Devices to prevent pollution by backflow of potable water. Unrestricted air gap. Family A. Type A Ingestion-build-93833 Poly( butylene terephthalate) (PBT)

Poly( butylene terephthalate) (PBT)

NOTE The methods described are not applicable to all plastics in powdered and granular form

What is ISO/IEC 27009 about

ISO 14063 gives you guidelines for general principles

Why should you use BS EN 60268-12 - Sound system equipment

Devices to prevent pollution by backflow of potable water. Unrestricted air gap. Family A. Type A Ingestion-build-93833 Poly( butylene terephthalate) (PBT)1 Scope This European standard specifies the characteristics and the requirements of unrestricted air gaps Family A Type A intended for protection of potable water in water installations from pollution. This standard applies to air gaps in factory assembled products and to constructed air gaps in situ, and defines the physico chemical characteristics of materials of construction used for the purpose and application to ensure compliance with this