UN-marking
Content
No1 u + n
No 2 Type of packing and production material
No 3 Packaging group
No 4 Test pressure or approved for solids (S)
No 5 Year of manufacture (if plastic - generelly max age 5 years)
No 6 Country for the testing
No 7 Id-no for the tests
Explanation for No 2
1 BARREL
3 CONTAINER
4 BOX
5 SACK
6 INTEGRATED PACKAGING
0 PACKAGING THIN SHEET METAL
A STEEL
B ALUMINIUM
C WOOD
D PLYWOOD
F WOOD FIBER MATERIAL
G PAPERBOARD
H PLASTIC MATERIAL
L TEXTILE FABRIC
M PAPER, MULTI-LAYER
N METAL (OTHER THAN STEEL OR ALUMINIUM)
P GLASS, PORCELAIN OR STONEWARE
Packaging groups:
X = PG I, PG II, PG III
Y=PG II, PG III
Z = PG III
Year of manufacture and month (Nov. -99). Can be found anywhere on the container. Valid for plastic containers.
Note that the age of plastic container must not exceed 5 years. There may be exeptions if the substance has properties that makes the container aging earlier. For details about packaging - read ADR-S chapter 4.1.1.15.