A scientist in a lab coat and gloves is bending down to retrieve a green liquid in a bottle from a cabinet, while another person sits at a table in the background.

Fire protection

What do I need a safety storage cabinet for?

When handling hazardous substances, the utmost care is essential. Our technology with maximum fire resistance helps you achieve this. Thanks to their special design, our safety storage cabinets guarantee 90 minutes of fire resistance, type-tested in compliance with DIN EN 14470-1. In the event of a fire, DÜPERTHAL safety storage cabinets with a Type 90 fire resistance rating allow sufficient time for workers to leave the room and allow fire fighters enough time to access the laboratory. All before the flammable substances stored there enable a small, extinguishable fire to become an uncontrollable inferno. The cabinet is tested under fire conditions as standard. Each cabinet model is type-tested in a fire chamber in accordance with DIN EN 14470-1.

The fire starts

The fire alarm is activated
Evacuation of personal starts

5 - 10 minutes after the fire starts

The employees are outside the danger zone
The fire service is on its way to the site

10 - 15 minutes after the fire starts

The fire service is at the source of the fire
Safety storage cabinets with a fire resistance of only 10 minutes stop working at this point
The flammable substances are no longer safely stored
The fire service must fight the fire with a considerably increased risk
Increased damage can be expected

90 minutes after the fire starts

Your advantages with the 90-minute technology

Type 90 safety storage cabinets continue to function for 90 minutes
The critical hazardous substances are stored safely for at least 90 minutes
The fire service has considerably more time to extinguish the fire safely
Reduction of the fire load and minimisation of damage

How does a safety storage cabinet work?

Fire chamber test in accordance with DIN EN 14470-1

The fire resistance rating of safety storage cabinets in accordance with DIN EN 14470-1 is determined by the rise in temperature of the cabinet interior inside a fire chamber, based on the temperature/time curve set out in DIN EN 1363-1. Based on an initial temperature of 20 +/- 5 °C and the time it takes for the temperature in the cabinet interior to increase by max. 180 Kelvin, the cabinet is then classified as Type 30, 60 or 90 (corresponding to the time in minutes). Safety storage cabinets for compressed gas cylinders complying with DIN EN 14470-2 are subjected to a comparable test, see here for details.

Compressed gas cylinders | DIN EN 14470-2

Your technical advantage

A graph showing temperature versus time with curves representing NFPA 30 and DIN EN 14470-1 standards, used for safety ratings of materials.

US standards in accordance with FM/UL, NFPA 30

Max. permissible temperature in cabinet as per FM/UL = 163 °C (325 °F).
Temperature curve according to NFPA 251 in the open fire chamber.
Example of the rising temperature in an FM/UL cabinet during the fire test, monitored with one thermometer.

European standard DIN EN 14470-1

Max. permissible temperature in the cabinet in accordance with DIN EN 14470-1 = 200 °C (392 °F).
Temperature profile in accordance with DIN EN 1363-1 in the closed fire chamber.
Example of the rising temperature in a Type 90 cabinet during the fire test, monitored with eleven thermometers.

Your economic advantage

Calculation example (average values)	US standard FM/UL, NFPA 30	European standard DIN EN 14470-1
Safety cabinet purchase cost	2,400 €	3,277 €
Tested fire resistance	10 minutes	90 minutes
Cost effectiveness	240 € per minute	37 € per minute

Special design provides 90 minutes’ safety

The doors and the cabinet exterior are made of powder-coated sheet steel.
The interior and the insides of the doors are made of high-quality panels.
There is special insulation between the interior and exterior, so heat cannot penetrate the cabinet interior in the event of a fire.
In the event of a fire, doors, drawers and ventilation openings for the air supply and exhaust air are closed automatically. The door gaps and open joints are sealed by foam-forming seals.

Your benefits with Type 90 DÜPERTHAL safety storage cabinets

In the event of a fire, chain reactions are avoided.
Employees and the fire and rescue services will be protected.
Maximum fire protection for buildings and equipment.
Potential reduction in insurance premiums for fire protection.
Financial security, e.g. by reducing the risk of interruption to production or unavailability of buildings.
Compliance with risk management requirements as per ISO 9000 and ISO 14001.
Use of high-quality safety storage cabinets conserves resources and enhances your company’s image.

Test criteria, protection objectives and minimum requirements

The three essential requirements for a safety storage cabinet in accordance with DIN EN 14470-1 are: minimisation of the risk of fire, minimisation of fumes released into the work environment, and retention of any leakages. The test requirements of the laboratory furniture standard DIN EN 14727, or the new DIN EN 16121 and DIN EN 16122, also guarantee a minimum level of quality.

Extracts from DIN EN 14470-1:

Ventilation

To prevent a potentially explosive atmosphere, the ventilation must be effective directly above the bottom collection tray.
Ventilation openings for air supply and exhaust air must close automatically when the temperature reaches 70 °C

Interior fittings

The bottom collection tray, which is used to retain potential leakages, must still be functional after the fire resistance test.
The shelves must be made of non-absorbent material. They must support the permissible load throughout the duration of the fire and must be located a maximum of 1.75 m above the floor.

Door technology

Complete self-closing of the doors within a maximum of 20 seconds; an arrest system with temperature release at 50 °C available as an option.
The closing force between the main closing and opposite closing edge of the door must not exceed 100 Newtons.
It must be possible to operate each wing of the door with one hand.
If the doors are lockable, the locking mechanism must not prevent self-closing in the event of a fire.

Fire chamber test

Each cabinet model and size is type-tested in a fire chamber in accordance with DIN EN 14470-1 Type 90.

Extracts from DIN EN 14727 or the new DIN EN 16121 and DIN EN 16122:

Static endurance test

Standing surfaces, e.g. storage shelves, are subject to a static load and an impact test and must not show any signs of breakage or other damage.

Dynamic load test

All mechanically moving components, such as pull-out shelves, drawers and doors are tested with 50,000 or 80,000 cycles each. After the tests, the doors must close and engage precisely.

Included: tested safety at the highest level

Type examination according to DIN EN 14470-1 by recognised test institutes (TÜV Süd, iBMB Braunschweig, ift Rosenheim)

List of standards: DIN EN 14470-1, DIN EN 14727, DIN EN 16121, DIN EN 16122.

Type 90 classification as per DIN EN 14470-1. TÜV-tested according to furniture standard DIN EN 14727 or the new DIN EN 16121 and DIN EN 161212.

TÜV SÜD certification badge displaying "High Quality" and various quality assurance features.

High-quality mark of approval for superior design, user-friendliness and increased durability.

FM APPROVED mark of conformity

Underwriters Laboratories mark of conformity

Australian Standard

To the safety cabinets