Preliminary breath tests: a roadside test by police using a portable breath-alcohol tester to measure a suspect's intoxication level. Results of this test may be used to establish probable cause for arrest. (A test that can be used to arrest you even thought you are not allowed to see the results of the the test and testing device is not accurate.)
Stands for Portable Breath Test device. A small, handheld device that some police departments use in a roadside stop as part of the evaluation of whether or not you are impaired. These devices are notoriously inaccurate, so much so that they are completely inadmissible in court. (Also see Breath Test above.)
a material that is considered to be Persistent in the environment, Bioaccumulative, and Toxic to fish and wildlife. Phthalates are often improperly referred to as PBTs although they do not have the same characteristics that genuine PBT materials possess (see Bioaccumulation).
In a profiling operation, the file generated by the PREP program and used as input to the PLIST program to generate a human-readable profile of the source code. See also profiler, profiler batch input file, profiler batch output file.