Patent ID: 7803631
Filing Date: 2010-09-28
Classification: G01N,Y10T

Abstract:
1. A batch process for water content material determination in a measurement apparatus, the process comprising: evaporating and combusting a predetermined amount of an aqueous sample automatically taken analysis in at least one heating vessel equipped with a heating facility, feeding the combustion product in a transport gas flow via sample transport pipes leading to a detector, determining the concentration of a gaseous compound of the water content material, and calibrating the apparatus, including the heating vessel, sample transport pipes and detector, with a predetermined amount of a calibrating gas which contains a predetermined concentration of the element corresponding to the water content material, said calibration gas, in the calibration step, being fed in the transport gas flow instead of the combustion product, the predetermined amount of calibration gas being set by filling a reservoir with one of a known volume of gas under atmospheric pressure or with pressure compensation, and the flow of transport gas, after filling with the calibration gas, being passed through the reservoir.