IMPF is a proposed users facility for the International Space Station. When it flies, it will be available for users world-wide. Science on IMPF will be primarily complex plasma (i.e., dusty plasma) experiments, which have small particles of solid matter with a large electric charge suspended in an ionized gas. IMPF will be a modular facility, consisting of approximately four Mid-Deck Locker Equivalents. 

For the International Announcement of Oppertunities see also:

DLR:
http://www.dlr.de/microgravity/IAO_2000

NASDA:
http://jem.tksc.nasda.go.jp/utiliz/iao_mg_2000/

NASA:
http://peer1.idi.usra.edu/peer_review/AO/00-OBPR-01/AO_00_OBPR_01.html

ESA:
http://www.estec.esa.nl/spaceflight/aophysics

Further informtion, see: www.microgravity.net