Devices to prevent pollution by backflow of potable water. Unrestricted air gap. Family A. Type A Ingestion-build-93833 and counteracting adverse effects on

and counteracting adverse effects on human health and performance

This British Standard covers plate

What is ISO/IEC 27009 about

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

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

Devices to prevent pollution by backflow of potable water. Unrestricted air gap. Family A. Type A Ingestion-build-93833 and counteracting adverse effects on1 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