VA HANDBOOK 7610 (408)
March 17, 1987
Annual weight (million)
Dock Spaces
-----------------------------
-----------------
Less than or equal to 1.4 kg (3.0 lbs) ...............................1
Greater than 1.4 kg (3.0 lbs) and less
than o r equal to 3.9 kg (8.6 lbs) .....................................2
Greater than 3.9 kg (8.6 lbs) and less
than or equal to 5.9 kg (13 lbs) .......................................3
d. Sorting and Washing Area - Soiled linen carts are moved to a cart dumper and are mechanically inverted, discharging
linen onto an accumulation belt. The accumulation belt (conveyor belt) is capable of holding 50 percent of the daily processed
poundage. After the cart is emptied, it is moved to the queue for the cart washer. The soiled linen moves from the
accumulation belt onto a sorting belt or table where the linen is sorted by hand. The linen is sorted by classification (type of
linen), counted or weighted and placed into slings. Once the sling is full, it is elevated to the overhead storage rail to await the
washing equipment. The overhead storage rails are capable of holding 50 percent of the day's production in slings.
The slings are released either by operator or automatically and travel by gravity to the washing equipment for loading. The
washing equipment is installed through the staph barrier wall to maintain the separation between soiled and clean areas.
Space is provided for washing system equipment (washer-extractors, tunnel washers), conveying systems and circulation for
carts and staff.
e. Linen Storage Room - This area provides storage capacity for 2 days' worth of new linen (weight). A box of new linen
is 610 mm wide by 914 mm deep by 155 mm high (2'W x 3'D x 6"H) and weighs about 18.2 kg
(40 lbs). The boxes can be
stacked 1830 mm (6') high which would allow 12 boxes (218 kg (480 lbs)) to occupy 0.65 sq. m (6 SF)
(1) Annual Weight x 2 days
X
1
= Number of stacks of linen
260 days
218 kg (480 lbs)
(2) Number of stacks of linen X 0.65 m (6 SF)
= Stack square units
(3) Stack square units X 1.25 circulation
= NSM (NSF)
(4) Formula derived for criteria factor:
Annual weight x 2 days X 0.6 SM (6 SF) X
1
X 1.25 = NSM (NSF)
260 days
218 kg (480 lbs)
(5) Simplified: Annual weight X 0.00012 = NSM (NSF) or 1.2 X PP = NSM (NSF)
f. Central Liquid Supply System Room - The central liq uid supply system is a prefabricated unit composed of holding
tanks, mixing tanks, volumetric measure tank and automatic programmer controls. Chemicals travel from the mixing tanks
through pipes to the measure and feed unit. Mixed chemicals are programme d by the washing equipment operator or
computer and are automatically injected into the appropriate wash cycle. The unit size is approximately 2.745 mm x 3135 mm (9'
x 7'). With circulation, the area required is 3960 mm long by 3505 mm wide (13' x 11.5') or 13.9 NSM (150 NSF)
The bulk chemical storage area provides a storage area for 30 gallon containers of various chemicals utilized in the wash
cycles and an area for mixing of chemicals. A 30-day supply is normally maintained. In some instances these containers are
stored in the warehouse.
g. Cart Washer Area - The size of a prefabricated cart washer is approximately 2590 mm long by 3660 mm wide (8.5' x 12')
or 9.5 sq. m (102 SF). The cart queuing area for one cart entering and one cart exiting requires an area approximately 525 mm
wide by 1525 mm long (5' x 5') or 0.3 NSM (25 NSF) and is provided at both the entrance and exit to the cart washer. Total
space required is 14.1 NSM (152 NSF) and is rounded up to 14.4 NSM (155 NSF). Additional cart queuing space is available in
the adjacent areas.
408-6
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