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WHAT IS A CLEANROOM?
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<p>
A <a href="http://www.lhcleanroom.com/clean-room/" target="_self">clean room</a> is a
controlled environment where pollutants like dust, airborne microbes, and aerosol
particles are filtered out in order to provide the cleanest area possible. Most cleanrooms
are used for manufacturing products such as electronics, pharmaceutical products, and
medical equipment. A cleanroom can be classified into different levels of contamination
depending on the amount of particles allowed in the space, per cubic meter. Cleanrooms
also control variables like temperature, air flow, and humidity.
</p>
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HOW DOES IT WORK?
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<p>
Essentially, cleanrooms work to remove pollutants, particles, and contaminants from
outside ambient air. Outside air is first circulated to a filter system. The filters
(either HEPA or ULPA) then clean and decontaminate this outside air according to their
specifications. The filtered air is then forced into the cleanroom. Additionally,
contaminated air within the cleanroom is forced outside the room by registers, or it is
recirculated back into the filters, and the process restarts.
</p>
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WHO NEEDS A CLEANROOM?
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<p>
There are a wide variety of reasons that a company may need a cleanroom. If you’re
manufacturing something that is easily affected by contaminants or particles in the air
for example, it’s likely that you’ll need a cleanroom. If you’re not sure, or if you’d
like an estimate, give the experts at Angstrom a call. Here are a few common reasons you
might need a cleanroom, and some common industries that regularly use cleanrooms:
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Manufacturing Companies
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Research Facilities
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Pharmaceutical Companies
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<p>
Medical Laboratories
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<p>
Electronic Part Production
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What is a sandwich panel?
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<p>
A <a href="http://www.lhcleanroom.com/sandwich-panel/" target="_self">sandwich
panel</a> is a product used to clad the walls and roofs of buildings. Each panel comprises
a core of thermoinsulating material, skinned on both sides with sheet metal. Sandwich
panels are not structural materials but curtain materials. The structural forces are
carried by the steel framework or other carrier frame to which the sandwich panels are
attached.
</p>
<p>
The types of sandwich panel are generally grouped by the thermoinsulating material
used as the core. Sandwich panels with cores of EPS (expanded polystyrene), mineral wool
and polyurethane (PIR, or polyisocyanurate) are all readily available.
</p>
<p>
The materials mainly vary in their thermal insulating performance, sound insulating
performance, reaction to fire and weight.
</p>
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Why use sandwich panels anyway?
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<p>
Sandwich panels are widely acclaimed due to a number of benefits, mainly those related
to cost. Comparisons between frame or stud partition technology (frames lined with
sandwich panels) and traditional building technologies based on masonry walls reveal
advantages of sandwich panels in three key areas:
</p>
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1. Direct costs
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<p>
Construction of a building in either technology requires similar capital expenditure
levels.<br/>The comparison in this area includes the costs of construction materials,
labour and shipping.
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2. Construction time
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<p>
A building based on a traditional masonry process may take 6 to 7 months to
complete.<br/>A building of the same volume utilising stud partitions takes just 1 month
to complete.<br/>The construction time is business-critical. The sooner a production
building or warehouse is commissioned for use, the sooner a return on the investment can
be achieved.
</p>
<p>
Stud partition buildings are assembled rather than “built”. The finished structural
parts and cladding components arrive on site, and are then assembled like a house of toy
bricks. Another plus is that there is no need to wait for the building shell to lose
excess moisture.
</p>
<h3>
3. Construction processes
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<p>
In some sectors of industry, the construction requirements can be critical for a
building project. Stud partition construction is a ‘dry process’, with no water needed
for the construction materials. A dry process requires only the assembly of the structure
and fixing of the cladding (here, the sandwich panels) with screws.
</p>
<p>
Traditional masonry construction uses ‘wet processes’, which require significant
amounts of water to make the mortar for bricklaying, concrete for casting or the plaster
for rendering.
</p>
<p>
Some sectors of industry, like wood processing or pharmaceutical manufacture, require
fixed and controlled relative humidity levels, which preclude wet construction processes.
</p>
<p>
Pass box is one of the cleanroom systems, which is used to transfer materials from one
side to other side through controlled environment in order to avoid airborne cross
contamination. As the name states itself, the primary and only work of a pass box is to
pass material from one side to other without raising contamination concern and if any
particulate matter presents on the material surface, it swipes away during the operation.
Interlocking door mechanism is the prime feature of a pass box, when door at one side is
open the door at other side remains closed. It is popular with other names such as
cleanroom pass through, clean transfer window and transfer hatch; in addition, it is
widely used in microbiology laboratories in food, pharmaceutical and chemical industries.
</p>
<p>
A pass box is designed in two different types; static and dynamic, it is the user
specific requirement which decides the right design configuration. The difference between
these two is explained as:
</p>
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