Which of the following statement is/are true regarding the Huey test?

• A. Boiling 65% nitric acid is used as a corrosive solution
• B. Used to evaluate the heat treatment of steels
• C. Used to evaluate the heat treatment of stainless steels
• D. Boiling 65% nitric acid is used as a corrosive solution and used to evaluate the heat treatment of stainless steels