Sigicom INFRA C22 - Page 65

Copyright © Sigicom AB 2021
65
48. Toronto bylaw 514
Level and frequency ranges: 250 mm/s, 2-250 Hz.
Max resolution in presentation: 0.05 mm/s and 3 significant digits.
Threshold range: 0.4 – 220 mm/s.
49. Toronto bylaw 514
Level and frequency ranges: 250 mm/s, 1-100 Hz.
Max resolution in presentation: 0.05 mm/s and 3 significant digits.
Threshold range: 0.4 – 220 mm/s.
51A. ISEE Seismograph
ISEE - Performance specifications for blasting seismographs.
Level and frequency ranges: 10 in/s, 2-250 Hz.
Max resolution in presentation: 0.002 in/s and 3 significant digits.
Threshold range: 0.02 – 9 in/s.
51B. ISEE Seismograph
ISEE - Performance specifications for blasting seismographs.
Level and frequency ranges: 1 in/s, 2-250 Hz.
Max resolution in presentation: 0.0002 in/s and 3 significant digits.
Threshold range: 0.002 – 0.9 in/s.
53A. Geophone
Unfiltered geophone signal. Upper frequency limit 500 Hz.
Level and frequency ranges: 250 mm/s, 5-500 Hz.
Max resolution in presentation: 0.05 mm/s and 3 significant digits.
Threshold range: 0.4 – 220 mm/s.
53B. Geophone
Unfiltered geophone signal. Upper frequency limit 500 Hz.
Level and frequency ranges: 25 mm/s, 5-500 Hz.
Max resolution in presentation: 0.005 mm/s and 3 significant digits.
Threshold range: 0.04 – 22 mm/s.
55A. ISEE/USBM
Same as standard 51A, ISEE standard, but in SI units.
Level and frequency ranges: 250 mm/s, 2-250 Hz.
Max resolution in presentation: 0.05 mm/s and 3 significant digits.
Threshold range: 0.4 – 220 mm/s.