Table 1 concentration level and contaminated surfaces
From: Nondestructive testing of contaminated CFRP surfaces with the BonNDTinspect® system
Contamination | Concentration | ||||||
|---|---|---|---|---|---|---|---|
Z0 | Z1 | Z2 | Z3 | Z4 | Z5 | Z6 | |
Release agent (µg/100 mm2) | 0 | <30 (0.125%) | <30 (0.19%) | <30 (0.22%) | <30 (0.25%) | 40 (0.60%) | 50 (1.10%) |
Hydraulic oil (µg/100 mm2) | 0 | 235.56 | 408.89 | 1740.22 | 4213.33 | ||
Fingerprint (100 mm2) | 0 | 184.22 | 329.82 | 583.85 | – | ||
Corundum (µg/100 mm2) | 0 | 253.33 | 493.33 | 680.00 | – | ||
CFRP-dust (µg/100 mm2) | 0 | 244.44 | 471.11 | 915.56 | – | ||