American Society for Testing & Materials (ASTM)
• American Concrete Institute (ACI)
• British Standards Institution (BSI)
• German Standards Institute (DIN)
• US National Ready Mixed Concrete Association (NRMCA).
• Pennsylvania Concrete Association
• US Portland Cement Association
• UK Construction Industry Research & Information Association (CIRIA)
• UK Concrete Society
• Saudi Aramco Research Laboratory
• King Fahd University of Petroleum & Minerals Research Laboratory