Conductivity standards, Potassium chloride, IUPAC
: Hach
Potassium chloride standard solutions according to OIML, traceable to NIST and Standard solution verified by Reference Materials Laboratory.
Each standard is delivered in an airtight package ensuring safe storage. The nominal value of the pH standard is guaranteed until first opening, for up to 2 years from date of manufacture.
Observed shelf life after opening, following recommended storage and use: 3 months.
: Each standard is delivered in an airtight can and is supplied with a film-wrapped 'Certificate of Conformity and Traceability' as well as a DAkkS calibration certificate specifying the exact measured value and calculated expanded uncertainty (k=2) for each batch of conductivity solution.