Spindleused

 6) Whetherornottoattachtheguardleg

 7) Testspeedorspeeds(ortheshearrate)

 8) Lengthoftimeornumberofspindlerevolutionstorecordviscosity

 9) Howthesamplewaspreparedand/orloadedintothecontainer

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Sachin Vaijanath Ashture 05 Mar 2025 | 15:48:33

It's good information

Brookfield DV2T Viscometer Manual do Utilizador Página 67