ইউএন নম্বর: সংশোধিত সংস্করণের মধ্যে পার্থক্য

 

== বহিঃসংযোগ ==

* [http://www.unece.org/trans/danger/publi/unrec/12_e.html ঝুঁকিপূর্ণ পণ্য পরিবহনে ইউএন-এর পরামর্শ।] Part 2 defines the hazard classes and their divisions and Part 3 contains a complete list of all UN numbers and their hazard identifiers.

* The [http://hazmat.dot.gov/pubs/erg/gydebook.htm Emergency Response Guidebook] from the U.S. Department of Transportation contains a list of all assigned NA numbers along with recommended emergency procedures.