High resolution (0.0019 cm(-1)) Fourier transform infrared spectra of R152a (CH3CHF2) at room temperature were measured using far infrared radiation from the IR beamline at the Australian Synchrotron. The a-type fundamentals nu(10) = 569.12 cm(-1) and nu(11) = 468.34 cm(-1) were assigned and analysed. Hot-band transitions centred at 471.18 cm(-1) and 469.27 cm(-1) were identified as 11(0)(1)18(1)(1) and 11(0)(1)17(1)(1), respectively. Transitions were assigned with the aid of Loomis Wood plots, confirmed by combination differences and fitted with Pickett's SPFIT/SPCAT to determine molecular constants. (C) 2008 Elsevier B.V. All rights reserved.