[volt-nuts] HP 3457A

[John Phillips]

A calibration indicates that the unit under test is withing manufactures
specification. The equipment and procedure used has to be "good enough"
(bad words in a cal lab) to have a high probability (nothing is 100%) of
insuring the calibration documentation is valid. Things can  can be a
little looser if you are calibrating a 1% meter with a 10 ppm meter but it
does not work the other way around.



On Mon, Aug 12, 2013 at 9:43 AM, Mike S <mikes at flatsurface.com> wrote:

> On 8/12/2013 12:21 PM, Charles Steinmetz wrote:
>
>> No, you could not perform ANY traceable calibration with the 3458A
>> itself, much less with any instrument you had calibrated with the 3458A,
>> because *you* are not accredited
>>
>
> That's simply not true. Some organizations may require a lab to be
> accredited in order to accept their services, but it is not a requirement
> in order to legitimately claim traceability.
>
> The NIST Traceability Policy is found here:
> http://www.nist.gov/**traceability/nist_**traceability_policy_external.**
> cfm<http://www.nist.gov/traceability/nist_traceability_policy_external.cfm>
>
>
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-- 
John Phillips