According to datasheet, mechanical robustness is conforming to IEC 60068-2-27, but we are afraid this is a mistake, because right IEC standard is 60068-2-31 for free fall.
The IEC 60068-2-27 is concerning the shock resistance, actually we mention these values for all our products.The IEC 60068-2-31, as you say is concerning the “free fall” tests, actually our product must fulfil this exigency."