Results from three separate single endpoint titrations are used to calculate the results. The mixture of H₂SO₄, HF, and NH₄F/HF contains H⁺ from H₂SO₄, HF, and NH₄F/HF, SO₄^2- from H₂SO₄, and F^- from HF and NH₄F/HF. Analysis of total H⁺ («total acids») by NaOH titration, F^- by titrating with Al(NO₃)₃ («total fluoride») and SO₄^2- by titrating with BaCl₂ provides the information required to determine the composition of the mixture.

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