90.93 Standard confirmed Feb 8, 2022
ISO
ISO/TC 67/SC 3 Drilling and completion fluids, well cements and treatment fluids
International Standard
75.020 Extraction and processing of petroleum and natural gas | 91.100.10 Cement. Gypsum. Lime. Mortar
ISO 10426-1:2009 specifies requirements and gives recommendations for six classes of well cements, including their chemical and physical requirements and procedures for physical testing.
ISO 10426-1:2009 is applicable to well cement classes A, B, C and D, which are the products obtained by grinding Portland cement clinker and, if needed, calcium sulfate as an interground additive. Processing additives can be used in the manufacture of cement of these classes. Suitable set-modifying agents can be interground or blended during manufacture of class D cement.
ISO 10426-1:2009 is also applicable to well cement classes G and H, which are the products obtained by grinding clinker with no additives other than one or more forms of calcium sulfate, water or chemical additives as required for chromium (VI) reduction.
WITHDRAWN
ISO 10426-1:2005
PUBLISHED
ISO 10426-1:2009
90.93
Standard confirmed
Feb 8, 2022