Any dangerous goods or materials correspond to a four-digit UN number. These numbers are displayed on warning signs for example during the transport of hazardous goods.
Firefighters, cargo pilots or conductors need easy and quick access to all relevant information when handling dangerous materials. For example in case of accidents or leaks. Our app “UN Number” delivers results after just a few clicks – and helps to avoid, reduce and prevent dangerous incidents for humans and the environment.
Client
Zweidenker GmbH
Development
iOS || Android || Mobile || Backend
Download
App Store
Google Play
Features
- User-friendly interface with quick access to relevant information: enter the UN number using a large numeric keypad
- Clear layout and easy to read display of ERI-Cards in a table (structured by 7 main topics)
- Access to further information, such as a search aid for the “Hommel Handbuch der gefährlichen Güter” (benchmark for the transportation of dangerous goods)
- Data and user interface in many different languages
- In-app purchases (NFPA 704, ADR Infos, Hommel pages)
- No internet connection necessary
- Updates data independently of updates for the app


One App – Many Numbers
The number to identify hazards is an identification which is unified for all dangerous substances. For example, the number “3” stands for “flammability of liquids”. A doubled number indicates a particularly high risk. If there is only one hazard, the second digit is replaced by a zero.
The UN Number app is implemented as a native application for Android and iPhone and has also been optimised for use on the iPad.