Pre-operation checks for an ESD mat include:

Pre-operation checks for an ESD mat include:

• A. Inspect mat condition, clean with damp cloth and dry; check wrist strap resistance and conductivity
• B. Soak mat in water to remove oils
• C. Remove grounding strap for flexibility
• D. Store mat in direct sunlight

Answer: (A)

Before starting work, verify the ESD mat is in good condition and the grounding path is functioning. Visually inspect the mat for damage or wear and clean the surface with a damp cloth, then allow it to dry completely to remove oils and contaminants that can affect surface resistance. Soaking the mat would introduce excess moisture and can damage the material and its protective properties. The wrist strap should be tested for proper resistance and continuity to ground so it reliably drains static. These steps ensure a clean, intact surface and a functioning grounding system, which are essential for effective electrostatic discharge control. Storing in direct sunlight or removing the grounding strap would degrade materials or defeat grounding, and soaking the mat would compromise its performance.

Before starting work, verify the ESD mat is in good condition and the grounding path is functioning. Visually inspect the mat for damage or wear and clean the surface with a damp cloth, then allow it to dry completely to remove oils and contaminants that can affect surface resistance. Soaking the mat would introduce excess moisture and can damage the material and its protective properties. The wrist strap should be tested for proper resistance and continuity to ground so it reliably drains static. These steps ensure a clean, intact surface and a functioning grounding system, which are essential for effective electrostatic discharge control. Storing in direct sunlight or removing the grounding strap would degrade materials or defeat grounding, and soaking the mat would compromise its performance.