DIN EN ISO 3421 E:2021-07 Offshore conduit design, burial depth and installation for drilling and production equipment in the oil and gas industry (draft)
2022DIN EN ISO 3421:2022-09 Petroleum and natural gas industries - Drilling and production equipment - Offshore conductor design, setting depth and installation (ISO 3421:2022); English version EN ISO 3421:2022
1970DIN EN ISO 3421 E:2021-07 Offshore conduit design, burial depth and installation for drilling and production equipment in the oil and gas industry (draft)