MSA has just released an updated version of the ST300 Softness Tester (in the second half of 2017).  An investment in new casting tooling has led to higher precision castings and optimising of the main rear pivot.

The functionality of the tester remains the same, with both Analogue (ST300A) and Digital (ST300D) versions still available.    As before the ST300D has a USB interface connection which can be utilised for data download. Accessories for this are either USB cable and dedicated software, or Wireless Kit (Radio Module, Receiver and Software).



The ST300 Softness Tester was originally designed by MSA Engineering Systems Limited in conjunction with BLC Leather Technology Centre.   A need was identified for an easy to use non-destructive test instrument, which would produce reliable, repeatable measurements on a range of leather with varying thickness and softness.  Subsequently the ST300 was adopted  as the Industry Standard – ISO 17235 (IULTCS/IUP36).

In 2015 a new version of the standard was released – ISO 17235:2015.   In line with the update to the standard, the calibration requirements for the ST300 Softness Tester are now more stringent.    MSA offers a comprehensive calibration/re-calibration service to the full requirements of ISO 17235:2015.

Note:    Official calibrations / re-calibrations can only be carried out by MSA and its authorised partner(s).

For further details on the ST300 and ST300 calibration service please contact