VDI 4640Blatt2

Thermal use of the underground - Ground source heat pump systems.

STANDARD published on 1.6.2019

The information about the standard:

Designation standards: VDI 4640Blatt2
Publication date standards: 1.6.2019
The number of pages: 139
Approximate weight : 448 g (0.99 lbs)
Country: German technical standard
Category: Technical standards VDI