UNE-EN ISO 13501:2011 Petroleum and natural gas industries - Drilling fluids - Processing equipment evaluation (ISO 13501:2011) (Endorsed by AENOR in July of 2011.)
2011UNE-EN ISO 13501:2011 Petroleum and natural gas industries - Drilling fluids - Processing equipment evaluation (ISO 13501:2011) (Endorsed by AENOR in July of 2011.)