Browns Ferry / TVA does not use tamper seals on RP field instruments
Chuck Creamer Health Physicist Radiation Protection Tennessee Valley Authority; Browns Ferry Nuclear Plant P.O. Box 2000 (Mail Stop NAB-1G-BFN) Decatur, Al. 35609-2000 256.729.2983 (w) [email protected]<mailto:[email protected]> [https://lakeinfo.tva.gov/web/images/tva_logo_32b.png]<https://tva.com/> [https://lakeinfo.tva.gov/web/images/blue_line.png] [https://lakeinfo.tva.gov/web/images/facebook2.png]<https://www.facebook.com/TVA/>[https://lakeinfo.tva.gov/web/images/twitter2.png]<https://twitter.com/tvanews>[https://lakeinfo.tva.gov/web/images/instagram2.png]<https://instagram.com/tva>[https://lakeinfo.tva.gov/web/images/youtube2.png]<https://www.youtube.com/user/TVANewsVideo>[https://lakeinfo.tva.gov/web/images/linkedin2.png]<https://www.linkedin.com/company/tva>[https://lakeinfo.tva.gov/web/images/flickr2.png]<https://www.flickr.com/photos/tennesseevalleyauthority/> NOTICE: This electronic message transmission contains information that may be TVA SENSITIVE, TVA RESTRICTED, or TVA CONFIDENTIAL. Any misuse or unauthorized disclosure can result in both civil and criminal penalties. If you are not the intended recipient, be aware that any disclosure, copying, distribution, or use of the content of this information is prohibited. If you have received this communication in error, please notify me immediately by email and delete the original message. From: Powernet <[email protected]> On Behalf Of Tom Meek via Powernet Sent: Tuesday, April 9, 2019 2:25 PM To: [email protected] Cc: Tom Meek <[email protected]>; 'Mark Tursa' <[email protected]>; Jim VanLooven <[email protected]> Subject: [Powernet] RP field instrument tamper seals TVA External Message. Please use caution when opening. I have a question regarding tamper resistant seals for calibration on RP meters. A QA audit made a SFR (supplier finding report) at an instrument calibration facility stating vendor should be placing these seals on our RP meters. The cited standard is ANSI Z540:1994 Section 11.5, but after some discussion we agreed that this only applies to lab standards. He also cited ISO 17025:2017 Section 6.4.12 which states "the laboratory shall take practical measures to prevent unintended adjustments of equipment from invalidating results." The auditor said that industry interprets this as requiring tamper seals, but also said that complying with the ISO standard was a matter of lab certification only (not a regulatory requirement). Does any site require tamper resistant seals on RP field instruments? Yes No If yes how do you handle routine battery and/or desiccant replacement? What do you do if a seal is found broken or missing. In short, would the event be entered into the corrective action system? Do you rely on your source check and zero check of the instrument to "validate" its calibration in lieu of the tamper seal? Thanks in advance Tom Meek, CHP
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