The Apera Instruments AI1131-M 12.88 mS/cm Conductivity Standard Solution (8 oz) is specially formulated for the precise calibration and validation of all types of conductivity meters and electrodes. Manufactured in...

The Apera Instruments AI1131-S 12.88 mS/cm Conductivity Standard Solution (4 oz) is specially formulated for the precise calibration and validation of all types of conductivity meters and electrodes. Manufactured in...

Kcl, NaCl and 442 conversions printed on the bottle for ease of use (excluded on 60-ml bottle, but included in insert) temperature corrections are printed on the bottle, with certified...

You will be hard-pressed to find another company that offers tighter specs and a wider range of conductivity standards. Show more

Product Description The Extech EC-1413-P 1413 µS Conductivity Standard Solution provides reliable, repeatable calibration for conductivity and TDS meters. Pre-mixed to the 1413 µS standard value and sealed for consistency,...