Synonym for fusion-inferred threshold test ... Employment of the phenomenon of cerebral fusion of binaural sounds to substitute for conventional masking in hearing testing. ... Synonym: FIT test. ... (05 Mar 2000) ... Found on http://www.encyclo.co.uk/local/20973
[Respiratory protection] Means the use of a protocol to qualitatively or quantitatively evaluate the fit of a respirator on an individual. (See also Qualitative fit test QLFT and Quantitative fit test QNFT.) OSHA Definition Found on https://www.osha.gov/SLTC/etools/respiratory/index.html