Thanks, Our machine is a Brookfield. Our machine also has a switch to "gm", After your message I understand they mean grams not gram x meter as I thought before. Neither makes sense to me. Thanks a lot. Adrian -----Original Message----- From: James R. Frysinger [mailto:[EMAIL PROTECTED]] Sent: Tuesday 12 December 2000 17:31 To: [EMAIL PROTECTED] Cc: U.S. Metric Association Subject: Re: [USMA:9707] Krebs units Adrian, Wow. What a weird one. I've found a little information for you. One company makes a viscometer that they say can be set to read out in Krebs units or in grams. That makes absolutely no sense to me. However their web page is http://www.brookfieldengineering.com/products/laboratory/ku.cfm Another page http://www.pra.org.uk/technical/oils/stdoils.htm contains a table and on a few lines dynamic viscosity (Poise, P), kinematic viscosity (Stokes, S), and viscosity (Krebs, K) -- all at 25 �C -- are listed for various oils they manufacture. There does not seem to be a linear relationship; rather it is a power relationship (K proportional to P [or S]^n where n<1). Fortunately there is a note on the column for the viscosity in Krebs and it says "*** These values have been calculated using the method described in ASTM D 562-81 (1990). " Hopefully, if you can get your hands on that standard, you can convert the units. Remember that 10 P = 1 Pa�s and 10 000 S = 1 m2/s. Good luck! Jim Adrian Jadic wrote: > > We have a "viscometer" in our lab which uses KU (Krebs units). > I was not able to find any conversion to SI for these units that I never > heard of. I was not able to find a definition for these units either. > > Can anybody help me? > > Adrian > > PS> (frustrated): I think I should start to patent my own measuring system. > It seems to be a successful way to become famous. > > I'll call them "Adrian thumb" or "a Jadic spit-length". > > Have a nice day! -- Metric Methods(SM) "Don't be late to metricate!" James R. Frysinger, CAMS http://www.metricmethods.com/ 10 Captiva Row e-mail: [EMAIL PROTECTED] Charleston, SC 29407 phone/FAX: 843.225.6789
