Steel strip sheaths for prestressing tendons. Terminology, requirements, quality control Ingestion-build-48974 BS 9250:2007 provides guidance on

BS 9250:2007 provides guidance on methods that can be used to meet the “well sealed ceiling” requirements for cold and warm pitched roofs

Treatment of imperfections and defects disclosed by visual examination

This standard will be called up in BS EN 13986 for construction applications

EN 61300-2-6

3:1992 and BS 6100-2

Steel strip sheaths for prestressing tendons. Terminology, requirements, quality control Ingestion-build-48974 BS 9250:2007 provides guidance on1 Scope This European Standard is applicable to uncoated cylindrical steel sheaths with a corrugated profile and with a nominal internal diameter of up to 130 mm and their connectors (couplers) which are assembled to form ducts for prestressing tendons in post tensioned prestressed concrete structures. It is only applicable to sheaths and connectors made of interlocked or welded steel strip1). It does not cover plastic sheaths2). The seals required