Which statement is true regarding SSPC-SP2, ISO St 2, and ISO St 3?

The statement regarding SSPC-SP2, ISO St 2, and ISO St 3 being related to surface preparation for corrosion resistance is accurate because all these standards address the processes involved in preparing surfaces before applying protective coatings. Surface preparation is critical for ensuring optimal adhesion of coatings to substrates, which in turn enhances the durability and effectiveness of corrosion resistance.

SSPC-SP2 refers specifically to hand tool cleaning, while ISO St 2 involves a similar level of cleanliness achieved through various means, including power tools, and ISO St 3 targets a higher standard of surface preparation. These standards are aimed at removing contaminants like rust, old paint, and other debris, thus ensuring a proper foundation for subsequent coatings.

The other choices inaccurately represent the focus of these standards. The standards do not primarily concern chemical cleaning methods, nor do they exclusively describe power tool cleaning techniques or mandate the use of abrasive blasting, as each standard covers a variety of cleaning methods appropriate for different conditions and substrate materials.