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General Recommended RH Level Guide
Note:
The enclosed information is not absolute. It is to serve as a general guide line base on
information which we have
collected over
the years. There may be vast different values
given by different designers as products keep changing and
improving . We advise that
qualified engineers & product consultants be engaged before determining the required
space
condition. We hope that this information
will serve our clients better in selection
of equipment and space condition design.
Type of Product |
RH |
Type of Product |
RH |
| Sugar Storage |
20-35% |
Laboratory electronics |
45-60% |
| Breweries |
35-45% |
Plastic Pallets |
5-30% |
| Coffee Powder |
30-40% |
Computer peripherals |
50-60% |
| Milk Powder Storage |
20-35% |
Rust Resistance |
Below 40% |
| Seed Storage |
35-45% |
Medical Syrups |
30-40% |
| Unpacked Medicine |
20-35% |
Capsule Storage |
30-45% |
| Anti-Fungus |
45-55% |
Powder Storage |
30-45% |
| Camera Lenses |
40-55% |
Wood Drying |
25-35% |
| HT Switch Room |
45-55% |
Explosive |
*35-50% |
| Transformer winding |
15-30% |
Hospital Electronics |
45-65% |
| Semiconductors |
30-50% |
Normal Storage |
50-55% |
| Archive |
40-55% |
Musical Instrument |
45-55% |
| Paper Storage |
35-45% |
Leather Product |
40-55% |
| Rust Prevention |
below 55%,
>40% for zero rust |
Cable Wrapping |
15-25% |
| Library |
50-55% |
Chemical Lab. |
30-45% |
| Spray Paint |
30-50% |
Harddisk Production |
40-50% |
| Lithium
Battery |
Below 2 %
|
Magnetic Tapes |
40-55% |
| Wafer Relatede |
5-10% |
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Note: * Explosive storage must not be less
than 30% RH as static electricity may build up and cause sparks in the
air to
cause an
explosion. Special DH in one way air flow arrangement or total explosion proof system is
needed
for such environment.
Disclaimer : The information we offer above is not absolute
and fool proof. For serious engineering calculation and load estimates,
please
approach
the
trained professionals and authorities. Please consult us for detail
calculation for installation that requires a
definite humidity level.
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