[volt-nuts] HP 3457A

[Charles Steinmetz]

Orin wrote:

>They send a calibration certificate which claims that their 
>standards are traceable to NIST.  I have no reason to doubt that.

Owning standards and instruments with traceable calibrations is 
necessary but not sufficient for making traceable calibrations with 
them.  For a calibration to be traceable, the lab that did the 
calibration must be accredited.  If the lab is accredited, the 
calibration certificate would certainly identify the accrediting body.

Does the certificate you received identify an accrediting body?

Best regards,

Charles