DVGW W 116 : 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Withdrawn
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
USE OF MUD ADDITIVES IN DRILLING FLUIDS FOR DRILLING IN GROUNDWATER
Withdrawn date
04-02-2021
Published date
12-01-2013
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| DocumentType |
Standard
|
| PublisherName |
Wirtschafts und Verlagsgesellschaft Gas und Wasser
|
| Status |
Withdrawn
|
| VDI 4640 Blatt 2:2001-09 | Thermal use of the underground - Ground source heat pump systems |
| VDI 4640 Blatt 3:2001-06 | Utilization of the subsurface for thermal purposes - Underground thermal energy storage |
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