This NASA Technical Standard establishes requirements for evaluation, testing, and selection of materials that are intended for use in space vehicles and associated Ground Support Equipment (GSE). These requirements may also apply to facilities used during assembly, test, and flight operations when imposed contractually to ensure safety of personnel and flight hardware. Included are requirements, criteria, and test methods for evaluating the flammability, offgassing, and compatibility of materials. Provisions of this NASA Technical Standard will be included, as applicable, in all future contracts and programs involving space vehicles, payloads, and associated support equipment. This NASA Technical Standard was previously published as NASA Handbook (NHB) 8060.1, Flammability, Odor, Offgassing, and Compatibility Requirements and Test Procedures for Materials in Environments that Support Combustion. NASA Endorsed. OCE.