DVGW W 135 : 1998
Withdrawn
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
REHABILITATION AND RECONSTRUCTION OF DRILLINGS, SURVEYING SPOTS OF THE UNDERGROUND-WATER AND WELLS
Withdrawn date
04-02-2021
Published date
12-01-2013
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| DevelopmentNote |
DRAFT 2017 issued in February 2017. (02/2017)
|
| DocumentType |
Standard
|
| PublisherName |
Wirtschafts und Verlagsgesellschaft Gas und Wasser
|
| Status |
Withdrawn
|
| VDI 4640 Blatt 3:2001-06 | Utilization of the subsurface for thermal purposes - Underground thermal energy storage |
| VDI 4640 Blatt 2:2001-09 | Thermal use of the underground - Ground source heat pump systems |
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