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According to ISO 8501-1, which rust grade describes a steel surface largely covered with adherent mill scale but little or no rust? A. Grade A B. Grade B C. Grade C D. Grade D
The study material PDF flashed in her mind: High voltage inspection is for thicker coatings. Low voltage (wet sponge) is for thin films.
A: You do not need Grade 1. You need relevant industrial experience (typically 2+ years in coating application or inspection) or completion of an approved training course. Check TWI’s latest requirements.
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According to ISO 8501-1, which rust grade describes a steel surface largely covered with adherent mill scale but little or no rust? A. Grade A B. Grade B C. Grade C D. Grade D
The study material PDF flashed in her mind: High voltage inspection is for thicker coatings. Low voltage (wet sponge) is for thin films.
A: You do not need Grade 1. You need relevant industrial experience (typically 2+ years in coating application or inspection) or completion of an approved training course. Check TWI’s latest requirements.
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