[en] The partition temperature estimated by Chou and Yang for e⁺e^- → h^± of TASSO experiment is compared with the cm average energy of the secondary h^± using the Maxwellian P_{perpendicularto} distribution of invariant phase-space. Fireball properties and secondary temperatures are investigated for e⁺e^- → h^±, K⁰anti K⁰, Λanti Λ of the Mark II collaboration. The number of secondary particles is found to be equally divided among the central fireball and the other two of the fragmentation regions. Crucial tests based on energy conservation are carried out for temperature estimates for the Mark II data, and anti pp → π at rest of the College de France-Cern experiment. (orig.)