Modular Phytosanitary Laboratory Container: Uses, Conversions and Possible Fit-Outs

What is a modular phytosanitary laboratory container?

The modular phytosanitary laboratory container is a solution designed for storing and handling plant protection products under enhanced safety conditions. It is based on the proven structure of a shipping or storage container, converted into a technical room or field laboratory. Its central element is an integrated retention sump, placed under a galvanised grating floor. This system contains any accidental liquid spill, whether from a leaking can, a spill during decanting or a simple drip. The raised grating keeps packaging off the bottom of the sump, which facilitates cleaning and limits corrosion.

The structure is made of Corten steel, a low-alloy steel that develops a stable protective oxide layer on its surface, suited to outdoor environments and damp atmospheres. The walls and roof come from standard shipping containers, whose rigidity and watertightness are well known. The original 28 mm marine plywood floor can be kept or replaced depending on use, but in the case of a phytosanitary container, the technical grating floor takes priority. Ventilation is provided by a dedicated grille, allowing natural air renewal and limiting the build-up of vapours. This point is essential for storing classified products, as a confined atmosphere can present risks of volatile compound accumulation. The grille can be fitted with a filter or a regulation system if the need is identified.

The container is also fitted with double rear doors with container locks, offering wide access for loading and unloading, including with a pallet truck or small trolley. The closure is robust and can take a padlock or an additional locking system. The whole unit is mobile: thanks to the ISO corner castings at the four corners, the container can be lifted, set down and transported by standard handling equipment (forklift, crane, container truck). This mobility allows the room to be moved on a site, removed at the end of a project or repositioned as needs change.

Sector uses of the phytosanitary container

Farms

On large-scale arable farms, the phytosanitary laboratory container often serves as the main storage room for treatment products, but also as a mixing area for spray solutions. The presence of a water point and a sink allows spray equipment to be rinsed and rinse water to be collected in the retention sump or in a dedicated container. This practice prevents residues from being released into the natural environment, which is a regulatory obligation in many cases. The container can be positioned near the sprayer filling area, which reduces handling and the risk of spills.

Agricultural cooperatives

In agricultural cooperatives, the container can be used as a distribution or collection point for products, with a counter and shelves. It allows products to be separated by hazard class and storage rules to be respected. Centralising products in a single room facilitates stock management, expiry date control and traceability. It also limits the risk of mixing or cross-contamination.

Agricultural contracting companies

In agricultural contracting companies, the mobile container follows the work sites: it can be dropped on a plot or at a temporary depot, then moved. This mobility is an asset for teams working on several sites. The container can be fitted with a quick mooring system to facilitate transport.

Local authorities and green space services

In local authorities, green space services use this type of container to store plant protection products, but also protective equipment and small tools. Regulations govern the use of plant protection products in public spaces, and a dedicated room makes it possible to comply with safety distances and ventilation conditions. The container can be integrated into a green space management plan.

Research organisations and experimental stations

In research organisations and experimental stations, the laboratory container can be fitted with a bench, a sink, a fume hood or an air filtration system. It then serves as a field laboratory for sample preparation or rapid analysis. It can also be used for formulation trials or field tests.

Agricultural training

In the field of agricultural training, it can become a teaching aid to explain good storage and handling practices. Trainees can see the safety equipment and procedures in concrete terms.

Isolated sites

Finally, in areas not connected to the electricity grid, the container can be fitted with solar panels and batteries, making it self-sufficient. This option is useful for isolated sites.

Possible conversions and fit-outs

Customisation is a key point of this product. Depending on the configuration, it is possible to add an electrical supply (panel, sockets, lighting), thermal insulation (panels, mineral wool, foam), shelves or racking, air conditioning or heating, a roller shutter, an access ramp, a decontamination airlock, a water point or a sink. These options turn the container into a genuine field laboratory or preparation room. The use should be defined precisely before ordering: simple storage, spray solution preparation, rapid analysis, storage of protective equipment, etc.

Thermal insulation

Thermal insulation is often recommended if the container is to hold products sensitive to heat or cold, or if an operator is to work inside. Insulation with sandwich panels with a rigid foam core offers good thermal performance. It can be supplemented with a vapour barrier to prevent condensation.

Air conditioning and heating

Air conditioning can be added to maintain a stable temperature, particularly for certain products that must be kept frost-free. A heating system may be necessary in winter. This equipment must be sized according to the internal volume and the insulation.

Electricity

Electricity must be installed in accordance with current standards (NF C 15-100 for low-voltage installations). It is advisable to call on a qualified electrician for connection, earthing and residual current protection. Waterproof LED lighting is suitable for damp atmospheres. Power sockets can supply laboratory equipment, scales, stirrers or computers.

Ventilation and filtration

Ventilation can be natural or mechanical. Mechanical ventilation with heat recovery (MVHR) can be considered to renew the air continuously. In all cases, extracted air must be discharged outside, away from fresh air intakes and occupied areas. An activated carbon filter can be added if organic vapours are present.

Securing access

The roller shutter is a practical option for securing access when the double doors do not need to be opened. It can be motorised or manual. The access ramp facilitates the entry of trolleys and pallet trucks; it must be suited to the load and the floor height. An entrance airlock can be fitted to limit air ingress and create a transition zone.

Interior fit-out

The interior fit-out can include metal shelves, safety cabinets, a worktop, a sink with water collection, or a storage area for personal protective equipment. The container can be fitted with fire extinguishers, spill kits and standardised pictograms.

How to choose the size and type of container?

The 20-foot dry container is the most common for this type of fit-out. Its internal length of about 5.90 m, width of about 2.35 m and height of about 2.39 m offer a useful volume of about 33 m³. It is easy to transport, as it can be loaded onto a standard truck without an exceptional convoy. Its empty weight, generally between 2.2 and 2.5 tonnes, allows it to be installed on a stabilised platform without heavy foundations.

The 40-foot dry container offers an internal volume of about 67 m³, i.e. double. It is suited to large storage needs or to fitting out several areas (storage, preparation, office). However, its transport requires a suitable truck and its installation may be more complex. The 40-foot high cube container gains about 30 cm of internal height, which improves working comfort and allows taller shelves to be installed.

The open top container, with an opening roof, is useful if tall equipment must be loaded, but it is less watertight. The flat rack container, without side walls, is not suited to a closed room. The reefer container, fitted with a refrigeration unit, is designed for transporting perishable goods; it can be converted into an air-conditioned room, but its cost and maintenance are higher. For storing plant protection products, the standard dry container remains the most relevant, as it is watertight, robust and easy to fit out. The storage container, often called a "site container", can also serve as a base. It is generally lighter and lower, but it may be sufficient for simple use. Its strength and watertightness must be checked before fitting it out.

Regulations and good practices

The retention sump is sized to collect a volume at least equal to the capacity of the largest stored container, in accordance with good retention practices. In the case of plant protection products, French and European regulations impose specific storage conditions: a closed, ventilated room, away from water points, with a suitable retention system. The modular laboratory container meets these requirements by design, subject to correct installation and compliant use. It is important to note that regulations may change and that the operator must check the texts in force (in particular the orders relating to the storage of plant protection products).

In France, the transport of shipping containers is governed by the Highway Code and transport safety rules. A 20-foot container can be transported on a container truck or a suitable trailer. The total weight of the vehicle and its load must not exceed regulatory limits (40 tonnes for a standard road train, unless exempted). The driver must ensure that the container is properly secured, that the locks are engaged and that the centre of gravity is respected. The transport of dangerous goods, if the container is used to transport classified plant protection products, is subject to ADR (European Agreement concerning the International Carriage of Dangerous Goods by Road). In this case, the container must comply with ADR requirements, with appropriate marking, and the driver must hold specific training. It is important to distinguish between transporting the empty (or fitted-out) container and transporting dangerous goods inside it. The phytosanitary laboratory container is generally transported empty, then loaded on site. If dangerous goods are to be transported, ADR regulations must be respected and a suitable container used.

For on-site installation, it is recommended to provide a stabilised, level area accessible to lifting equipment. A concrete slab or compacted ground may be sufficient. The container should be placed on blocks or crossbeams to avoid direct contact with the ground and allow air circulation. This precaution limits corrosion of the floor and walls. If the container is intended to remain in place, it can be anchored to the ground to withstand strong winds. In flood-prone areas, it is advisable to raise the container. Finally, it is useful to check local planning rules before installation, as a container may be considered a structure and require authorisation. In most cases, a container used as a temporary technical room is not subject to a building permit, but it is prudent to check with the town hall.

Care and maintenance

Container maintenance is simple but regular. The retention sump and grating should be inspected after each product handling operation, any splashes should be cleaned with appropriate absorbents, and the ventilation should be checked. Corten steel walls can be cleaned with clean water; aggressive chemicals should be avoided. An annual check of seals, locks and lifting points is recommended. When storing classified products, it is prudent to keep a register of incoming and outgoing goods and to display safety instructions inside.

The retention sump must be emptied and cleaned after any spill. Residues must be disposed of in accordance with hazardous waste regulations. The galvanised grating can be removed to access the sump. It is advisable to check the condition of the galvanising and touch up any corroded areas with a suitable paint. The ventilation grille must be kept clean; a filter, if present, must be replaced at the frequency recommended by the manufacturer. Door seals must be checked and replaced if cracked, to preserve watertightness. Hinges and locks must be lubricated regularly. The roof should be inspected for any perforation or early corrosion. The ISO corner castings must be checked before each lift. An annual maintenance plan can be drawn up, with a full visual check and work on sensitive points. When storing chemicals, it is recommended to clean the interior walls with a damp cloth and a mild detergent, then rinse. Aggressive products must not be used without checking compatibility with Corten steel and the galvanising. Operator safety requires the wearing of personal protective equipment (gloves, goggles, mask) during handling. A first-aid kit and an eyewash station can be installed nearby. Finally, it is useful to keep a maintenance log and report any anomaly.

Points to watch when buying

Points to watch when buying concern the quality of the base structure (check for perforating corrosion, the condition of seals, the flatness of the floor), the compliance of the retention sump (volume, watertightness, material compatible with the stored products), ventilation (sizing, filtration), the electrical installation (standards, protection), and handling (ISO corner castings in good condition). It is recommended to request a layout plan and to check that the container can be delivered and set down on site. Transport to the place of use may require a crane truck or a container carrier with a lifting arm. The price shown is a base rate for a fitted-out container; options and customisation may vary the cost. It is advisable to request a detailed quote based on specific needs.

In summary, this modular phytosanitary laboratory container combines the robustness of a shipping container, the safety of a retention sump and the flexibility of a custom fit-out. It offers a mobile, durable and functional solution for storing and handling plant protection products, while facilitating compliance with good pollution prevention practices.