Abstract: Embodiments of portable chemical testing apparatus, methods, and systems may provide information indicative of the presence of at least one target chemical in a liquid to be tested, such as a drink, and may include a portable housing having a storage compartment for containing dispensable personal care material and a chemical testing platform which may be brought into contact with liquid to be tested.

Abstract: A crucible assembly for use in induction melting furnaces utilizes an inner crucible formed of partially stabilized zirconia and an outer support member formed of a sintered alumina. The crucibles are in the shape of a cylinder with a closed bottom wall and in the cylindrical wall area, the inner crucible and the outer support member are separated by a layer of porous ceramic fibers of alumina and silica and the entire assembly has been centered as a unit so that the outer support member with a porous layer allows for the thermal expansion and contraction of the inner crucible while limiting any stresses applied to the inner crucible and providing additional strength and support for the inner crucible.