That sounds like an excellent plan, Adrian. The value of a standard
diminishes if it is not enforceable. If they don't comply with a
standard, then they need to come into compliance or stop claiming to
meet that standard.
As for the issue on whether or not the problem is dealing with
non-Newtonian fluids, I think that specifying the mass of the "drop
weight" would be insufficient to serve as a self-standing parameter.
One would also have to specify paddle dimensions (cross-sectional area,
length, number, geometry), angular velocity (to calculate linear
velocity along the blades), and so forth. The Krebs Unit seems to me to
be akin to some of the hardness scales, where geometry and procedure
are an important part of the specification. I agree -- it's not
viscosity. I demonstrated that with my power-regression of the values
for those oils.
Jim
On Tue, 26 Dec 2000, Adrian Jadic wrote:
> I decided to go one step forward.
>
> Brookfield engineering is an ISO 9001 registerd company. One of the main
> issues in ISO 9000 registration is compliance with national and
> international standards.
>
> I will follow up with their ISO registrars and ask them to issue a CAR
> (Corective Action Request) for the non compliance of their instrument
> nameplate with the refernced standards (NIST, ISO) as well as for the misuse
> of the term "viscometer".
> This should turn some bigger wheeles than Mr. DiCorpo and force them to give
> me a better answer than quoting the American Heritage Dictionary.
>
> We'll see what comes up.
>
> (A stubborn) Adrian
>
>
> -----Original Message-----
> From: Adrian Jadic [mailto:[EMAIL PROTECTED]]
> Sent: Friday 22 December 2000 17:00
> To: U.S. Metric Association
> Subject: [USMA:9987] Krebs units/ My reply to Brookfield
>
>
> Mr. DiCorpo:
>
> Thanks again for your letter.
>
> I understand from your message that there is no known relationship between
> KU and any known units of viscosity. If this is correct, the equipment has
> no use for us. We were looking to characterize the paint made in our company
> in order to define the correct equipment to handle it. If there is no
> relationship than we cannot use it as our equipment manufacturers have no
> idea of what KU means and how it relates to their equipment.
>
> I regret that I could not make my point clear in my other letter that; if
> you cannot relate the measurement to the definition of viscosity then you
> cannot name it viscometer as it will only create confusions. You should name
> it "Krebs machine" or "Krebs tester" etc. I hoped that a company like yours
> which has so much experience in metrology would understand better the
> importance of standards over what technicians in a paint company's lab are
> used to do.
>
> Furthermore, you are quoting the American Heritage Dictionary. I have to
> remind you that a dictionary's purpose is to explain words or phrases
> indifferent if they are correct or not. A dictionary IS NOT a standard. I
> quoted you the US standard specifications as well as the internationally
> recognized ISO standard. I agree and know that people use gm and gms but
> they do it from ignorance of the standard specifications. The purpose of my
> message to you was to bring to your attention the error that Brookfield
> makes in labeling the display in "gm".
>
> I am also attaching a copy of the federal register Vol. 63 No: 144 which
> represents the standard published by DoC-NIST regarding the Interpretation
> of the International System of units for the United States. At the end of
> the document you will find all the correct names, spellings abbreviations
> for the SI units.
>
> I sincerely hope that this document will be of use for your company. I see
> Brookfield as a metrology giant that takes a lead in promulgating
> correctness over bad habits and science over alchemy.
>
> Sincerely, yours,
>
> Adrian Jadic
--
James R. Frysinger University/College of Charleston
10 Captiva Row Dept. of Physics and Astronomy
Charleston, SC 29407 66 George Street
843.225.0805 Charleston, SC 29424
http://www.cofc.edu/~frysingj [EMAIL PROTECTED]
Cert. Adv. Metrication Specialist 843.953.7644
