A fiber-cement product which includes a treated cellulose wood pulp fiber. The membrane array can be employed in various analytical devices and is especially useful for identifying analytes from whole blood with minimal or negligible background interference. A flexible element is captured by the hub assembly and is used to couple one rotating member to another. A second addressed communication session is established between the microprocessor and a second 1-wire IO expander before the switch recloses, where the second 1-wire IO expander is electrically coupled to a second system. The amine agent is present in stoichiometric excess and functions as both curing agent and chloride selective agent.