Schedule of Accreditation issued by United Kingdom Accreditation Service 2 Pine Trees, Chertsey Lane, Staines-upon-Thames, TW18 3HR, UK

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1 Laboratory locations: 2 Pine Trees, Chertsey Lane, Staines-upon-Thames, TW18 3HR, UK Scientific Services Contact: Mr Iain Hunter Tel: +44 (0) ITHunter@somerset.gov.uk below s covered by the organisation and their relevant activities details ctivity code ddress Scientific Services Local contact Iain Hunter Tel: +44 (0) ITHunter@somerset.gov.uk Chemistry testing ddress Scientific Services Local contact Mrs S Larkman Tel: +44 (0) sjlarkman@somerset.gov.uk Site activities performed away from the locations listed above: details ctivity code Premises including domestic, commercial and industrial Mobile Testing Laboratory C ssessment Manager: GE Page 1 of 5

2 Scientific Services DETIL OF CCREDITTION Health and Safety Executive sbestos: The analysts guide for sampling, analysis and clearance procedures (HSG 248) SESTOS FIRES IN IR Fibre Counting Membrane Filter Method using Phase Contrast Microscopy (PCM) by Documented In- House Method No R22, C Sampling of air for fibre counting No R25 4 Stage Clearance Process No R25 SESTOS IN ULK MTERILS including materials and products suspected of containing asbestos Sampling of bulk materials for asbestos identification Identification of: mosite Chrysotile Crocidolite Fibrous ctinolite Fibrous nthophyllite Fibrous Tremolite documented in house method No R24 No R23 using stereo-microscopy, polarised light microscopy and dispersion staining and phase contrast ssessment Manager: GE Page 2 of 5

3 Scientific Services WTERS Raw and Potable (nonregulatory) Waters Chemical Tests Methods documented in-house Water and ssociated Materials Standing Committee of nalysts luminium arium oron Chromium Copper Iron Manganese Nickel Zinc mmonia Calcium Magnesium Sodium Potassium Total Hardness (calculation) W151 by ICP-ES W032 based on ISN W135 by ICP-ES (calculation based on Ca and Mg analysis using W135 by ICP-ES) Turbidity W110 by ratio turbidimeter Process waters lkalinity W014 based on ISN Conductivity (screening method) W101 based on ISN HMSO 1978 ssessment Manager: GE Page 3 of 5

4 Scientific Services WTERS (cont d) Chemical Tests (cont d) Methods documented in-house Water and ssociated Materials Standing Committee of nalysts (cont d) Process waters (cont d) Fluoride Chloride Nitrate Phosphate Sulphate W100 based on ISN HMSO 1990 Nitrite W017 based on ISN ph W001 based on ISN HMSO 1978 Suspended Solids and Suspended Solids (ignited) W005 based on ISN X HMSO 1980 Total Dissolved Solids W013 based on ISN X HMSO 1980 Chemical Tests mmonia W153 iochemical Oxygen Demand Chemical Oxygen Demand (COD) W009 based on ISN W011 using colorimetry ssessment Manager: GE Page 4 of 5

5 Scientific Services WTERS (cont d) Chemical Tests (cont d) Methods documented in-house Water and ssociated Materials Standing Committee of nalysts (cont d) Process waters (cont d) Nickel Lead Copper Zinc Iron Cadmium Manganese Chromium W122 by ICP-ES END ssessment Manager: GE Page 5 of 5