According to google which is never wrong….

. Things r=that can trigger the swap test\
Common Products That Test Positive
- Hand soaps that contain glycerin (Rinse very thoroughly after washing your hands.)
- Lotions that contain glycerin
- Cosmetics or hair products, which may contain glycerin
- Baby wipes, which may contain glycerin
- Certain medications (such as nitroglycerin and other nitrates)
- Lawn fertilizers (Nitrates: Wash your hands and especially your shoes.)
- Munitions
- Accelerants
- Fireworks and other pyrotechnics