Date:

February 26, 2025

Categories:

Company, Products, Tips & Tricks,

Half warning signs in hazardous goods transportFlexibility and efficiency with ADR-compliant labeling

The orange warning sign is an essential part of dangerous goods labeling in road traffic. However, there is not always enough space for a full-size sign. This is where half warning signs with a reduced size (300 x 120 mm) come into play. These offer flexible and ADR-compliant labeling, especially for vehicles with limited space or varying UN numbers.

Legal basis: Half warning signs

The regulations for the use of the orange warning sign are precisely regulated in the ADR (European Agreement concerning the International Carriage of Dangerous Goods by Road). According to ADR 5.3.2.2.1 the following applies:

  • The standard size of an ADR warning sign is 400 x 300 mm.
  • If the vehicle design does not allow a full-format warning sign, a reduced size of 300 x 120 mm may be used instead.
  • The width of the black border must be 10 mm, with a tolerance of 10% allowed.
  • Half an ADR warning sign usually only shows the UN number of the dangerous goods being transported.

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These regulations ensure that the dangerous goods label remains clearly visible and compliant even on smaller vehicles or in confined spaces.

Half ADR warning signs are particularly useful in the following cases:

Possible applications for half warning signs with reduced size

1. Vehicles with limited space

In smaller vehicles such as vans or sprinters there is often not enough space for an orange warning sign. Thanks to the reduced size (300 x 120 mm), companies can still ensure ADR-compliant labeling.

2. Flexible labeling with UN numbers

Some transports require frequent adjustments to the dangerous goods labeling. The UN number can be customized using empty half warning panels in combination with interchangeable number labels (0-9). This is ideal for companies that transport a variety of dangerous goods.

3. Combination with Placards

If a transport requires full-surface labeling with placards, half warning signs with individual UN numbers can be ideally combined with these. This ensures clear and complete dangerous goods labeling.

Advantages of half warning signs for the transportation of hazardous goods

The reduced size half ADR warning board offers numerous advantages:

  • Space saving: Perfect for vehicles with limited space.
  • Flexibility: Empty warning signs can be quickly adapted to new UN numbers using number labels.
  • Cost efficiency: Reusable boards reduce material costs.
  • ADR conformity: Permits marking with 300 x 120 mm panels according to ADR 5.3.2.2.1.

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We offer the following products to cover various applications:

Product solutions for ADR-compliant labeling

1. Half warning signs (300×120 mm)

Our blank ADR warning signs serve as the basis for flexible dangerous goods labeling. They are weatherproof, reflective and durable, ADR compliant and have strong adhesive and are ideal for changing UN numbers in combination with number labels

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2. Number labels (0-9) for half warning signs

Our BS 5609 certified number labels are specifically designed for use on half ADR warning signs. They offer the dimensions: 85 x 58 mm, 10 pieces per sheet, resistance to oil, dirt and UV radiation and a
Strong adhesion for permanent marking

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3. Pre-printed half warning signs

For companies that frequently transport the same dangerous goods, we offer pre-printed ADR warning signs with UN numbers. These save time and offer reliable, long-lasting dangerous goods identification.

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Conclusion: Flexible and ADR-compliant hazardous goods labeling with half warning signs

The half orange ADR warning sign is the ideal solution for vehicles with limited space or changing hazardous goods transports. Whether as a blank panel with number labels, a pre-printed version or in combination with placards – our solutions offer maximum flexibility and safety.

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Contact us today to find out more about our hazardous goods labels and other intralogistics solutions and to arrange a personal appointment.

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