This Aerospace Recommended Practice is intended as a guide toward standard practices for the determination of surface cleanliness that are applicable to field operation. Some of these methods can also be used to determine quality assurance that a surface has been properly prepared and maintained. The instrumental methods are: Wettability, Surface Potential Difference (SPD), Ellipsometry, and Optically Stimulated Electron Emission (OSEE). Each instrument is described with respect to measurement techniques, limitations, and advantages and types of available instruments. Elementary theoretical principles and examples of the use of each instrument are also given.
SAE ARP4252-1995 history
2017SAE ARP4252B-2017 Instrumental Methods of Determining Surface Cleanliness
2017SAE ARP4252A-2017 Instrumental Methods of Determining Surface Cleanliness
2006SAE ARP4252A-2006 Instrumental Methods of Determining Surface Cleanliness
1995SAE ARP4252-1995 INSTRUMENTAL METHODS OF DETERMINING SURFACE CLEANLINESS
1989SAE ARP4252-1989 Instrumental Methods of Determining Surface Cleanliness R(1995)