RE: Instrument Calib.

["Jim F. Herrold" <Herrold@UWyo.Edu>]

Section 5.3 of ANSI N323 refers to the instruments USED as derived
standards in the calibration of hand-held survey equipment. These
derived standards, if they are indeed being used, must be calibrated at
least every three years. On the other hand, the standard recommends that
survey instruments which are USED for detection and measurement of
radiation fields or surface contamination be calibrated at least every
year.

In either case, the word "USED" (my emphasis) implies that, if the
instrument is sitting on the shelf, it doesn't have to be calibrated.
Once it is taken off the shelf, however, it must be calibrated before it
can be used.


Jim F. Herrold
Radiation Safety Officer
University of Wyoming
Environmental Health & Safety
312 Merica Hall
Laramie, WY 82071

herrold@uwyo.edu
(307) 766-3277


>----------
>From: 	Bates Estabrooks[SMTP:besta@tis.eh.doe.gov]
>Sent: 	Monday, December 02, 1996 4:27 PM
>To: 	Multiple recipients of list
>Subject: 	Instrument Calib.
>
>A colleague of mine poses this question to RADSAFE:
>
>ANSI N323-1978 Sec. 5.3 states: "calibration shall be reestablished
>after maintenance or repair. . . but in no case at intervals greater
>than three years."
>
>Does this mean that instruments that are in inventory, but not in use,
>need to be pulled off the shelf and calibrated every three years?  If
>so, how do various sites implement this?
>
>Thanks.
>-- 
>Bates Estabrooks
>Westinghouse Elec. Corp
>WIPP
>P.O. Box 2078
>Carlsbad, NM 88220
>
>besta@tis.eh.doe.gov
>505-234-8470
>fax:505-885-4562
>
>
>STANDARD DISCLAIMER
>