Standard: 2003 NELAC
Section: 188.8.131.52.1 (b)
The standard reads:
"All support equipment shall be calibrated or verified at least annually, using NIST traceable references when available, over the entire range of use".
My question is, does the NIST traceable reference, in this case a thermometer that is sent out annually to an accredited company for verification, as well as the laboratory support equipment which is verified against this thermometer, also need to be calibrated by that company over the range of use?
TNI FINAL RESPONSE:
(Quality Systems Expert Committee and NELAP AC, 4-7-14)
A NIST-traceable reference sent out annually to an accredited company for verification or calibration is to be verified or calibrated over its entire range of use. Laboratory support equipment verified or calibrated in the laboratory against the NIST-traceable reference is to be verified or calibrated over its entire range of use.