The INDUSTREX Calibration Step Tablet is a density step wedge film to verify the calibration of optical transmission densitometers used in the industrial X-ray field.

Each INDUSTREX Calibration Step Tablet is:

•  Packed in a light-tight waterproof package to guarantee a shelf life of at least

•  4 years, in an unopened package or 2 years from date of first use, whichever comes first.

•  A calibration certificate

•  A copy of the NIST certificate S.R.M. 1001