Sodium Standard, 100 ppm, 475 ml, Bottle of 1

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ROSS, Half Cell ISEFor determination of Na+ ion activity in concentrations from saturated to 10-6M (saturated to 0.02 ppm)Model 4210E63 ROSS electrode requires Thomas number 4153Q87 or 0732K95 reference electrode. Uses Orion 900004 fill solution, order as 4153F22.Accessories:Sodium Ionic Strength Adjusting solutionSodium Standard, 100 ppm, calculated as Na+. Concentration and activity values are ppm