HANNA HI7031L EC CONDUCTIVITY SOLUTION 500ML

Hanna® Conductivity Standard Solution is a 1,413 µS per cm conductivity standard produced using NIST traceable potassium chloride and high purity deionized water. This solution is prepared in accordance with ISO 3696 and BS3978 using certified balances, Class A glassware, and certified thermometers to maintain consistency. Each bottle is air tight with a tamper proof seal to protect freshness, and the label includes a lot number and expiration date for traceability. A temperature chart showing actual conductivity values at various temperatures is printed on every bottle. Unopened bottles are formulated for a five year shelf life.