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Bronze Member - 1 or more posts
Posted
Somebody could say me the different between the cP (Centipoise) and cSt (Centistokes)? , is something about the cinematic and dynamic viscosity?

Thanks so much for help to beginner analyzer
 
Posts: 1 | Registered: Tue October 18 2005Reply With QuoteEdit or Delete MessageReport This Post
Double Platinum Member - 100 or more posts
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Centipoise (cp) is a unit of absolute viscosity.

100 Centipoise = 1 Poise
1 Centipoise = 1 mPa s (Millipascal Second)
1 Poise = 0.1 Pa s (Pascal Second)
Centipoise = Centistoke x Density
 
Posts: 207 | Location: Invicta Oil Lab, Norway | Registered: Fri March 05 2004Reply With QuoteEdit or Delete MessageReport This Post
Platinum Member - 50 or more posts
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Another way of expressing the Centistoke is absolute viscosity divided by the density of the fluid (mm^2/sec, kinematic viscosity).
 
Posts: 83 | Location: USA | Registered: Mon February 02 2004Reply With QuoteEdit or Delete MessageReport This Post
Platinum Member - 50 or more posts
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In condition monitoring the viscosity of oil is measured in cSt at either 40C (ISO Vg grade) for industrial applications and 100C for engine and transmission oils.cP is seldom/never measured on used oils.
ISO VG 5 is very thin and ISO VG 1000 is very thick (viscous).Centistokes cSt is a simple measurment of a fixed volume flow through an orifice timed at a fixed temperature and converted to centistokes.
 
Posts: 63 | Location: SGS Vernolab Stanlow UK | Registered: Tue April 12 2005Reply With QuoteEdit or Delete MessageReport This Post
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