Re: Survey Instrument calibration frequency

[rkathren@tricity.WSU.edu (Ron L. Kathren)]

Jim --

Not in ANSI N323A; this standard specifies "Calibration shall be required
annually, even when source check requirements .  .  .  are met".  I sure
would be interested in this myself.

Ron Kathren

At 12:27 PM 2/4/99 -0600, Jim F. Herrold wrote:
>Howdy.
>
>Reading through Draft NUREG 1556 vol.11 I came across this statement under
>section 8.10.2, RADIATION MONITORING INSTRUMENTS:
>
>"Some instruments may only need to be checked periodically for operability
>and response to radiation rather than receive full calibration.  For
>example, Geiger-Mueller (G-M) type survey instruments used to identify
>contamination in laboratories may only need to be checked for ability to
>detect low level contamination."
>
>If this is true, it would have a HUGE impact on our calibration program. Is
>anybody else doing this? Does anybody know where the NRC got this guidance?
>Was it from ANSI N323A-1997? I don't have it yet, but am planning to obtain
>one as soon as possible. We have been following the old ANSI N323-1978, and
>don't remember any statements like the one above.
>
>We are in the process of renewing our license. Because NUREG 1556-11 is
>still in draft form, the NRC says I can't use it yet. However, if I can find
>another suitable reference for this statement, I could use it.
>
>Thanks.
>
>Jim Herrold, Radiation Safety Officer
>herrold@uwyo.edu
>
>University of Wyoming
>Environmental Health & Safety
>303 Merica Hall
>Laramie, WY 82071-3413
>
>(307) 766-3277
>
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