Hi,
The upcoming USP update, eff, Dec 1st, 2013 has added repeatability and Accuracy tests.
In Accuracy, it states:
The accuracy of a balance is satisfactory if its weighing value, when tested with a suitable weight, is within 0.10% of the test weight value.
we are having 4 place balances.
My question is:
with this, change, does it mean, we can not weigh less than 1 g on this balance, and will need 5 place balance to weigh less than 1 g?
Thanks in advance
[quote=lalooprasad]Hi,
The upcoming USP update, eff, Dec 1st, 2013 has added repeatability and Accuracy tests.
In Accuracy, it states:
The accuracy of a balance is satisfactory if its weighing value, when tested with a suitable weight, is within 0.10% of the test weight value.
we are having 4 place balances.
My question is:
with this, change, does it mean, we can not weigh less than 1 g on this balance, and will need 5 place balance to weigh less than 1 g?
Thanks in advance[/quote]
earlier it is 0.1, From dec 1st onwards it would be 0.10%
So there is no problem for your needs.
whatever you are following now, you can follow the same.
There is no difference in the guideline.
Only the changes are
1)0.1% becomes 0.10%
2)uncertainity :
3sd/weight should be less than 0.001 becomes 2sd/weight should be less than 0.001
Regards,
Bujji Reddy Kanchi.
9676749937