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NACE RP0392

92nd Edition, April 1, 1992

Complete Document

Recovery and Repassivation after Low pH Excursions in Open Recirculating Cooling Water Systems

Includes all amendments and changes through Reaffirmation Notice , March 15, 2001


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EN
Additional Comments:
WDRN NO S/S * ITEM NO 21055
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Product Details:

  • Revision: 92nd Edition, April 1, 1992
  • Published Date: March 15, 2001
  • Status: Not Active, See comments below
  • Document Language: English
  • Published By: NACE International (NACE)
  • Page Count: 17
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

The discussions and procedures in this standard are applicable to low-carbon steel metallurgy. They need to be modified for systems that contain copper-based alloys, stainless steels, other metals, and other materials of construction. Low pH excursions are perhaps the most devastating of all cooling water system upsets. The inadvertent reduction in pH because of acid overfeed, process leaks, or airborne acid gases can result in a number of serious problems.