Eurostat, Luxembourg. 90304090 (01/1988-12/2005) Instruments and apparatus for measuring or checking electrical quantities, specifically for telecommunications, e.g. cross-talk meters, gain measuring instruments, distortion factor meters, psophometers (excl. for civil aircraft): CN 90304010 /Exports /Unit = Prices (Euro/ton) /Partner: Latvia /Reporter: European Union /90304010:Instruments and Apparatus for Measuring or Checking Electrical Quantities, Specifically for Telecommunications, E.g. Cross-talk Meters, Gain Measuring Instruments, Distortion Factor Meters, Psophometers, for Civil Aircraft.