COD vials have a 5 year from manufacture date of expiration.

Most labs use ±5%. The exact acceptance criteria should be determined by your QA practices.

You can find our Certificates of Analysis on our website under the Technical tab or at http://www.envexp.com/coa.

This standard is good for one year from the date of manufacture.

If you require a different lot other than 77030, request this when ordering and we will make sure a different lot is shipped to you.