Hanna Instruments solution for the 84 µS/cm standard supplied in an FDA-compliant bottle, one model.
HI8033L
This Hanna Instruments calibration solution measures the 84 µS/cm standard supplied in an FDA-compliant bottle.
In food and pharmaceutical plants the container is part of the compliance question, not a detail: what a bottle is made of and what it can leach has to be documented like anything else that enters the area.
A standard is only a standard while it is uncontaminated and in date. Pour what you need into a clean beaker, never dip an electrode into the bottle, and never return what you poured. Cap the bottle immediately — several of these solutions change value simply by standing open.
Write the opening date on the label. An expired or contaminated standard does not announce itself; it quietly calibrates every instrument in the laboratory to the wrong value.
Keep the certificate with the bottle; in an audit the standard without its documentation is the same as no standard.
Supplied as one model.