Variable depth QQI’s, flaws 20%, 30%, 40% of Shim thickness, .004" thick. Self Adhesive

These QQI’s are used for more quantitative work, three concentric circular flaws of differing depth.

QQI Test Pieces

Quantitative Quality Indicators (QQI) are Magnetic Particle Test Pieces with Artificial Defects

QQI’s are used:

• to increase productivity by minimizing magnetizing shots
• to verify field direction and relative strength
• to balance multi-directional fields