Temperature/ Humidity

Aim points: 70 degrees F, 45% Relative Humidity.  Notify Chief Curator of divergence from aim points, especially large variations of instability.

Locations of monitors:

• Gallery

• Reading Room (104)

• 103/scanning room 

• 038/Basement compact shelving

Charts: Change once a week.  File used sheets in cabinet.

Calibrate: With sling psychrometer, calibrate hygrothermographs monthly (see:  http://www.nps.gov/museum/publications/conserveogram/03-01.pdf).

Hygrothermographs: 5020 Hygrothermograph with battery operated 1-7-31 day clock

Supplies/support:

• Charts: Order on annual supply request from Scientific Sales: https://www.scientificsales.com

• Order blue pens through a regular supply request to Christina.

• Order AA batteries through Christina as well.

• Order green and red pens through Graphic Controls (item numbers 30683828 and 30683851)

Cold Storage Vault & Antechamber:

The cold storage in managed by a campus contractor called Siemans.  They are in charge of ordering the pens.  If there is any problem with the machines call the physical plant at:  x52550 and they will contact Siemens.  There are pens and charts located below the machines, you can change both of these yourself.  Set points are written on the meters.