1. Specific commercial products and equipment are identified in order to fully identify the procedures. Such identification does not imply endorsement of the product by the National Institute of Standards and Technology, nor that the product is necessarily the best for the purpose
2. www.3m.com/market/consumer/pms/advtech.html#surface.
3. Schlesinger G. “Surface Finish: Report of the Research Department of the Institution of Production Engineers”, London, 1942
4. Bryan J. B. “Survey of functional characteristics of surfaces” CIRP STC S report, August 1966
5. Relationship of surface roughness to functional properties;DeVries;CIRP Annals,1976