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From: Mikko <mikko.levanto@iki.fi>
Newsgroups: sci.physics.relativity
Subject: Re: Scalar waves
Date: Mon, 6 May 2024 13:48:16 +0300
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On 2024-05-06 09:36:27 +0000, J. J. Lodder said:

> A measurement is not a measurement unless it can be traced
> to a primary standard.
> So your multimeter measures 204.5 mA when it says so
> because the manufacturer of it says so.
> Your manufacturer can guarantee that,
> because he has calibrated the thing
> against his standard ampere meter.
> He knows that his standard meter measures amps
> because he takes it to his national standards lab,
> where they calibrate it for him.
> And ultimately (if you live in a small country)
> your national lab takes their standards to NIST, or BIPM,
> where they do have a primary standard.

Possibly. Or the manufacturer or certifier or the national
laboratory may have a reference that they compare directly
to the definition.

-- 
Mikko