B—l This standard establishes the characteristics of the background antirust paint, oil-based, colored, based on zinc chromate, for general and marine purposes, which is applied directly to exterior and interior steel structures, with the in order to preserve them from oxidation. B—2 This standard does not include the anti-rust background paints used in painting the "living work" of ships, that is, the hull and flotation belt, which are considered in the IRMA 1110 standard.