Transport of dangerous goods

The transport of dangerous goods requires special care and technical attention. Carriers must be especially precise and delicate in order to consistently ensure the integrity of the cargo and make sure it never faces any dangerous situations. Our team of certified professionals is aware of these facts and works conscientiously to ensure the successful transport of dangerous goods, when needed.

Transport service of hazardous goods

At Transvolando we are specialists in the transport and transfer of hazardous goods nationwide. Depending on the type of cargo and distance, we adjust to the specific needs of each shipping request to carry out our transport service.


The main priority during the transport of hazardous goods is safety. We make sure to ensure safety throughout our transport service for both personnel and cargo, as well as for the environment.


We are dedicated to ensuring the effective and efficient transport of your cargo from the pick-up point to drop-off point, guaranteeing the merchandise’s integrity and optimizing our service.


Our service guarantees the shortest possible time between loading and unloading during the transport of dangerous goods, all the while following the necessary safety and regulatory measures.

What are hazardous goods?


Modern development and technological evolution has led to the emergence of new materials and products produce components that, due to their composition, can pose a danger to our health.

In this sense, dangerous goods are defined as substances or products that, during the process of production, handling, storage, displacement, or through normal use, can generate gases, vapours, fumes and/or other components that may cause harm to our health. These materials can also ignite, explode or corrode, causing collateral damage that can be material, environmental or personal.

transporte de mercancías peligrosas


The classification criterion followed for hazardous goods one that is proposed by a group of experts at the UN. The document that defines the current regulations regulating the national and international transport of dangerous goods by road is defined by the information provided in this document.

Transport requirements call for a distinction between two groups of hazardous materials: those that need to be explicitly named and require express authorization and those that aren’t limited in such a way and can be transported in general groups. 

According to this concept, the established categories are the following:

Class 1. Explosive materials and objects

This category includes the most dangerous type of goods. This includes not only explosive goods themselves, but also any material that under certain conditions may cause explosions or fires, either due to their exposure to high temperatures, due to friction or any other circumstances that may modify their chemical nature. Given its high level of danger, transport of this type of cargo is specifically regulated. Contained within this group are pyrotechnic materials such as rockets and fireworks.

mercancías explosivas explosión en masa mercancías explosivas explosivo proyección mercancías explosivas explosvio incendiario mercancías explosivas pequeño riesgo explosión mercancías explosivas explosivo muy poco sensible mercancías explosivas explosivo extremadamente poco sensible

Class 2. Gases

This category includes a diverse group of substances that imply a set of different risks. These risks include toxicity or flammability, and have specific gaseous characteristics under certain conditions. These materials include compressed gases, such as nitrogen and oxygen, liquefied gases such as butane or propane, pressurized gas cartridges, aerosols, etc.

transporte gases inflamables transporte gases tóxicos gases no inflamables no tóxicos

Class 3. Flammable liquids

This is a type of liquid that ignites when it comes into contact with a flame or high temperatures. This category includes liquid fuels, such as gasoline or diesel, as well as alcohols, varnishes, etc.

transporte líquidos inflamables

Class 4.1. Flammable solids

These are substances in a solid state that can burn or spark under the influence of heat. Some can also generate toxic gases in their combustion. This category includes wood, celluloids, phosphorus compounds, etc.

transporte de materias sólidas inflamables

Class 4.2. Matter susceptible to spontaneous combustion

This category contains those products that can either ignite spontaneously when they come into contact with the air in small quantities, or those that don’t ignite, but can warm up. This includes white phosphorus, greasy and oily fabrics, etc.

transporte de materias sólidas espontáneamente inflamables

Class 4.3. Matter that, when in contact with water, emits flammable gases

Here we find materials that when reacting with water, release flammable gases, and when they come in contact with air, can cause explosions. This includes substances such as metal hydrides, sodium, potassium, etc.

transporte de materias sólidas contacto agua desprenden gases inflamables

Class 5.1. Oxidising or comburent substances

These materials are not combustible themselves but are materials that release oxygen and can cause the combustion of others. This includes for example, stabilized hydrogen peroxides, chlorites, per carbonates, etc.

transporte de materias oxidantes o comburentes

Class 5.2. Organic peroxides

These are substances that are similar to oxidisers but, as they are more unstable, they have a higher probability of combustion.

transporte de peróxidos orgánicos

Class 6.1. Toxic materials

This category contains a great variety of substances that don’t have much in common chemically, but are all characterized by presenting a high degree of toxicity to humans, the environment and animals. Examples of material in this category are cyanides, arsenic compounds, etc.

transporte de materias tóxicas

Class 6.2. Infectious substances

This category includes substances that contain pathogens that nay cause diseases to both animals and humans. This includes microorganisms, such as viruses and bacteria, etc.

transporte de materias infecciosas

Class 7. Radioactive materials

These materials emit certain particles and radiation that causes damage to the cellular tissue. This category includes nuclear fuels, radioactive isotopes, etc.

transporte de materias radioactivas transporte de materias radioactivas A transporte de materias radioactivas B transporte de materias radioactivas C transporte de materias fisionables

Class 8. Corrosive substances

Due to their composition, these substances can cause damage to skin and mucous membranes. In the case of leakage, these substances can cause deterioration of the elements with which they come into contact. Acids and corrosive salts fall into this category.

transporte de materias corrosivas

Class 9. Other dangerous matter and objects

During transport, this type of cargo may pose hazards that differ from those contemplated in the previous categories.

transporte de materias y otros objetos peligrosos

Last class: Toxic and dangerous waste

In this last category we include all types of containers that have contained any of the substances described in the previous sections. Their transport, likewise, must be regulated specifically to avoid danger and damage.

transporte de materiales peligrosos para el medio ambiente


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Reasoning behind the regulations for the transport of hazardous goods

It’s clear that there are a high number of dangerous substances that exist, and their transport involves multiple risks that must be taken into account. For these reasons, it’s extremely important for transport companies to follow a strict set of requirements in order to ensure that the transport of hazardous goods is carried out with the maximum safety guarantees for the people involved, the environment, and vehicles that come into contact with the dangerous cargo.

Identification and signage for the transport of hazardous goods

Danger labels

The goal of these labels is to indicate the type of risk posed by the dangerous substance that the cargo contains, making it easily recognizable. These labels must be placed on the merchandise or containers that contain the dangerous substances. These labels must also be placed on the transport vehicle in a visible area.

Subject identification number

Composed by four figures, this number determines the type of hazardous matter contained in the cargo. These numbers are taken from the official UN list of hazardous material, where it recommends the use of these ID numbers for the transport of dangerous goods (Orange Book).

Hazard identification number

This is an alphanumeric code consisting of two or three digits that are oftentimes accompanied by the letter X. This number identifies the type of risk that is associated with the substance that is being transported.

Orange panels

These panels are placed inside the transport vehicle, usually in the front and back, and identify the nature and danger of the material being transported. They are orange, with black reflective edges, making them visible even in adverse weather conditions (low light or fog). Their average size is 30x40 centimetres. The panel includes the material’s identification numbers and the dangerous characteristics in black.

ADR: European Agreement for the Transport of Dangerous Goods by Road

The ADR is a European-level treaty that was drafted by the UN expert group in Geneva in 1957 and was signed by 32 countries. It establishes a series of recommendations that have served as a basis for developing common rules that apply to the entire European territory.

The agreement establishes a difference between very dangerous substances, which cannot be transported precisely because of the high risks involved, and the rest of hazardous materials that can be transported under certain circumstances:

  • Packaging and labelling must be follow requirements of the agreement
  • Road transport vehicles must comply with the requirements established in the terms of equipment, construction and use that are given.

The ADR is a pact between countries and is not mandatory. Consequently, there is no competent authority that can ensure compliance, leaving this responsibility to transport controls carried out on the road. However, European and national laws have been developed in accordance with the agreement’s provisions, guaranteeing compliance.


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