AND SOLUTIONS GUARANTEE A+
✔✔Bresle Patch - ✔✔Used to test surface for soluble salts before coating.
✔✔NCR (Non-Conformance Report) - ✔✔Report documenting any deviation from
specifications or standards.
✔✔Inspector Role - ✔✔Observe, document, and report — not enforce or direct.
✔✔Daily Inspection Report - ✔✔Log of surface prep, environmental conditions,
application, DFT, and issues.
✔✔Sling Psychrometer - ✔✔Measures ambient temperature and relative humidity.
✔✔ISO Cleanliness Grade (Sa 2.5) - ✔✔Near-white metal blast standard per ISO 8501-
1.
✔✔Surface Temp Tool - ✔✔Contact thermometer or IR thermometer used to measure
steel temperature.
✔✔Standard Reporting Practice - ✔✔Use factual, objective, and complete language in
all inspection reports.
✔✔ASTM D4417 Method A - ✔✔Visual comparator — compare steel profile to physical
reference standards.
✔✔ASTM D4417 Method B - ✔✔Surface profile measured with a depth micrometer;
probe placed over 10 locations per spot.
✔✔Acceptable Profile Range - ✔✔Typically 1.0-3.0 mils (25-75 µm); verify against
coating manufacturer's data sheet.
✔✔ISO 8501-2 - ✔✔Defines surface preparation for painted steel after fabrication (e.g.,
welds, flame cuts, etc.).
✔✔Maximum Soluble Salt Level - ✔✔Typically <5 µg/cm² chloride contamination unless
specified otherwise.
✔✔Conductivity Meter - ✔✔Used after ISO 8502-6 extraction to determine µS/cm;
results converted to µg/cm² (typically 1 µS/cm ≈ 0.6 µg/cm² chloride).
✔✔SSPC-PA 2 Reading Requirements - ✔✔One spot = 5 close readings; 3 spots
minimum per area (e.g., 10 sq. ft.).
, ✔✔SSPC-PA 2 DFT Acceptance Limits - ✔✔Each spot average must be ≥ minimum; no
spot reading <80% of minimum or >125% of maximum (unless otherwise specified).
✔✔Gauge Calibration - ✔✔Adjusting the gauge to known thickness standards before
use (must not be done in the field).
✔✔Gauge Verification - ✔✔Checking the gauge against certified shims before and after
use each day.
✔✔Gauge Adjustment - ✔✔Adjusting gauge to a substrate-specific standard (optional, if
substrate is nonferrous or curved).
✔✔ASTM D4214 - ✔✔Standard for evaluating degree of chalking on exterior painted
surfaces using cloth or tape method.
✔✔ASTM D3359 - ✔✔Standard test methods for measuring adhesion using X-cut or
cross-cut tape test.
✔✔ASTM D4752 - ✔✔Methyl ethyl ketone (MEK) resistance test; checks for cure of
epoxy coatings.
✔✔Holiday Test Standard - ✔✔NACE SP0188 — procedures for detecting
discontinuities (holidays) in protective coatings.
✔✔Low Voltage Holiday Test - ✔✔Used for coatings <20 mils (500 µm); wet sponge
method.
✔✔High Voltage Holiday Test - ✔✔Used for coatings >20 mils; pinhole detection via
spark test — voltage based on thickness.
✔✔Holiday Detection Voltage Calculation - ✔✔Follow manufacturer guidelines or NACE
SP0188 table; example: 20 mils ≈ 5,000-6,000 volts.
✔✔WFT Measurement Tool - ✔✔Wet film thickness gauge — notch (comb) style —
used immediately after application.
✔✔WFT to DFT Conversion - ✔✔WFT = DFT ÷ % Volume Solids; DFT = WFT × %
Volume Solids.
✔✔Environmental Standard - ✔✔ASTM D3276 — guidance for measuring ambient
conditions for painting.
✔✔Surface Temperature Tool - ✔✔Bimetallic contact thermometer or IR thermometer.