How we fix the validity period of a Normal solution and
re-standardization due date

Answer Posted / abdul kalim

Assining the Validity of the Volumetric Solution can be
done through establishing the Stability of the Normal /
Molarity of the Volumetric solution, say if the volumetric
solution is stable within ± 10% concentration of the
specified concentration. if the volumetric solution is
stable for 45 days then the validity/expiry can be assign
for 30 days and the Re-standardization date can be assign
for every 15 days.

There are no such standatd guidlines.

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