A sample UN Marking:  1H2 / Y1.8 / 100 / 2012 / F / DB / 1195

UN

The United Nations Coding System

1

Type of Container

  1. 1 = Drums/Pails
  2. 2 = (Reserved, formerly Barrels)
  3. 3 = Jerricans
  4. 4 = Boxes
  5. 5 = Bags
  6. 6 = Composite Packaging
  7. 7 = (Reserved, formerly Pressure receptacle)

H

Material of Construction
Steel = A
Aluminum = B
Natural wood = C
Plywood = D
Reconstituted wood = F
Fibre = G
Plastic = H
Paper = M
Metal (Other than steel or aluminum)= N
Glass = P

2

Category Within Type

1.    Closedhead (non-removable lid)
2.    Openhead (open-top removable lid)

Y

Packaging Group for which container was tested

X.    for Packaging Group I, II, III
Y.     for Packaging Group II and III
Z.    for Packaging Group III

Packaging Group I: Great Danger - high hazard level
Packaging Group II: Medium Danger - medium hazard level
Packaging Group III: Minor Danger - low hazard level

1.8

Density (relative density) or specific gravity of material packed
OR
For packaging intended for Solids (powders, pills, capsules, tablets) or that have inner packaging, this marking will indicate the maximum gross mass (weight) in kilograms.

100

Hydraulic pressure (vapour pressure) in kilo-Pascal (100 kPa = 1 bar)
OR
For packaging intended for Solids or that have inner packaging, an "S" in upper case will follow the gross mass.

12

Year of production (2012)

F

Country where container was manufactured

DB

Code for manufacturing plant

1195

Reference of UN homologation report

Ref.
UN Recommendations on the Transport of Dangerous Goods - Model Regulations Eighteenth revised edition