Which surface cleanliness standard corresponds to a commercial Blast Cleaned surface, as defined by SSPC-SP6/NACE No. 3?

The question asks which surface cleanliness standard corresponds to a "Commercial Blast Cleaned surface," as defined by SSPC-SP6/NACE No. 3.

The question explicitly states that the Commercial Blast Cleaned surface is defined by SSPC-SP6/NACE No. 3. Therefore, the correct option is the one that matches this standard.

• A) SSPC-SP6/NACE No3: This directly matches the standard mentioned in the question.
• B) SSPC-SP7/NACE No4: This standard defines a "Brush-Off Blast Cleaning."
• C) SSPC-SP5/NACE No1: This standard defines a "White Metal Blast Cleaning."

The correct option is A).

$$\boxed{\text{A) SSPC-SP6/NACE No3}}$$