lb (29.3 kg) EVA Suit Mass: 72 lb (32.7 kg) Total EVA Suit Mass: 143 lb (64.9 kg) Primary Life Support: Vehicle Provided via ALSA Backup Life Support: 30 minutes ASTP Spacesuit For the Apollo–Soyuz Test Project, NASA decided to use the A7LB CMP pressure suit assembly worn on the J-missions with a few changes to save cost and weight since an EVA was not planned during the mission. The changes included a simplified cover layer which was cheaper, lighter and more durable as well as the removal of the pressure relief valve and unused gas connectors. No EVA visor assemblies or EVA gloves were carried on the mission. The ASTP A7LB suit was the only Apollo suit to use the NASA "worm" logo, which was introduced in 1975 and used extensively by NASA until 1992. Specifications Name: Apollo A7LB Pressure Suit Assembly Manufacturer: ILC Dover Missions: ASTP Function: Intra-vehicular activity (IVA) Operating Pressure: 3.7 psi (25.5 kPa) IVA Suit Mass: 64.6 lb (29.3 kg) Primary Life Support: Vehicle Provided References External links NASA JSC Oral History Project Walking to Olympus: An EVA Chronology PDF document. Apollo Operations Handbook Extravehicular Mobility Unit: Volume I: System Description: Apollo 14 Apollo Extravehicular mobility unit. Volume 1: System description - 1971 (PDF document) Apollo Extravehicular mobility unit. Volume 2: Operational procedures - 1971 (PDF document) Skylab Extravehicular Activity Development Report - 1974 (PDF document) A history of NASA space suits APOLLO EXPERIENCE REPORT DEVELOPMENT OF THE EXTRAVEHICULAR MOBILITY (PDF Document) A visual history of project Apollo including many space suit photographs ILC Spacesuits and Related Products Apollo program hardware Environmental suits American spacesuits