Which health precaution should NOT be applied when conducting a penetrant test?

Washing any excess penetrant from skin using gasoline should not be applied as a health precaution during a penetrant test. Gasoline is a harsh and volatile substance that can cause skin irritation or chemical burns. It is also a flammable liquid that could pose additional safety risks in an environment where penetrants are being used, especially since these penetrants may also be flammable or contain harmful solvents.

In contrast, using water to wash excess penetrant from the skin is a safer and more recommended approach due to water's benign properties. Wearing protective gloves is essential to prevent direct skin contact with potentially hazardous materials, safeguarding the worker against chemical exposure. Similarly, using eye protection is crucial when handling any chemical substances to prevent eye injuries from splashes or fumes. These precautions help ensure safety and compliance with health standards in environments where penetrant testing is performed.