Do any Hach pH buffers meet ISO guide 34 certification?

Document ID

Document ID TE1123

Version

Version 4.0

Status

Status Published

Published Date

Published Date 04/17/2019
Question
Do any Hach pH buffers meet ISO guide 34 certification?
Summary
Hach buffers and ISO guide 34
Answer
Hach buffers do not meet ISO guide 34. However, the certificates of conformance for Hach Radiometer pH buffers does mention that those certificates were drawn up using the ISO Guide 31. Information on ISO Quality Certification can be located online through the Hach Quality Policy.

Product #: S11M001 Certified Buffer Standard Solution, IUPAC, pH 1.679, 500 mL
Product #: S11M002 Certified Buffer Standard Solution, IUPAC, pH 4.005, 500 mL
Product #: S11M003 Certified Buffer Standard Solution, IUPAC, pH 6.865, 500 mL
Product #: S11M004 Certified Buffer Standard Solution, pH 7.000, 500 mL
Product #: S11M005 Certified Buffer Standard Solution, IUPAC, pH 7.413, 500 mL
Product #: S11M006 Certified Buffer Standard Solution, IUPAC, pH 9.180, 500 mL
Product #: S11M007 Certified Buffer Standard Solution, IUPAC, pH 10.012, 500 mL
Product #: S11M008 Certified Buffer Standard Solution, IUPAC, pH 12.45, 500 mL

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