PPFTPresidential Physical Fitness Test
PPFTPaper and Printing Federation of Thailand (est. 1983; Bangkok, Thailand)
References in periodicals archive ?
Theoretical research and laboratory test results indicate that PPFT can be applied to different formations, such as sandstone, oil shale, etc.
The results demonstrated that by employing PPFT one can effectively break the oil shale formation, while the effect distance may exceed 15 m.
3) Both PPFT and TAPT contribute to increasing the permeability of oil shale formations.