Hi

In AS audit audit observation there is a requirement of validating the measuring scale with standard

request you please let me know the method of validating the measuring scale

and suggest me

1) if i use one scale as a standard and is traceable to national standards

2) with that how can i validate the other scales

3) what will be the content of validation report for measuring scale

4) what is the suggested frequency fro validation of measuring scale

please share you knowledge it will help me proceed further

regards

ramesh

Usually a scale (or balance) is supplied with a certificate to demonstrate its accuracy - this calibration is performed by an external source.

This certificate would be renewed periodically - just another part of the calibration schedule.

It's a good idea however to buy a set of in house calibrated weights. You can use these weights each day at the beginning of the shift and record the results.
The in house routine checks can give you the assurance that the balance is accurate for use.

This is how we approach the issue of routine balance measurement accuracy.

Dear Denis

sorry for wrong post :(

i m looking for "Validation of a Measuring Scale with a Standard"

i have 1 'meter length scale which i need to validate wrt to standard one.

how can i proceed please let me know

regards

ramesh

Dear Denis

sorry for wrong post :(

i m looking for "Validation of a Measuring Scale with a Standard"

i have 1 'meter length scale which i need to validate wrt to standard one.

how can i proceed please let me know

regards

ramesh

Ramesh,

Your post got a little off track because of a terminology issue. The measuring device you are refererring to is called a "Rule." On a rule we observe the "scales." In your case the 1 mm and likely the 0.5 divisions and numbers. When you just use the term "scale", people interpret that as a weighing device. Because this is an international forum, being more specific will help to get an appropriate response.

Stijloor.

Dear Stijloor

Thanks for correcting me

regards

ramesh

Can anyone tell us how to best validate a 1 meter ruler with a standard?

Also read: Tape Measure Verification - Starrett 72" certified steel rule (http://elsmar.com/Forums/showthread.php?t=26941&highlight=starrett)

Hey, don't forget the uncertainty.....and remember, trace width is a serious Type B contribution here.....