On 3/06/2011 10:35 AM, Andy wrote:
> "Ed > wrote:
>
>>
>> > wrote
>>> Get five rolls of nickels. Drop one coin on the scale. It should
>>> read 5 grams. Plop the rest of the coins on the scale. It should
>>> read 1000 grams, plus or minus a bit. If it's more than a gram off
>>> for the nickel, or more than 2-4 grams with the five rolls, it might
>>> need some work. Or just remember how far off it is, and compensate
>>> as needed when using it.
>>
>> You can buy calibration weights. Easier it to weight something and
>> make a note of it. The put that same piece back on the scale and it
>> should read the same.
>>
>> A calibrated weight can cost from about $10 to over $1000 depending on
>> the accuracy and traceability needed. Unless you are doing rocket
>> surgery, it is not needed.
>
>
> Ed,
>
> In science class, I remember a small kit of precision calibration
> weights, made of brass, iirc. I forget the weights.
>
> If I was allowed to take one thing from school, that would be it.
>
> I'm a BUM!!! about precision.
>
> Best,
>
> Andy

I remember a set of large calibrated weights down at the station in the
days when stations were manned. These were used to calibrate the scales
at regular intervals, such calibration being a legal requirement for any
commercial scale.

Might be a tad large for kitchen use I suspect.

Krypsis