UN certification for packaging

UN Packaging Codes

Purple Diamond is among a select few companies that are authorized by PHMSA  as an approved third-party package-testing laboratory in accordance with Hazardous Materials Regulations.

Hazardous materials packaging must successfully complete testing before it can be used for the transport of product. Failure to comply with these regulations can result in serious injury to the people handling the package and fines to the shipper of the product. Purple Diamond can perform all the testing required for your product to ensure that it is capable of exceeding all the typical road hazards experienced during transportation.


  •  UN — The container meets the UN certification standards.
  • 1A1 Package type — Closed Head steel drum
  • Y Packing group — meets requirements of packing groups II and III
  • 1.4 Specific gravity — 1.4.
  • 100 Hydrostatic test pressure — The container is tested to withstand 100 kpa
  • 16 year of manufacturing
  • USA (Country of manufacture)
  • +CN1111 (Symbol UN certifying agency)

UN Packaging Codes

The United Nations Coding/Marking System
Type of Package 1 = Drums/Pails 2 = Barrels 3 = Jerricans 4 = Boxes 5 = Bags 6 = Composite Packagings
Material of Construction: A = Steel B = Aluminum C = Wood D = Fibre F = Reconstituted wood G = Fiberboard H = Plastic
Category Type: 1 = Closed Head 2 = Open Head
Packaging Group for which container was tested: X = Packaging Group I, II, III Y = Packaging Group II and III Z = Packaging Group IIIPackaging Group I: Great Danger – high hazard level Packaging Group II: Medium Danger – medium hazard level Packaging Group III: Minor Danger – low hazard level
Maximum Gross mass or Specific Gravity Packaging intended for Solids: (powders, pills, capsules, tablets) or that have inner packaging, this marking will indicate the maximum gross mass (weight) in kilograms.   Packaging intended for Liquids: Density or specific gravity of material packed
Solids or inner Packaging Hydraulic pressure in kilo-pascal (kPa) OR For packaging intended for Solids or that have inner packaging, an “S” in upper case will follow the gross mass.
Year of Manufacture Current Year
Location of manufacture Country where container was manufactured
Manufacturer code Code for UN certifying agency or manufacturer