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...60% for use 0-65% range) to provide a stable moisture content in a closed environment. RHapid Gel packets have an average value of MH* is 5 for a range of 20% to [[Category:Materials database]][[Category: MWG]][[Category: Climate/Environment]]

See also: [[Environment]], [[Environmental monitoring]], [[Preventive conservation]] * J. Ashley-Smith, A. Burmester, M. Eibl, Climate for collections - Standards and uncertainties, Archetype Publications (Lond

[[water|water]] vapor. The ability to stabilize an internal environment depends on the difference in the internal and external conditions as well a microclimate; micro-climate; controlled environment; Mikroklima (Deut.); micro-environnement (Fr.); microambiente (Port.)

...humidity, usually 43% RH, to provide a stable moisture content in a closed environment. The Arten Gel has now been replaced by the [[RHapid%20PAK|RHapid PAK]] sil [[Category:Materials database]][[Category: MWG]][[Category: Climate/Environment]]

* P.Hatchfield, ''Pollutants in the Museum Environment'', Archetype Press, London, 2002. [[Category:Materials database]][[Category: MWG]][[Category: Climate/Environment]]

1 - Microbiology & environment Indoor climate monitoring

In a closed environment, saturated salt solutions can maintain an equilibrium with the moisture in * Pam Hatchfield, ''Pollutants in the Museum Environment'', Archetype Press, London, 2002

...e]][[Category: MWG]][[Category: Sheet/Film, Composite]][[Category: Climate/Environment]]

Sustainable materials are optimal for people, objects, and the environment. Their careful selection, use, and disposal has both a direct as well as a [[Category:Materials database]] [[Category:MWG]] [[Category: Climate/Environment]]

[[Category:Materials database]][[Category: MWG]][[Category: Climate/Environment]]

[[Category:Materials database]][[Category: MWG]][[Category: Climate/Environment]]

* P.Hatchfield, ''Pollutants in the Museum Environment'', Archetype, London, 2002. [[Category:Materials database]][[Category: MWG]][[Category: Climate/Environment]]

[[Category:Materials database]][[Category: MWG]][[Category: Climate/Environment]]

...ce machines (copiers, printers) or are transported inside from the outdoor environment. Once inside a museum, pollutants can deposit and interact deleteriously wi ...water-based paints, and adhesives, wet cleaning activities and outdoor environment;

* Pam Hatchfield, ''Pollutants in the Museum Environment'', Archetype Press, London, 2002 [[Category:Materials database]][[Category: MWG]][[Category: Climate/Environment]]

...t moisture level, silica gel will maintain that humidity level in a closed environment. Silica gel performs best at room temperature (70-80F) and high humidity (6 * Pam Hatchfield, ''Pollutants in the Museum Environment'', Archetype Press, London, 2002

...terials database]] [[Category:MWG]] [[Category: Other]][[Category: Climate/Environment]][[Category: Comparisons]]

[[Category:Materials database]][[Category: MWG]][[Category: Climate/Environment]]

...plar]], and [[walnut]]. Hardwood trees are found in temperate and tropical climate zones. Most of the wood used for cabinetry, furniture and flooring is obtai * Pam Hatchfield, ''Pollutants in the Museum Environment'', Archetype Press, London, 2002

[[Category:Materials database]][[Category: MWG]][[Category: Climate/Environment]]

[[Category:Materials database]][[Category: MWG]][[Category: Climate/Environment]]

...nds adsorbed within the pores of the carbon thus releasing VOCs into the environment; small molecules not as effectively adsorped as large molecules ...lthough the cloth can be effective for several decades, depending on the environment where the silver is stored. Cannot be regenerated.

[[Category:Materials database]][[Category: MWG]][[Category: Climate/Environment]]

...re level, silica gel will maintain that humidity level in a tightly sealed environment. Silica gel performs best at room temperature (70-80F) and high humidity (6 [[Category:Materials database]] [[Category:MWG]] [[Category: Climate/Environment]][[Category: Comparisons]]

[[Category:Materials database]][[Category:MWG]][[Category:Climate/Environment]][[Category:Comparisons]]

...lative toxins, meaning that they accumulate in organisms and the broader environment; adverse effects on neurological development, reproduction, thyroid ho ...neurotoxins and acute exposure can be lethal; they are persistent in the environment and pose a threat to aquatic life at elevated concentrations. Animal stud