Devices to prevent pollution by backflow of potable water. Unrestricted air gap. Family A. Type A Ingestion-build-93833 This European Standard establishes values

This European Standard establishes values for safety distances to prevent access and distances to impede free access by the lower limbs of persons of 14 years of age and above

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

ISO 14063 gives you guidelines for general principles

Poly( butylene terephthalate) (PBT)

The following types of floating substructures are explicitly considered within the context of this document:

Devices to prevent pollution by backflow of potable water. Unrestricted air gap. Family A. Type A Ingestion-build-93833 This European Standard establishes values1 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