To check the factor of the solutions titrated, we supply standards, highly chemically pure substances with a purity of 100 ¡¾0.05% after drying.
With a purity between 99.95 - 100.05 % and traceables to SRM of NIST.
They are available in boxes of 10 hermetically sealed glass tubes containing 1.5 g of the ready-to-use product as well as in glass bottles.