INSPECTION LOGBOOK
Coating Inspections: Inspection of Steel Surface Preparation, Part 4 Massimo Cornago NACE International Certified Coating Inspector, NACE CIP PEER Reviewer
cornago@ipcm.it
F
ollowing the previous article, “Inspection of Steel Surface Preparation,
both mineral and slag abrasives and it summarises the various tests
Part 3”, we will now discuss other surface preparation systems and
that can be used to determine their general physical and chemical
their related inspections to be carried out during the works themselves,
properties.
analysing the abrasive blast cleaning process and its related inspection
These properties include:
method based on the appropriate standards.
• Specific Gravity • Hardness • Weight change on ignition
The Inspector should verify that the blasting abrasive meets all
• Water soluble contaminants
requirements of the job specifications.
• Crystalline silica content
This includes verifying that it is capable of providing the specified surface
• Oil content
profile. The SSPC AB-1 standard defines the requirements for assessing
• Particle size distribution.
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Analysis of blasting abrasives (SSPC AB-1)
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N.39 - 2021 OCTOBER - ipcm® Protective Coatings
