Evidence for change
GOSFORTH Precision AQ : Gas low (NO)
06 July 2023 - 15 August 2023
06/07/23 - Nitrogen gas : Gas low.
15/08/2023 13:34 - 15:05- Gas installation (Nitrogen)
Old cylinder : 114102C
New cylinder : D116481
Engineers report : see Urban Observatory Github : awaiting report
15_08_2023_Newcastle University_Gosforth _Other_11969_Marius Barbulescu.pdf