7120

Technical Analysis and Testing

This subgroup includes: - Physical, chemical, and other types of material and product testing activities, including acoustic and vibration (vibration) testing, composition and purity testing of minerals and others, testing activities in the field of food safety, including animal disease testing and production-related controls, physical and performance testing of material characteristics, such as strength, thickness, durability, radioactivity, and others, qualification and durability testing, performance testing of entire machines; engines, automobiles, electronic equipment, and others, radiographic testing of welds and folds, failure analysis, and testing and measurement of environmental indicators, such as air and water pollution, and others. - Product certification includes consumer goods, motor vehicles, aircraft, pressurized containers, nuclear machinery, and others. - Periodic safety testing of motor vehicles. - Testing using models or prototypes (such as aircraft, ships, dams, and others). - Police laboratory operations. This subgroup does not include: - Animal specimen testing, see 7500. - Medical laboratory testing, see 8690