Special Provision: A

Radioactive material, low specific activity (LSA-II) non fissile or fissile-excepted

Propyltrichlorosilane

1,2-Propylenediamine

Propylamine

Potassium sulfide, anhydrous or Potassium sulfide with less than 30 percent water of crystallization

Potassium superoxide

Potassium sodium alloys, solid

Potassium persulfate

Potassium sodium alloys, liquid

Potassium phosphide