International Organization for Standardization (ISO)
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ISO 6781:1983
Scope
Specifies a qualitative method, by thermographic examination (infrared method), for detecting thermal irregularities in building envelopes. The method is used to identify wide variations in the thermal properties, including air tightness, of the components constituting the external envelopes of buildings. Does not apply to the determination of the degree of thermal insulation and air tightness of a structure.
ISO 6781:1983 history
1983ISO 6781:1983 Thermal insulation; Qualitative detection of thermal irregularities in building envelopes; Infrared method