prEN ISO 10426-1
Naftos ir gamtinių dujų pramonė. Cementai ir medžiagos gręžiniams cementuoti. 1 dalis. Techniniai reikalavimai (ISO/DIS 10426-1:2026)
Standarto projektas Viešoji apklausaProjekto etapai
1. Decision on WI Proposal
2. Projektas
3. Viešoji apklausa
Nuo 2026-05-03
iki 2026-07-02
4. Closure of enquiry
5. Submission to Formal Vote
Organizacija
CEN Europos standartizacijos komitetasICS
91.100.10 - Cementas. Gipsas. Kalkės. SkiedinysUžsienio technikos komitetas
CEN/TC 12Komentarų skaičius
0Komentavimo pradžia
2026-05-03Taikymo sritis
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.Ryšiai
Pakeis
LST EN ISO 10426-1:2010/AC:2010
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