What is the visual standard for abrasive blasting?

The visual standard for abrasive blasting is outlined in SSPC-VIS 1, which specifically addresses the acceptable levels of cleanliness for steel surfaces that have undergone abrasive blasting. This standard provides a series of photographs that depict various degrees of cleanliness and surface profiles, enabling inspectors to evaluate whether the blasted surface meets the required conditions for proper coating adhesion and performance.

SSPC-VIS 1 is particularly important because it helps establish a consistent benchmark for surface cleanliness, ensuring that coating applications are effective and durable. This standard is widely recognized in the industry and serves as a crucial reference for inspectors, contractors, and project owners when assessing blasted surfaces.

In contrast, ISO 8501-2 also deals with surface preparation but focuses on visual assessment of rust grades and preparation grades rather than solely abrasive blasting. SSPC-VIS 2 provides additional guidance on visual criteria but is more concerned with the assessment of the conditions of existing coatings rather than the cleanliness of surfaces immediately after abrasive blasting. ISO 9001, on the other hand, is a quality management standard that does not specifically address surface preparation or blasting standards, making it irrelevant in this context.