COD Standards

Item No. | Description | |
---|---|---|
B1030 | COD Standard, 1,000 ppm, 250mL | |
B1031 | COD Standard, 10,000 ppm, 250mL | |
Question/Answer
What is the usual expiration time from purchase?
COD vials have a 5 year from manufacture date of expiration.
What is the acceptable range of the B1030 COD standard?
Most labs use ±5%. The exact acceptance criteria should be determined by your QA practices.
where can i get a cert. of analysis for #B1030 lot# 84929 ??
You can find our Certificates of Analysis on our website under the Technical tab or at http://www.envexp.com/coa.
what is the shelf life of this standard?
This standard is good for one year from the date of manufacture.
Is the lot number different than 77030
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.