"CRYSTAL QUARTZ SURFACE MOUNT CC-4". THIS IS A SURFACE MOUNT CRYSTAL OSCILLATOR WHICH WILL PRODUCE A SPECIFIC FREQUENCY. IT WILL SET THE RADIO FREQUENCY OF THE COMMUNICATION CIRCUITRY OF A MEDICAL DEVICE.

GENERAL RULES 1 AND 6 FOR THE INTERPRETATION OF THE COMBINED NOMENCLATURE THE TEXT TO COMBINED NOMENCLATURE CODES 8541, 8541 60 AND 8541 60 00 THE HARMONISED SYSTEM EXPLANATORY NOTE (D) TO HEADING 8541