1.1 This code outlines the corrosion principle in the phosphoric acid plants of the fertilizer industry by wet process and gives recommendations for materials of construction for various sections of the plant in order to minimize corrosion.
1.2 Plants producing phosphoric acid by thermal process are not covered by the standard as the magnitude of corrosion in such plants is comparatively low.
IS 11598 Pt.1-1986 history
1986IS 11598 Pt.1-1986 Code of Practice for Corrosion Protection in Fertilizer Plants Part 1 Phosphoric Acid Plant