Table II

Data Structure

Concentration Level
x1x2x3x4x5
Test sampley111, y112, y113y121, y122, y123y131, y132, y133y141, y142, y143y151, y152, y153
Standard sampley211, y212, y213y221, y222, y223y231, y232, y233y241, y242, y243y251, y252, y253