NF M87-301-4*NF EN ISO 10426-4:2005 Petroleum and natural gas industries - Cements and materials for well cementing - Part 4 : preparation and testing of foamed cement slurries at atmospheric pressure
2005NF M87-301-4*NF EN ISO 10426-4:2005 Petroleum and natural gas industries - Cements and materials for well cementing - Part 4 : preparation and testing of foamed cement slurries at atmospheric pressure