Relative humidity RH
|
Optimal Preserved Articles |
| 40% - 50% |
Chinese paintings, antiques, paper money, stamps, ancient volumes, and etc.
|
40% - 45%
|
Video cameras, cameras, lens, microscopes, telescope, negatives, video recorders, slides, CD, floppy discs, computer equipment, musical instruments, artistic products, ancient objects, dresses, leather articles, gold and silver utensils, TCM, medicines, tea, spices, superior foods and dessert, and etc. |
30% - 40%
|
Semiconductors, high polymer, chemical raw materials, precise instruments, optical measuring devices, electric and electronic parts, components and semi-products, and etc.
|
| Below 30% |
Reagent, seeds, articles under research, special chemical medicines, precise eletronic components, perfurme, and etc. |
|
