ISBN 978 0 7559 1983 3 (Web only publication)
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Contents
INTRODUCTION
1. Introduction
The Approval Process
Basis of Approval
Products approved under previous regulations
Review of Approved Products
The Annual List of Approved Products
INTRODUCTION TO THE LIST OF APPROVED PRODUCTS
PART A - CHEMICALS AND FILTER MEDIA
Introduction
A. 1 Flocculants and Coagulants
A.1.1 Products based on tannin
A.1.2 Products based on aluminium and iron
A.1.3 Products based on iron
A.1.4 Products based on polyacrylamide
A.1.5 Products based on polyamine
A.1.6 products based on polyDADMAC (Polydiallyldimethyl ammonium chloride)
A. 2 Adsorbents
A. 3 Ion Exchange Resins Systems
A.3.1 Ion exchange resins
A.3.2 Ion exchange resin based processes
A. 4 Disinfestation, Disinfection or Cleaning Agents of Waterworks Apparatus and Distribution Systems
A. 5 Disinfection or Cleaning Agents of Membranes
A. 6 Disinfectants for Emergency Use
A. 7 Products Based on Traditional Chemicals
A.7.1 Traditional Chemicals
A.7.2 On-site electrolytic generation of chlorine ( OSEC)
A. 8 Disinfestation Agents
A. 9 Other Chemicals
A.10 Filter Media
PART B - PRODUCTS USED FOR THE CONVEYANCE OF WATER
B. 1 Pipes
B.1.1 Polyethylene ( PE) pipes
B.1.2 Barrier and Laminated pipes
B.1.3 Polyvinylchloride ( PVC) pipes
B.1.4 Acrylonitrile-butadiene-styrene copolymer ( ABS)
B.1.5 Polyethylene terephthalate ( PET)
B.1.6 Glass reinforced plastic ( GRP) pipes
B.1.7 Cement mortar lined pipes
B.1.8 Pipes coated with factory applied nylon resins
B.1.9 Pipes coated with factory applied epoxy resin
B.1.10 Stainless steel pipes
B.1.11 Coated pipes suitable for total immersion in water
B.1.12 Pipes coated with a factory applied polyolefin
B. 2 Products for Emergency Use
B.2.1 Hoses
B.2.2 Bowsers/tanks
B.2.3 Liner bags
B.2.4 Treatment chemicals
PART C - LINING /COATINGS AND SEALANT & REPAIR MATERIALS
C.1 In-situ Installed (tubular) pipe linings
C.2 In-situ applied Pipe Coatings
C.2.1 Coatings based on epoxy resins
C.2.2 Coatings based on polyurethane
C.3 Site applied coatings for water retaining structures
C.3.1 Coatings based on epoxy resins
C.3.2 Coatings based on polyurethane
C.3.3 Coatings based on ebonite
C.4 Flexible covers and linings for water retaining structures
C.5 Cementitious coatings
C.6 Sealant & Repair Materials
PART D - MEMBRANE AND FILTRATION SYSTEMS
D.1 Membrane and Filtration Elements/Systems
D.2 Vessels and Containers for Membrane and Filtration Elements
D.3 Electrodialysis Water Treatment Units
PART E - OTHER WATER TREATMENT WORKS INSTALLATIONS
E.1 Tanks
E.2 Underdrains
E.3 Pressure vessels
E.4 Other Products used for the treatment of water
PART F - LOW CONTACT COMPONENTS & PRODUCTS
Introduction
Annex 1 Changes to Approvals and Amendments to the List of Approved Products
1.1 Modified conditions of approval
1.2 List of products refused approval
1.3 Prohibition of use of substances and products
1.4 Revocation of approval
1.5 Approval of processes
1.6 Deletions from the list of approved products in the last twelve months
1.6.1 Products deleted because they are no longer supplied or their approval has lapsed
1.6.2 Products deleted because they are covered by a BSEN
1.7 Changes in ownership or designation of approved products in the last twelve months
1.7.1 Change in company name or ownership
1.7.2 Change in product designation
1.8 Additional Products added to the List in the last twelve months (which have been consolidated into the main text of this list)
1.8.1 New products approved in the last twelve months
1.8.2 Reinstated products
1.9 Changes to existing products in the last twelve months
1.10 New and revised BSEN standards issued in the last twelve months
Annex 2 List of Relevant European Standards and authorised Components
2.1 British standards ( BSEN) for chemicals used for treatment of water
2.2 British Standards ( BSEN) for inorganic supporting and filtering materials
2.3 British Standards ( BSEN) on the influence of Materials on water
2.4 List of Authorised Cement Admixtures
Annex 3 Recognised materials for use in the manufacture or assembly of products
Annex 4 Manufacturers' and suppliers' addresses
DOCUMENT CONTROL
The only controlled version of this document can be accessed on the DWI Website - www.dwi.gov.uk/31. Printed copies of this document, together with electronic copies held on local computers and other storage devices are uncontrolled.
Last updated 16 th March 2009
UNCONTROLLED IF PRINTED Issue date: 16 th March 2009
Errors and corrections:
Please email us if you find any errors or if corrections are needed
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