Psychrometers:
Significant New Use, 26225-26232
http://www.gpo.gov/fdsys/pkg/FR-2011-05-06/html/2011-11025.htm
B. Proposed Action
EPA is proposing to designate as significant new uses the use of elemental mercury in barometers, manometers, and hygrometers/psychrometers. However, use of elemental mercury in these articles when they are in service as of the publication date of this proposed rule would not be covered as a significant new use under this proposed SNUR. Also, use of mercury in portable battery-powered motor-aspirated psychrometers that contain fewer than seven (7) grams of mercury is an ongoing use and therefore would not be covered by this SNUR. Due to EPA’s concern about use of mercury in products, the Agency may take other action to facilitate the evaluation or control of ongoing uses, as appropriate.