Solution : https://service.sap.com/sap/support/notes/395985 (SAP Service marketplace login required)
Key words : 
health & safety -> product safety -> basic settings -> set, prerequisites causea consistent data retention, additional key words ehs27asp00ehs27bsp00ehs27bsp01language support, directory 'general/r3server/abap/note, e-mail globalization@sap, possibly additional reports, nls focus group, native language support, release notes eh&, ebcdic character sets
Related Notes : 
       
| 394519 | Installation of SAP EH&S 2.7B/4.5B | 
| 393855 | Installing SAP EH&S 2.7B/4.6C | 
| 392841 | Installation of SAP EH&S 2.7B/4.6B | 
| 391318 | EH&S 2.7B corrections: Support Package 01 | 
| 357465 | Corrections EH&S 2.7B | 
| 73606 | Supported Languages and Code Pages |