Abstract: A testing device for locating parathyroid glands comprises a module for receiving an aspirated sample of fluid and tissue taken from a suspected parathyroid gland. The module contains a first membrane containing an anti-parathyroid antibody conjugated to nanoparticles for receiving the aspirated sample, resulting in the formation of a sample/conjugate mixture. That mixture flows across adjacent membranes to a test location containing anti-parathyroid and an indicator for parathormone. Presence of a sufficient quantity of parathormone in the conjugate of aspirated sample reaching the test line is evidenced by a readable change in the test line appearance.

Abstract: A firestop sleeve suitable for both concrete floor and gypsum wall-board assembly including a layer of intumescent composite forming a moldable putty with a restraining layer, for wrapping around a pipe extending through the concrete floor or through the wall-board, along with a plurality of bendable tabs for depression into the wrapped layer to hold the restraining layer in position during installation.

Abstract: An intumescent firestop device having a layer of non-curing moldable two-stage intumescent composite and a restraining layer. When the firestop device is installed around a pipe near the wall opening through which the pipe runs, the intumescent composite exudes into the annular space between the pipe and the wall opening thereby forming a cold-gas seal. The composite is a two-stage intumescent composite that contains two different intumescent components that begin to intumesce at two different temperatures to form a hard char.