Start the converter by clicking the "Converter" menu item on the left. An input mask appears that first asks for the name of the substance/mixture and, if appropriate, its CAS, EC or index number. Subsequent masks ask for hazard symbols, risk phrases, the UN number (if appropriate with packing group, classification code or type) and the physical state.
All masks are self-explanatory. In most cases, help on using the program and explanations on its contents are available by clicking the "Further information" button or an additional "Help" link at the top right of the page.
If you have any questions relating to the program outputs and other operating details, you can also look under "Description". Please also feel free to use the contact form. Telephone numbers and address details can be found under "Contacts".