ASTM C 1153用红外线影象为屋面防潮定位
日期:2012-02-08 15:49
nd-based and aerial inspections. (WarningExtreme caution shall be taken when accessing or walking on roof surfaces and when operating aircraft at low altitudes, especially at night.) (WarningIt is a good safety practice for at least two people to be present on the roof surface at all times when ground-based inspections are being conducted.)
1.2 This practice addresses criteria for infrared equipment such as minimum resolvable temperature difference, spectral range, instantaneous field of view, a
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11/01 22:08