CEN/TC 12
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 27304 | LVS EN ISO 10426-2:2004 /AC:2007 | Petroleum and natural gas industries - Cements and materials for well cementing - Part 2: Testing of well cements | Standarts spēkā |
| 27304 | EN ISO 10426-2:2003/AC:2007 | Petroleum and natural gas industries - Cements and materials for well cementing - Part 2: Testing of well cements (ISO 10426-2:2003/Cor 1:2006) | Izstrādē |
| 27285 | EN ISO 10426-6:2008 | Petroleum and natural gas industries - Cements and materials for well cementing - Part 6: Methods for determining the static gel strength of cement formulations (ISO 10426-6:2008) | Izstrādē |
| 27285 | LVS EN ISO 10426-6:2008 | Petroleum and natural gas industries - Cements and materials for well cementing - Part 6: Methods for determining the static gel strength of cement formulations (ISO 10426-6:2008) | Standarts spēkā |
| 27284 | LVS EN ISO 17078-4:2010 | Petroleum and natural gas industries - Drilling and production equipment - Part 4: Practices for side-pocket mandrels and related equipment (ISO 17078-4:2010) | Standarts spēkā |
| 27284 | EN ISO 17078-4:2010 | Petroleum and natural gas industries - Drilling and production equipment - Part 4: Practices for side-pocket mandrels and related equipment (ISO/FDIS 17078-4:2009) | Izstrādē |
| 27225 | EN ISO 11960:2004/AC:2007 | Petroleum and natural gas industries - Steel pipes for use as casing or tubing for wells (ISO 11960:2004/Cor 1:2006) | Atcelts |
| 27225 | LVS EN ISO 11960:2005 /AC:2007 | Petroleum and natural gas industries - Steel pipes for use as casing or tubing for wells | Atcelts |
| 27211 | LVS EN ISO 13500:2009 | Petroleum and natural gas industries - Drilling fluid materials - Specifications and tests (ISO 13500:2008) | Standarts spēkā |
| 27211 | EN ISO 13500:2008 | Petroleum and natural gas industries - Drilling fluid materials - Specifications and tests (ISO/FDIS 13500:2008) | Izstrādē |
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