Nace Rp 0391 Pdf ((link))

Originally established in 1991 and revised in 2001 and 2016, this document (full title: Materials for the Handling and Storage of Commercial Concentrated Sulfuric Acid ) provides recommended practices for tanks and piping, aiming to prevent corrosion-related failures. Scope and Purpose

: The standard was originally released in 1991, revised in 2001, and is now maintained as SP0391-2016 by AMPP (formerly NACE). ANSI Webstore Where to Find the PDF nace rp 0391 pdf

The standard identifies specific materials based on the acid concentration and equipment type. Carbon Steel : The primary choice for concentrations between Originally established in 1991 and revised in 2001

: High-temperature baked phenolic coatings are recommended for protecting smaller storage tanks in the 90-98% range. OSTI (.gov) Related Standards NACE SP0294 Carbon Steel : The primary choice for concentrations

The acid aggressively absorbs moisture from the atmosphere. Diluted acid is far more corrosive to many common materials than concentrated acid.