Ontwikkeling en toepassing van indicatoren van sociaal-economische status binnen het Gezondheidsstatistisch Bestand

PCT No. PCT/SE91/00858 Sec. 371 Date Jun. 9, 1993 Sec. 102(e) Date Jun. 9, 1993 PCT Filed Dec. 13, 1991 PCT Pub. No. WO92/11501 PCT Pub. Date Jul. 9, 1992.A permanently united plate heat exchanger normally comprises a plate package (1) having two end plates (3, 4) and several heat transferring plates (5) which are arranged therebetween. The end plates (3, 4) and the heat transferring plates (5) are permanently united, for instance by brazing, to a plate package the end plates of which have altogether four openings to form inlets and outlets for two heat exchange fluids. Two or more plate packages (1, 2) may be coupled together to form a plate heat exchanger. Preferably, plate packages of this kind are produced which have different numbers of heat transferring plates (5, 8).