Hazchem Code kya hai || Hazchem Code Kaise padhe?

[@ezazuddinkhan3150]

Thanks

[@zaidimtiyaz317]

Thank you sir 💙

[@girishdubey1405]

Sir Petrol ko paani me baha denge toh kya hoga?

[@amolbhalekar2973]

Uan number????

[@SAFETYMGMTSTUDY]

A UN number is a four-digit number that identifies dangerous goods such as explosives, flammable liquids, oxidizers, and some acutely toxic substances.
For different chemical there are different UN Number