Blood

STAIN: Reddish when fresh, dries to dark brown with irregular edge CONTAINS: Albumin, fat, fibrin, iron

• Apply cool detergent solution, blot.
• Apply cool ammonia solution, blot.
• Apply enzyme detergent, blot.
• Rinse thoroughly with water, blot until dry.
• If stain remains, apply rust remover or oxalic acid solution.
  

Bleaching with 3-5% hydrogen peroxide may be necessary.