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Areas of Application
• ICU ventilators
• Anaesthesia machines
• Infant ventilators
• Various medical devices
Requirements for Compressed Medical Air According to ISO 8573
• Oil free
• Water mist free
• Clean – no particles larger than 0.1 µm
• Bacteria free
The imtmedical Solution
aeris is the only compressor in its class using the Triple Filter System to fiter out residual water, oil, mist,
droplets and other particulate matter. Additional fiters, as well as an active carbon cartridge, ensure that the fier
molecules (> 0.01 micron) are trapped while the carbon cartridge
absorbs hydrocarbon and odors.
Design and construction of cylinder stores
General
8.11 Cylinder stores should be covered and adequately ventilated. Stores
should not be located in close proximity to any installation which may present
a fire risk or other hazard.
8.12 The floor and hard standing should be level and constructed of
concrete or other non-combustible, non-porous material. A concrete finish is
preferred and is likely to have a longer life. The floor should be laid to a fall to
prevent the accumulation of water.
8.13 The store should have easy access for trolleys. The cylinder bays should
be arranged to allow trolleys to be safely manoeuvred and cylinders to be
loaded and unloaded.
8.14 Separate, clearly identified bays should be provided for full and empty
cylinders.
8.15 Separate areas for different gases should be provided, but it is not
necessary to construct a physical barrier unless it is convenient to do so.
Adequate means of securing large cylinders should be provided to prevent
falling. Small cylinders should be secured in racks in accordance with BS 1319.
8.16 The doors should be large enough to facilitate cylinder
loading/unloading and should be on an external wall. The emergency exit
should be provided with a panic-release lock. Doors should open outwards.
35
Hazchem/warning signs
8.18 Safety warning signs and notices should be used where appropriate
and posted in prominent positions. They should be sited and designed in
accordance with the requirements of SI 1980 No 1471 ‘The Safety Signs
Regulations 1980’; BS 5378: Part 1: 1980, Part 3: 1982 ‘Safety Signs and
Colours’; BS 5499: Part 1: 1984 ‘Fire Safety Signs Notices and Graphic
Symbols’ and the Health and Safety at Work etc Act 1974.
Location
8.19 Cylinder stores should be located at ground level, not underground, for
example in a basement.
8.20 Cylinder stores should be located as close as possible to the delivery
point. Wherever possible there should be only one delivery supply point for
each site.
8.21 No parking should be permitted within the delivery and storage area,
other than for loading and unloading cylinders.
8.22 The location of the cylinder store should be marked clearly on the site
plan for ease of identification in the event of an emergency.
Handling of cylinders
General
8.23 Cylinders can be heavy and bulky and should therefore be handled with
care only by personnel who have been trained in cylinder handling and who
understand the potential hazards.
8.24 A suitable trolley should be used for transporting cylinders whenever
they are moved.
8.25 Cylinders should not be lifted by their guards or valves unless
specifically designed for that purpose.
8.26 Cylinders should not be dropped, knocked, used as “rollers” or be
permitted to strike each other violently.
8.27 Cylinders and valves should be kept free from oil, grease and other
debris. Cylinders should not be marked with chalk, crayon, paint or other
materials, nor by the application of adhesive tapes etc. A tie-on label indicating
the content state may be attached to the cylinder.
8.28 Smoking and naked lights should be prohibited in the vicinity of all
cylinders.
8.29 Cylinders should always be secured during transportation and in use
Precautions against fire, heat and chemicals
8.55 General fire precautions applicable to MGPS are given in the “Fire
precautions” section of Chapter 9 “General safety and fire precautions”.
8.56 Oil and grease in the presence of high-pressure oxygen and nitrous
oxide are liable to combustion and should not be used as a lubricant on any
gas cylinder or equipment. In particular, the cylinder valve, couplings,
regulators, tools, hands and clothing should be kept free from these
substances.
8.57 A hazardous situation could arise if cylinders are subjected to extremes
of temperature. Cylinders should be kept away from sources of heat,
including steam pipes and hot sunny positions.
8.58 When equipment is coupled to a cylinder, the cylinder valve should
initially be opened as slowly as possible, as rapid opening can cause a sudden
adiabatic increase in downstream gas pressure. The consequent temperature
rise may result in ignition of combustible material in contact with the hot gas
downstream. Only regulators designed for oxygen use should be used for this
service a s they are constructed to prevent this occurrence.
8.59 Serious incidents have occurred as a result of ignition occurring within
the cylinder valve or regulator. This has been attributable to friction generated
by particulate matter, such as dust or dirt, within the system when the
cylinder valve is opened.
8.60 Cylinders and their associated equipment should be protected from
contact with oil, grease, bituminous products, acids and other corrosive
substances.
Storage of cylinders in manifold rooms
The number of cylinders in manifold rooms should be restricted to the
minimum required for operational and reserve purposes. This will include
cylinders connected to the manifold(s) and a sufficient reserve to replenish one
complete bank. In the case of manifolds for nitrous oxide/oxygen mixtures,
sufficient cylinders to replace two complete banks should be stored.
8.63 Only cylinders of the gases required for connection to the manifold
should be kept in the manifold room. The manifold room should not be used
for any other purpose, although an exception may be made for essential
storage of nitrous oxide/oxygen mixture cylinders on trolleys to permit
temperature equilibration before use with directly connected equipment.
Storage of cylinders in ready-to-use stores
8.64 In some areas it will be essential to hold small numbers of spare
cylinders for immediate use for connection to anaesthetic machines and for
sudden unanticipated demands. Such areas would include operating
departments, A&E departments, coronary care units, central delivery suites of
maternity departments, special care baby units, intensive therapy units,
sterilizing and disinfecting units etc. These stores should only be used for full
cylinders and all empty cylinders should be returned immediately to the main
cylinder store.
8.65 The numbers of cylinders held should be kept to the minimum; a
24-hour supply should suffice for normal circumstances, although this may
have to be increased for weekends, bank holidays etc and other operational
reasons.
8.66 These cylinders should be kept in a specially designated room. This
should comply as far as possible with the requirements for manifold rooms,
but in any case should be well ventilated and where practicable have at least
one external wall to facilitate natural ventilation.
8.67 This designated room should be clearly labelled with the types of
cylinder contained and “no smoking” warning signs.
8.68 No combustible material should be kept in the ready-to-use store. The
general principles given in paragraphs 8.83–8.85 and 6.61 should be followed
where appropriate.
8.69 Cylinders should be stored in racks in accordance with BS 1319.
Sufficient space should be provided for manoeuvring cylinders onto and off
trolleys. Adequate means of securing large cylinders should be provided to
prevent falling.
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