On 06/01/2013 04:54 PM, Bob Camp wrote:
Hi
At least the way I read the pdf's NIST seems to believe that GPS is legally traceable to
NIST. It is the same "measure and then look up the data" sort of thing that
LORAN used to be. Took a while to read through them all…
However, just taking time from GPS does not achieve NIST traceability.
The NIST folks will point it out too.
You can achieve NIST traceability (or to any other NIH) if you do a
whole bunch of things _right_ and in accordance with relevant standards.
Few do.
Cheers,
Magnus
Bob
On May 31, 2013, at 4:37 PM, Charles P.
Steinmetz<[email protected]> wrote:
Scott wrote:
How are those of you dealing with traceability in the commercial space
The topic is known as "legal metrology." Start here:
<http://www.nist.gov/traceability/nist_traceability_policy_external.cfm>
You need to click through lots of links to get the whole picture. I believe
the material is printed in the NIST Administrative Manual.
Other potentially helpful links:
<http://tf.nist.gov/general/pdf/2289.pdf>
<http://tf.nist.gov/seminars/2002%20NIST%20Seminar%20-%20Traceability%20and%20Legal%20Metrology.ppt>
<http://www.icllabs.com/pdfs/A2LA_P102%20Policy%20on%20Measurement%20Traceability.pdf>
<http://tf.nist.gov/general/pdf/1305.pdf>
Best regards,
Charles
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