Report on COD Range for Every Application

• Wide selection of concentrations and sizes

• Traceable to NIST standard reference materials

• Minimum 2 year shelf life guarantee (if unopened).

Reliable results

Whether in the laboratory or in the field, correct measurement results are essential. The basis for accurate measurements is good care and calibration of the electrodes. As well as proper handling, the standard solutions that are used are key. HACH LANGE offers a large number of high quality buffer and standard solutions for pH and conductivity. The laboratory in Berlin where these solutions are prepared is DKD – accredited, giving them the seal of approval.

Certified standards

The certified IUPAC standards in airtight boxes have a shelf life of 4 years if unopened and can be used to achieve maximum accuracy. A DKD approved calibration certificate is available for each batch. The colour-coded buffer solutions in 500ml bottles are attractively priced all-rounders for almost every situation. Anyone carrying out occasional measurements in the lab or in the field will appreciate the practical SINGLET 1 unit dose pouches.