Devices to prevent pollution by backflow of potable water. Unrestricted air gap. Family A. Type A1 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

Mechanical test methods deliver scientific data which introduce a more scientific means of ensuring compliance with the originally type tested package

Biological indicator test runners

Use of subcontractors

and quality assessment

specifies sample preparation and extraction procedures for establishing the release or content of organic compounds from those toys for which requirements exist in BS EN 71-9

Additional references for the use of alternative renovation materials and for methods of adhesion testing

Why should you use BS 2782-6:Method 641A- Flexible polyvinyl chloride sheet

PAS 72 specifies requirements for vessel operations and traceability in the sea fishing industry

some aspects of design

long-lasting and efficient use

Information security risk treatment

C/N (dB) for 5 % ESR in typical urban channel