B and K Index - O

 
                            O
        OBJECTIVE MEASUREMENTS                  75/1/ 10-11, 19-21
        OBLIQUE DRIVE, STRUCTURE MODAL TEST 86/3/23-42,26*,29 Xducer,38 Tests
        OBLIQUE MODE ENERGY DENSITY (ROOM)      78/4/ 38
        OCCUPATIONAL NOISE CRITERIA             62/2/ 29-33
        OCCUPATIONAL NOISE MEASUREMENT          86/1/ 26-30
        OCCUPIED ZONE, RE THERMAL COMFORT       85/1/ 34
        OCTAVE FILTER SET FOR INTEGR. SLM 1625  83/4/ 34-35
        OCTAVE, 1/12th, ANALYSIS, DIGITAL       77/1/ 11-17
        ONE INCH MICROPHONE 144, 4145           69/2/ 32
        OO34 MICROPHONE FLUSH MOUNT, 1/2"       60/2/ 27
        OPERATOR, TELEPHONE, HEADSET LOUDNESS   75/1/ 16-27
        OPTICAL FILTER                          90/1/ 7
        OPTICAL LUMINANCE AND CONTRAST          84/4/ 3-20
        OPTICAL SOUND TRACK ACOUSTICS           76/3/ 20-21, 26
        OPTIMUM REVERBERATION TIME RE ROOM USE  73/1/ 20
        ORDER TRACKING ANALYSIS                 80/2/ 25-28
        OREM (TELEPHONE)               3350,2   75/1/ 38-42
        OSCILLATOR, BET FREQUENCY (BFO) 1022    70/1/ 39-40
        OSCILLOSCOPE, PORTABLE, 4714            77/2/ 29
        OSHA NOISE LIMIT (EARLY)                62/2/ 29-33
        OUTDOOR MIC. SELECTION                  83/4/ 15-18
        OUTDOOR MICROPHONE                      64/2/ 35-36
        OUTDOOR MICROPHONE (RE AIRPORT NOISE)   65/4/ 17-19
        OUTDOOR MICROPHONE, EXTERNAL ELEMENTS   73/4/ 31 ( 4921)
        OUTDOOR REFLECTIONS OF SOUND            83/4/ 18-20
        OUTPUT, MAGNETIC TAPE                   AD 16-17
        OVERFLIGHT NOISE, AIRCRAFT              65/4/ 3-30, 77/4/Fast
        OVERLAP WEIGHTING SPECTRAL AVERAGE      87/4/ 19-22
        OXYGEN UPTAKE                           90/2/ 50