Cause:

  • Detergent residue.
  • Exposure to saline, blood, potassium chloride and other  compounds.
  • Detergent containing high PH.
  • Metals of dissimilar composition.

Solution:

  • Rinse with fresh running water as soon as possible after exposure.
  • Avoid detergents with chloride base.
  • Avoid detergents high PH.
  • Separate metals in cleaning operation where ultrasonic process used.