Other technical testing and analysis services

**Includes:** - testing and analysis of a technical or scientific nature that does not alter the object being tested - radiographic, magnetic, and ultrasonic testing of machine parts and structures in order to identify defects. These tests are often conducted on site. - certification of ships, aircraft, dams, etc. - certification and authentication of works of art - radiological inspection of welds - all other technical testing and analysis services not elsewhere classified

**Excludes:** - assessment of damages on behalf of insurance companies, cf. 71620 - technical inspection of automobiles, cf. 83444 - medical analyses and testing services, cf. 93195