A set for linearity check of the absorbance of spectrophotometers.

A set of reagents for calibration of spectrophotometers, to provide the user with a range two different concentrations of potassium dichromate and additional sulphuric acid as a reference solution.

Set contains:

1×250 ml potassium dichromate 50 mg/L in H₂SO₄ (0,005 M)
1×250 ml potassium dichromate 100 mg/L in H₂SO₄ (0,005 M)
2×250 ml sulphuric acid (0,005 M)