The ERGTool allows you to take the Emergency Response Guidebook 2008 with you wherever you go. It provides a convenient lookup mechanism based on UN Number and the name or partial name of the material. The Guidebook entries plus the initial evacuation and isolation distances are provided.
The second item in the app is the inclusion of the signs of a Clandestine Meth Lab as provided by the US Drug Enforcement Agency. You can always have this information right at your fingertips.
The third item included is an optional download of the National Institute for Occupational Safety and Health Pocket Guide to Chemical Hazards. This feature places a self contained version of the guide on the sdcard of your phone for instant access without a network connection.
The final piece just added is a new capability suggested by a user. The new capability provides the ability to record hazmat events or exposures. The records contain the time, date, type of the event (hazmat spill, accident, etc.), length of exposure and a section for you to enter notes about the event. This set of records exported to a tab separated file that can be emailed and imported into Excel.
Also included is a home screen widget that allows you to quickly look up the UN number for time critical uses.
***NOTE***
If you move the app to the sdcard to save memory with Android 2.2 - Froyo, the Homescreen widget will be unavailable. This is a limitation of Android, not the app unfortunately, so there is nothing that can be done about it.