UN dangerous goods numbers
are internationally recognized numbers assigned by the United Nations Economic Commission for Europe (UNECE). They are used to uniquely identify dangerous goods and are valid worldwide.
Character key
The symbols are coded as follows:
1) symbol UN: Symbol for marking UN-approved packaging. Symbol must come first. UN stands for United Nations.
2) 3H1: Packaging code
Digit 1: Type of packaging: here canister
Digit 2: Material; here plastic
- A=steel
- B=Aluminum
- C=Wood
- G=cardboard
- H=Plastic
Digit 3: Packaging type; 1=bung, 2=lid
3) Y1.9: Permissible filling material
Digit 1:
- X=packaging group I (for filling goods of substance group a),b)+c) of the list of substances
- Y=packaging group II (for filling goods of substance group b)+c) of the list of substances
- Z=packaging group III (for filling goods of substance group c) of the list of substances
(see also Appendix A.5, marginal 3511).
The substance group is divided as follows:
- a)=very dangerous filling goods
- b)=dangerous filling goods
- c)=less dangerous filling goods
Digit 2: Permissible density of the filling material. See also Appendix a.5, marginal 3552, 4
4) 200/ Target value for internal hydraulic pressure in kilopascals, 200lPa=2 bar (see also Appendix A.5, marginal 3512) For solids, an S stands for solid instead of the internal pressure.
5) 07/ Year of manufacture
6) D: Abbreviation of the country in which the approval was granted
7) BAM: Abbreviation of the responsible approval authority
8) 12345 Approval number of the competent authority
9) XY Abbreviation of the manufacturer
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