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EVS-EN ISO 10426-1:2010

Petroleum and natural gas industries - Cements and materials for well cementing - Part 1: Specification

General information
Valid from 04.03.2010
Base Documents
ISO 10426-1:2009; EN ISO 10426-1:2009
Directives or regulations
None
Standard history
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This part of ISO 10426 specifies requirements and gives recommendations for six classes of well cements, including their chemical and physical requirements and procedures for physical testing. This part of ISO 10426 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. This part of ISO 10426 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.
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