SAE AMS 2644H:2020 PDF Download

SAE AMS 2644H:2020 is a standard that sets out the guidelines for the classification, technical requirements, tests, and test procedures for the qualification, approval, and quality verification of all materials used in liquid penetrant inspection methods, except for those excluded in the application section. Liquid penetrant inspection is a non-destructive testing (NDT) method used to detect surface-breaking defects in materials by applying a penetrating liquid that seeps into the defects and exposes them when an additional developer is applied. This standard ensures that the penetrant materials used for inspection meet the necessary requirements, such as sensitivity, viscosity, and evaporation rate, and that the inspection process is carried out effectively and accurately.

The standard aims to ensure that all materials used in the liquid penetrant inspection are qualified, approved, and verified by implementing proper testing procedures and quality control measures. The standard includes the requirements for materials like cleaners, developers, penetrants, and the specifications for their application, discontinuity detection, and cleaning methods. The standard also specifies the criteria for the approval of new materials for penetrant inspection and the testing procedures that should be used to establish their performance and characteristics.