It depends on the question you are trying to answer. If you are looking for impurities in the solvents, you will find many. If want to use the solvent as a standard to measure out a portion of it and dilute it for use as a standard solution, you can - but you are limited to the specificationof purity given by the vendor.
If you want to use some ethyl acetate to make up a standard solution to quantify ethyl acetate in pinapple flavoring, are most likely to be OK - unless you need tracability of the standard. If you want to use the ethyl aceate bottle in the lab as a solvent for or reference for acetic acid analysis - no. That can be expected to vary from lot to lot in the solvent, even though all lots may well be within specificaiton.
