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Table 2 Threshold EMI values at 13.56 MHz for parallel and perpendicular orientations for all devices

From: Feasibility results of an electromagnetic compatibility test protocol to evaluate medical devices to radio frequency identification exposure

Device # RFID Standard protocol Threshold H-Field strength (A/m RMS)
   Parallel Perpendicular
1 ISO 14443 Type A Max 4.5 4.5
  ISO 14443 Type A Min 4.5 6.5
  ISO 14443 Type B Max 4.5 4
  ISO 14443 Type B Min 4 4
  ISO 15693 Max 4 3.5
  ISO 15693 Min 4.5 3.5
2 ISO 14443 Type A Max 10.5 12
  ISO 14443 Type A Min 10.5 12
  ISO 14443 Type B Max 10.5 9.5
  ISO 14443 Type B Min 10.5 12
  ISO 15693 Max 10.5 11.5
  ISO 15693 Min 10.5 11.5
3 ISO 14443 Type A Max 12 12
  ISO 14443 Type A Min 12 12
  ISO 14443 Type B Max 12 12
  ISO 14443 Type B Min 12 12
  ISO 15693 Max 12 12
  ISO 15693 Min 12 12
4 ISO 14443 Type A Max 12 12
  ISO 14443 Type A Min 12 12
  ISO 14443 Type B Max 12 12
  ISO 14443 Type B Min 12 12
  ISO 15693 Max 12 12
  ISO 15693 Min 12 12