Farrow & Ball: Which primer for which paint?

Wall & Ceiling Primer & Undercoat:
Primer for treated and untreated interior walls and ceilings

Interior Wood Primer & Undercoat:
Primer for treated or untreated for interior wood.

Metal Primer & Undercoat:
Primer and rust protection for treated or untreated metal. For interior and exterior use

Exterior Wood Primer & Undercoat:
Primer for exterior wood

Wood Floor Primer & Undercoat:
Primer for interior wood floors

Wood Knot & Resin Blocking Primer:
Blocking primer against color bleed-through of wood constituents. For interior and exterior use

Masonry & Plaster Stabilising Primer:
Deep primer for absorbent concrete floors as well as indoor and outdoor masonry.