CEA 4001 - Flammable liquid storage

159
Ceiling sprinklers shall be designed for a density of 7,5mm/min over an area of operation of
260m
2
, providing the uppermost level of racks is capped and protected by rack sprinklers.
If the uppermost level or the capping is omitted, the ceiling sprinklers shall be designed on the basis at
least of Category III goods. The stack height shall be measured from above the uppermost
intermediate level sprinklers to the top of the hanging garments.
K.2.6 Automatic shutdown
Operation of the sprinkler system shall automatically stop all automatic distribution systems within
a warehouse.
K.2.7 Control valve set
All installations shall be of the wet pipe type.
K
K.3 Flammable liquid storage
The maximum area of flammable liquid storage and any containment shall be considered and the
authorities shall be consulted.
The use of a film forming foam and wetting agent is recommended.
Flammable liquids shall be classified into four classes according to their flash point (FP), as shown in tables
K2 and K3. Tables K2 and K3 shall be used for flammable liquids stored in non-pressurized metal
drums with a capacity greater than 20 l but not greater than 208 l. Table K4 shall be used for
flammable liquids stored in non-pressurized metal drums with a capacity less than 20 l.
Table 53: Flammable liquids in metal drums (ST1) with a capacity > 20 l and 208 l (K2)
Class
Properties
°C
Storage methods
Permitted storage
Ceiling sprinklers
Density
mm/min
Area of
operation
m
2
1
FP > 100
on side on end
12 drums high
6 drums high
10
450
2
FP < 100
on side on end
6 drums high
2 drums high
25
450
3
FP < 55
on side on end
3 drums high
1 drums high
25
450
4
FP < 21
on side or on end
1 drum high
25
450