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Title: Mexican Primary Standard For Liquid Flow Measurements. Needs, Priorities And Benefits
Author: L. Hernandez, H. Luchsinger, R. Arias, S. Trujillo, m. Maldonado, A. Loza
Source: 1995 International Symposium on Fluid Flow Measurement
Year Published: 1995
Abstract: The liquid flow facility at the Centro Nacional de Metrologia (CENAM), now under construction, will constitute Mexicos primary standard for liquid flow measurements. The system will have flowrate capabilities from 0,0028 m/s to 0,1936 m/s (first phase) and pressure range up to 1 MPa. It is planned that flowrate could be measured with a total uncertainty of 0,13%. It is designed according to international standards and with recommendations suggested mainly by NIST USA, PTB Germany, and NEL in Scotland, based on a static weighing principle with capacity of 10 000 kg. Frequency converters coupled to the pumps allow an effective flow-rate control and minimize energy waste in the by-pass line.


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