Test standards to test ISE VARiON® electrodesof brand WTW.

Test standards:

VARiON®/ES-1: Multiple standard solution 1 (low concentration) for VARiON®Plus 700 IQ/AmmoLyt®Plus 700 IQ/NitraLyt®Plus 700 IQ; Volume: 1000 ml
VARiON®/ES-2: Multiple standard solution 2 (high concentration) for VARiON®Plus 700 IQ/AmmoLyt®Plus 700 IQ/NitraLyt®Plus 700 IQ; Volume: 1000 ml