RE: How to word warning on electromagnetic frequency (EMF)?

Subject: RE: How to word warning on electromagnetic frequency (EMF)?
From: Richard Pineger <r -dot- pineger -at- kudos-idd -dot- com>
To: "TECHWR-L" <techwr-l -at- lists -dot- raycomm -dot- com>
Date: Tue, 12 Feb 2002 09:24:46 +0100

In this instance it is EMF represents ElectroMagnetic Field. The word
frequency didn't make any sense in this context. Peter, in my experience
electromotive force is usually spelt in lower-case e.m.f. and is the
equivalent of voltage.


-----Original Message-----
From: Farwell, Peter [mailto:peter -dot- farwell -at- encorp -dot- com]
Sent: 11 February 2002 11:37 pm
Subject: RE: How to word warning on electromagnetic frequency (EMF)?

According to the Electrical Generating Systems Association's Glossary of
Electrical and Mechanical Terminology and Definitions -
EMF is commonly referred to as electromotive force. - probably not what you
are looking for.

None of my sources refers to "EMF" as anything else.

For "EMI", OTOH, my "IEEE Standard Dictionary of Electrical and Electronics
Terms" lists five (5) definitions for electromagnetic interference (EMI) -

...number (5) might be close to what you are looking for: Electromagnetic
energy from sources external or internal to electrical or electronic
equipment that adversely affects equipment by creating undesirable responses
(degraded performance or malfunctions). EMI can be divided into two classes:
continuous wave (CW) and transient.

Hope this helps.

Peter Farwell

And, of course, there is "EMP" (electromagnetic pulse) which is what a
nuclear explosion produces (among other things).

> Does anyone has some good wording for a general
> warning about electromagnetic frequency (EMF)? We
> would like to include this in a manual for medical
> equipment that will generally reside in a hospital
> operating room (which most likely already has
> protections against EMF, anyway, but sometimes these
> warnings have to be explicit).
> I am searching through the official sources (FDA Web
> site, CEI documents), but so far I have not seen any
> guidance on the wording I should use.

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