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00615 INSPECTION AND INTERPRETATION USING JOINT STANDARD NACE NO. 5/SSPC SP-12

Conference Paper - This paper describes the requirements of the standard, additional inspection points, and several uses of the standard in the field where clear specification language was imperative to successful project completion. NACE 5/SSPC-SP 12 standard confined to water jetting - which makes use of ultra-high pressure water that is nonabrasive.  Four levels of visible post-cleaning condition and three levels of non-visible condition are defined.

Product Number: 51300-00615-SG
ISBN: 00615 2000 CP
Author: R.P. Negrey
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The use of water jetting and water cleaning has increased recently with advances in equipment technology, the continued concerns with dusting caused by abrasive blast cleaning, and a heightened awareness of the need for chemically clean substrates. NACE 5/SSPC-SP 12 was introduced in 1996 (as an update to NACE Standard RP0172) to describe levels of cleaning using water for substrates to be painted. The NACE and SSPC abrasive blast cleaning standards are well known in the coatings industry and field inspectors are very familiar with their use and interpretation. Additionally, the blast cleaning standards clearly describe one end condition of the substrate to be painted. In contrast, NACE 5/SSPC-SP 12 describes four end conditions of the substrate for visible cleanliness and three conditions for non-visible cleanliness. As a result, the specifier must make specific choices when invoking NACE 5/SSPC-SP 12. This paper describes the requirements of the standard, additional inspection points, and several uses of the standard in the field where clear specification language was imperative to successful project completion.

The use of water jetting and water cleaning has increased recently with advances in equipment technology, the continued concerns with dusting caused by abrasive blast cleaning, and a heightened awareness of the need for chemically clean substrates. NACE 5/SSPC-SP 12 was introduced in 1996 (as an update to NACE Standard RP0172) to describe levels of cleaning using water for substrates to be painted. The NACE and SSPC abrasive blast cleaning standards are well known in the coatings industry and field inspectors are very familiar with their use and interpretation. Additionally, the blast cleaning standards clearly describe one end condition of the substrate to be painted. In contrast, NACE 5/SSPC-SP 12 describes four end conditions of the substrate for visible cleanliness and three conditions for non-visible cleanliness. As a result, the specifier must make specific choices when invoking NACE 5/SSPC-SP 12. This paper describes the requirements of the standard, additional inspection points, and several uses of the standard in the field where clear specification language was imperative to successful project completion.