9030: Instruments to check or measure electricity, radiatio

903010: Instruments to measure or detect ionising radiations 903020: Cathode-ray oscilloscopes, oscillographs 903031: Electrical multimeters 903039: Ammeters, voltmeters, ohm meters, etc, non-recording 903040: Gain, /distortion and crosstalk meters, etc 903081: Electrical measurement recording instruments 903089: Electrical measurement instruments nes 903090: Parts & accessories, electrical measuring instruments 9030: Instruments to check or measure electricity, radiatio