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The two dominant abrasive blasting cleaning surface preparation standards of the ISO 8501 (Sa) and the SSPC/NACE joint standards, are very difficult to compare, because they widely recognize share the same levels of cleanliness of the surface preparation grade.
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Read on Graco why two dominant surface preparation standards through abrasive blasting, ISO 8501 and the SSPC/NACE joint standards, are tough to compare.
The same surfaces prepared to four grades of surface quality (Sa 1, Sa 2, Sa 2½ and Sa 3) by blasting with various abrasives. Examples: A steel originally corresponding to rust grade B, which has been scraped or
Sa 2 and Sa 2.5 cleanliness standards - corrosion rate of 0 millimeter per year and a rust grade of 10. Findings for adhesion test shows the critical load experienced by sample prepared under Sa 2 is 51N and higher than the sample prepared under Sa 2.5 which is 43N. However, acoustic emission shows a higher intensity profile from the
1) The document discusses various surface preparation standards including Swedish SA 1, SA 2, SA 2.5, SA 3 and NACE. 2) It provides descriptions of each standard level, from SA 1/Brush Off being the lowest level of cleanliness to SA 3/White Metal being the highest level.
11 paź 2019 · Sand Blasting Standards_ Swedish SA 1, SA 2, SA 2.5, SA 3 Vs. October 11, 2019 | Author: Anonymous | Category: Surface Roughness, Rust, Paint, Abrasive, International Organization For Standardization | Report this link. DOWNLOAD PDF.
Sand blasting standards: Swedish SA 1, SA 2, SA 2.5, SA 3 vs. NACE. http://www.finishing.com/125/26.shtml. The surface shall be free from visible oil, dirt and grease, from poorly adhering mill scale, rust, paint coatings and foreign matter. The blasted surface must have a uniform metallic colour.
