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ISBN 978 0 7559 6510 6 (Web only publication)
This document is also available in pdf format (492k)

Contents

INTRODUCTION
1. About the approval process
Basis of Approval
The Committee on Products and Processes
The Annual List of Approved Products
2. Report 2005
Committee Business
Communications with water industry and approval holders
Audit of approved products
European developments in construction products and treatment chemicals
3. Membership of the Committee

THE ANNUAL LIST OF APPROVED SUBSTANCES AND PRODUCTS UNDER REGULATION 31

PART A - CHEMICALS AND FILTER MEDIA
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. 2. Adsorbents
A. 3. Ion Exchange Resins Systems
A.3.1 Ion exchange resins
A.3.2 Ion exchange resin based processes
A. 4. Disinfectants or Cleaning Agents of Waterworks Apparatus and Distribution Systems
A. 5. Disinfectants 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
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 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. 2 Products for Emergency Use
B.2.1. Hoses
B.2.2. Bowsers/tanks
B.2.3 Liner bags

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 physical treatment of water

Appendix 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 during 2004
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
1.6.1 Products deleted because they are no longer supplied or their approval has lapsed
1.6.1 Products deleted because they are covered by a BSEN
1.7 Changes in ownership or designation of approved products
1.7.1 Change in company name or ownership
1.7.2 Change in product designation

Appendix 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 organic Materials on water
2.4 List of Authorised Cement Admixtures

Appendix 3: Contractors Approved for the In-Situ Applications of Polymeric Coatings
3.1 Lining Contractors with full third party certification approved by WRc plc for the in situ application of polymeric linings
3.2 Lining Contractors with full third party certification approved by FaberMaunsell for the in situ application of polymeric linings
3.3 Lining Contractors with full third party certification approved by WRC- NSF for the in situ application of polymeric linings
3.4 Lining Contractors with full third party certification approved by RPS for the in situ application of polymeric linings

Appendix 4: Listings
4.1 Manufacturers' and suppliers' addresses

Amended February 2007

Corrections to listing of the following:
Products: Sarnafil MCG 7 80-15.
Hycote 160PW

Additional condition for the use of site applied coatings, see section C3.1

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