A silicon nitride cuvette window for a microsampling device and method of construction are provided. The contact points are each electrically conductively connected to one of the two electrical power connections. Samples are analyzed to determine the end point of the reactions in the phase being sampled. The ordering sub-system provides an order in which the cache blocks of data will be replaced in the cache, and the ordering sub-system is responsive to the marking data. Alternatively or in addition, to at least partially compensate for gain temperature dependencies, a summer adds two gain compensation signals, the ratio of the second to the first being a function of temperature. The hard coat laminate comprises: a light transparent substrate; and an electrically conductive layer and a hard coat layer provided in that order on the light transparent substrate, the saturated amount of electrification on the outermost surface of the hard coat laminate being not more than 1.