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Recommended Relative Humidity - RH - for production and process environments as libraries, breweries, storages and more.
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To avoid damage of the product, or to achieve proper process conditions, its often important to keep the environment and indoor climate within certain limits. It may be avoided that a low relative humidity dries up the product in the production process, or that a high relative humidity increases the water activity and creates mould.
The table below can be used as a guide to recommended Relative Humidity - RH - for some common production and process environments.
| Production and Process Environment | Recommended Relative Humidity - RH
(%) |
| Sugar Storage | 20 - 35% |
| Breweries | 35 - 45% |
| Coffee Powder | 30 - 40% |
| Milk Powder Storage | 20 - 35% |
| Seed Storage | 35 - 45% |
| Unpacked Medicine | 20 - 35% |
| Transformer Winding | 15 - 30% |
| Semiconductors | 30 - 50% |
| Books and Paper Archive | 40 - 55% |
| Paper Storage | 35 - 45% |
| Preventing Rust and Corrosion | below 55%,
< 40% for no rust |
| Library | 50 - 55% |
| Spray Paint | 30 - 50% |
| Laboratory electronics | 45 - 60% |
| Plastic Pallets | 5 - 30% |
| Computer Peripherals | 50 - 60% |
| Rust Resistance | Below 40% |
| Medical Syrups | 30 - 40% |
| Capsule Storage | 30 - 45% |
| Powder Storage | 30 - 45% |
| Wood Drying | 25 - 35% |
| Explosives | 35 - 50% Note! lower RH may cause static electricity and sparks ignition |
| Normal Storage | 50 - 55% |
| Musical Instrument | 45 - 55% |
| Leather Product | 40 - 55% |
| Cable Wrapping | 15 - 25% |
| Chemical Laboratory | 30 - 45% |
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