Dangerous Goods Packaging

Dangerous goods in e-commerce are no longer a niche topic. Cleaning products, spray cans, lithium batteries in devices, perfume, paints, disinfectants, or technical chemicals end up in standard orders every day. Anyone who packs and ships these items like normal goods not only violates legal regulations – they risk fines, shipment stops, liability cases, and reputational damage. Dangerous goods packaging is therefore a distinct process in fulfillment: from SKU classification through approved packaging to correct labeling at the packing station.

This guide explains when goods qualify as dangerous goods, which packaging requirements apply in the warehouse, and how to integrate dangerous goods safely into your packing and shipping process.

What counts as dangerous goods in fulfillment?

Dangerous goods are substances and articles that can pose risks to people, animals, or the environment during transport. In online retail, this frequently includes:

• Aerosols and spray cans (hairspray, cleaners, paint)
• Flammable liquids (nail polish, solvents, alcohol-based products)
• Corrosive or irritating substances (battery acid, strong cleaners)
• Lithium-ion and lithium-metal batteries (single cells, battery packs, devices with built-in batteries)
• Perfumes and fragrances with high alcohol content
• Paints, lacquers, and adhesives
• Disinfectants and medical liquids

Each of these product groups is classified by a UN number and assigned to a hazard class. The UN number determines which packaging is permitted, which quantities per shipping unit are allowed, and which labeling must be applied to the package.

Distinction: Dangerous goods, Limited Quantity, and standard goods

Legal foundations for packaging and shipping

Packaging of dangerous goods is subject to several regulatory frameworks that vary depending on the mode of transport:

1. ADR (road transport) – governing for parcel services and freight carriers in domestic and EU cross-border traffic
2. GGVSEB – German dangerous goods transport act, implementing international requirements nationally
3. IATA-DGR – air transport; relevant for express air freight and international shipments
4. RID – rail transport, less common in e-commerce, but relevant at rail hubs
5. CLP Regulation – product labeling (pictograms, H-statements), supplementing transport regulations

Responsibility for correct packaging lies with the shipper – i.e. the online retailer or their fulfillment service provider acting on their behalf. Both must be able to demonstrate that packaging, labeling, and documentation comply with regulations.

UN packaging: Structure and approval

Dangerous goods may only be shipped in UN-approved packaging, unless an exemption applies. This packaging bears a marking combination, for example:

4G/Y30/S/24/D/BAM 12345

The marking means, in simplified terms:

• 4G – fibreboard box as packaging type
• Y30 – tested for hazard class 3 (flammable liquid), packing group II
• S – for solids or inner packaging made of plastic
• 24 – year of manufacture
• D – country of manufacture Germany
• BAM 12345 – approval number of the testing authority

Structure of a typical dangerous goods package

1. Inner container – bottle, canister, bag, or cell; must be sealed and undamaged
2. Cushioning and filling material – absorbs impacts and, in case of leaks, liquid (vermiculite, sawdust, special absorbent fleece)
3. Outer packaging – UN-approved carton or drum with marking
4. Closure – tear-resistant sealing, tape as required, no resealable openings without trace
5. Labeling – hazard labels, UN number, proper shipping name, LQ marking if applicable

Dangerous goods packaging in the warehouse – process flow

Hazard classes and typical e-commerce products

Labeling and documentation

In addition to product labeling under CLP, additional obligations apply to transport containers:

• Hazard labels (e.g. flame for class 3) on two opposite sides
• UN number and proper shipping name (e.g. UN 1950 AEROSOLS)
• For Limited Quantity: diamond-shaped LQ symbol on at least two sides
• Lithium battery marking for corresponding shipments (handling label)
• Accompanying documents depending on quantity and mode of transport (e.g. dangerous goods transport document where ADR applies)

Labeling must be securely attached, legible, and weather-resistant. Loose labels or incorrectly placed stickers lead to shipment rejection by the carrier.

Integrating dangerous goods into the packing process

Dangerous goods do not fit into the anonymous high-speed packing station for standard goods. Proven fulfillment structure:

Maintain SKU master data

Each dangerous goods SKU requires in the system:

1. UN number and hazard class
2. Packing group (I, II, or III)
3. Maximum quantity per shipping unit
4. Approved UN packaging code (e.g. 4G/Y30)
5. Required labeling and labels
6. Permitted carriers and shipping products
7. Separation prohibitions (e.g. no combination with food)

Separate packing area

• Separated zone with clear signage
• Stock of UN packaging, absorbent material, and hazard labels
• Trained staff with valid dangerous goods training (refresher every two years)
• Four-eyes principle for first shipment of new SKUs

Quality control before handover to carrier

• Visual inspection: inner container intact, closure sealed
• UN packaging marking still valid
• Labeling complete and correctly positioned
• Weight and dimensions within approval limits
• Documentation filed in system (photo optional as proof)

Checklist: Dangerous goods packing release

8 points before carrier handover:

• UN number and shipping name on package
• Correct hazard labels (quantity and position)
• UN packaging marking legible
• Inner container undamaged and sealed
• Absorbent material present for liquids
• Quantity per shipping unit within exemption or approval
• No prohibited combinations in carton
• Accompanying documents attached for mandatory shipments

Carriers, costs, and common mistakes

Not every parcel service transports every type of dangerous goods. Aerosols and lithium batteries are excluded from many standard tariffs or only permitted via special products. Before expanding your product range, clarify:

• Which hazard classes the carrier accepts
• Whether Limited Quantity or only full dangerous goods processes are possible
• Surcharges per shipment and minimum volume
• Returns process for rejected shipments

Typical mistakes in fulfillment

• Dangerous goods shipped as standard package without labeling
• Incorrect or expired UN packaging used
• Multiple aerosols packed exceeding permitted quantity per carton
• Lithium batteries without short-circuit protection (e.g. exposed contacts)
• Dangerous goods combined with food or textiles in the same carton
• Missing training for packing staff – liability remains with the shipper

Dangerous goods in e-commerce – key figures

Cost planning and economic viability

Dangerous goods packaging measurably increases fulfillment costs:

• UN packaging costs a multiple of standard cartons
• Special filling material and hazard labels incur ongoing material costs
• Longer packing times due to manual inspection steps
• Carrier surcharges for dangerous goods and LQ shipments
• Training and certification effort for staff

Nevertheless, a proper process pays off: A single rejected shipment, transport damage, or fine case often exceeds the additional costs of a year of UN packaging material. Those who identify dangerous goods SKUs early can also calculate packing variants and shipping rates in the shop, rather than losing margins retrospectively.

Standard vs. dangerous goods packaging

For corresponding SKUs, dangerous goods packaging is mandatory – the higher costs are unavoidable, but can be managed through early calculation and proper processes.

Related topics

• Oversized goods and special packaging
• Protection and product safety
• Quality control during packing
• Labels and inserts
• Packaging types overview

Last updated: July 6, 2026