RE: Recertification of Calibration Sources

["Edwards, Richard W" <Richard.Edwards@PSS.Boeing.com>]

Per ANSI N323A, Paragraph 5.1 "Working standards derived from secondary or tertiary standards shall be used and shall be compared at least annually against the secondary or tertiary standards."

Rick Edwards, Analyst
The Boeing Company
richard.w.edwards@boeing.com

> ----------
> From: 	Kelly Ausbrooks[SMTP:ausbrookskl@yahoo.com]
> Subject: 	Recertification of Calibration Sources
> 
> Radsafers,
>    I'm looking for references which specifiy calibration frequencies
> for sources used to calibration instrumentation.
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