Paragraph 9.2 Acoustic environment
(a)
description of the measuring site, including physical characteristics of the test area; diagram showing the location of the sound sources and any reflecting objects on the measuring site;
(b)
meteorological conditions: weather (e.g. sunshine, cloud, rain, fog), air tempera ture, barometric pressure, wind speed and direction, humidity;
(c)
correction constant representing the acoustic properties of the test area.