What does HFID mean?

Looking for the full meaning of HFID? From the following image, you can find out all definitions of HFID. If you want, you can also download image file to print.

HFIDHeated Flame Ionization Detection
HFIDHigh Frequency Identification
HFIDHuman Factors Integration Division
HFIDHuman Factors in Information Design

What does hfid stand for?