EN 14470-1 - EN 14470-2 safety cabinets

INTRODUCTION

For security reasons you have to store your flammable or explosive products in a safety cabinet. No matter your business branch or the degree of flammability of your products, they have to be stored in a safety cabinet in case of fire in order to delay the risk of explosion.

NORM

  • EN 14470-1: This standard, which came into force in October 2004 and will be amended in 2023, concerns the storage of flammable products. It
    applies to cabinets with an internal volume of 2 m3 or less.
  • EN 14470-2: This standard, which came into force in April 2006, concerns the storage of compressed gas cylinders in laboratories. It applies to cabinets whose total internal volume allows the storage of gas cylinders with a total capacity of less than 220 litres.
  • FM 6050 (FACTORY MUTUAL) : International insurance and accrediting body for fire protection equipment (through UL) and advising companies. FM 6050 approval results in 10 minutes fire resistance for safety cabinets according to the NFPA 251-1969 temperature curve.
  • NF EN 16121+A1: this standard specifies the requirements for determining the safety, strength, durability and stability of all types of storage furniture for collective use.

Main requirements

1. Fire protection

In case of fire, the safety cabinet shall insure for at least 15 minutes that the contents of the cabinet do not contribute to any additional risks or spread of fire. A fire safety storage cabinet shall be classified as one of the types listed below :

2. Fire test

All cabinets described in this brochure have succeeded a fire test according to EN 14770-1 (2004) or EN 14470-2 (2006) norms These tests were conducted by an outside laboratory accredited by COFRAC.

3. Spill containment sump (only for EN 14470-1)

A spill containment sump shall be installed underneath the lowest storage level. The sump shall have :

  • a minimum capacity of 10% of the volume of all containers stored in the cabinet,

  • or at least, 110% of the volume of the largest single container, whichever is the greater.

4. Construction

The doors of the cabinet must be fully self-closing from any position. The side and back walls must be of the same thickness and comparable construction. Requirements are given in respect of the construction of the cabinet and its capacity to resist fire conditions from the outside (Fire test given in ISO 834-1 and EN 1363-1).

5. Marking and labeling

Cabinets must be fitted with its standardized pictograms in accordance with ISO 3864 :

  • Matières inflammables, flamme nue interdite et défense de fumer, charge maximale admissible par étagère, capacité du plus grand récipient pouvant être introduit dans l’armoire, résistance au feu du modèle (15, 30, 60 ou 90 minutes), maintient des portes fermées lorsque l’armoire n’est pas utilisée…

  • Présence de bouteilles de gaz comprimé, résistance au feu du modèle (15, 30, 60 ou 90 minutes), maintient des portes fermées lorsque l’armoire n’est pas utilisée.

6. Ventilation

Safety Cabinets must have air inlet and outlet as well as a thermo-fuse which seals off the ventilation system in case of fire. These could be used to connect a forced ventilation system. The air change must be at least 10 times the volume of the safety cabinet (doors closed).

Choose your safety cabinet according to your activity and the level of protection you need

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