More specifically, the technical manager for our 17025 test lab purchased the following set of pH buffers:
Oakton® pH Buffer Solution Packs - Cole-Parmer
It says "Manufactured under ISO 9000 quality guidelines and traceable to NIST standards" but it did not come with a certificate.
EDIT: I was able to find the CoA on the website itself - https://pim-resources.coleparmer.com/certificate-of-analysis/0065400_CC719389.pdf
What exactly does 17025 require for its reference materials and are these buffers appropriate to use for that?
Oakton® pH Buffer Solution Packs - Cole-Parmer
It says "Manufactured under ISO 9000 quality guidelines and traceable to NIST standards" but it did not come with a certificate.
EDIT: I was able to find the CoA on the website itself - https://pim-resources.coleparmer.com/certificate-of-analysis/0065400_CC719389.pdf
What exactly does 17025 require for its reference materials and are these buffers appropriate to use for that?
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