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 2 Pine Trees, Chertsey Lane, Staines-upon-Thames, TW18 3HR, UK The Source Convent Drive Waterbeach Cambridge CB25 9QT Contact: Dr R Lenk Tel: +44 (0) Fax: +44 (0) pure.chemistry@romil.com Website: Reference material production at the above address DETAIL OF ACCREDITATION MONO AND MULTI ELEMENT Aluminium Antimony Arsenic Arsenic (III) Arsenic (V) Barium Bismuth Boron Carbon Cadmium Caesium Calcium Cerium Chromium(III) Chromium(VI) Cobalt Copper Dysprosium Erbium Europium Gadolinium Gallium Gold Hafnium Holmium Indium Iron Lanthanum Lead Lithium Lithium-6 Lutetium Magnesium Manganese Assessment Manager: DL Page 1 of 6
2 MONO AND MULTI ELEMENT (cont d) Mercury Molybdenum Neodymium Nickel Palladium Phosphorus Platinum Potassium Praseodymium Rubidium Samarium Scandium Selenium Silver Sodium Strontium Sulphur Tellurium Terbium Thallium Thulium Tin Vanadium Ytterbium Yttrium Zinc Zirconium Beryllium Germanium Iridium Niobium Rhenium Rhodium Ruthenium Silicon Tantalum Thorium Titanium Tungsten Uranium Measurement for each by ICP Assessment Manager: DL Page 2 of 6
3 MONO AND MULTI ELEMENT (cont d) Other Elements (The organisation hold a flexible scope for these solutions) MONO AND MULTI ION Acetate Adipate Ammonia Ammonia-N Ammonium Ammonium-N Benzoate Bromate Bromide Butyrate Carbonate Chlorate Chloride Chromate Cinnamate Citrate Cyanide Dichromate Fluoride Formate Glutarate Glycolate Iodate Iodide Lactate Malate Maleate Malonate Methanesulphonate Nitrate Nitrate-N Nitrite Nitrite-N Oxalate Perchlorate Phosphate Phosphate-P Range determination is part of the Assessment Manager: DL Page 3 of 6
4 MONO AND MULTI ION (cont d) Phthalate Pivalate Propionate Succinate Sulphate Sulphate-S Sulphide Tartrate Thiocyanate Chlorite Other Ions (The organisation hold a flexible scope for these solutions) Reference Solutions and Liquids with Density Properties STOICHIOMETRIC REFERENCE MATERIALS Ammonium Cerium(IV) Nitrate Ammonium Cerium(IV) Sulphate 2H2O Arsenic Trioxide Benzoic Acid Calcium Carbonate EDTA di-sodium salt 2H2O Oxalic Acid 2H2O Potassium Bromide Potassium Chloride Potassium Dichromate Potassium di-hydrogen Phosphate Potassium Hydrogen Phthalate Potassium Iodate Potassium Iodide Sodium Carbonate Sodium Chloride Sodium Dodecyl Sulphate Sodium Oxalate Sulphamic Acid Tris(hydroxymethyl)methylamine Zinc Range determination is part of the Range 0.85g/ml to 1.62g/ml at 20 C Assay (%m/m) Measurement by IC Measurement by single primary method at ROMIL Assessment Manager: DL Page 4 of 6
5 STOICHIOMETRIC REFERENCE MATERIALS (cont d) Other Stoichiometric Reference Materials (The organisation holds a flexible scope for the Assay of suitable materials) Bound Nitrogen reference solution Cyanide-complex reference solution Silica reference solution Total Inorganic Carbon reference solution Total Organic Carbon reference solution Other Reference Solutions (The organisation holds a flexible scope for the certification of suitable materials) Holmium UV/Vis reference solution Potassium Dichromate UV/Vis reference solutions Other UV/Vis reference solutions (The organisation holds a flexible scope for the certification of suitable materials) CONDUCTIVITY REFERENCE SOLUTIONS Assay (%m/m) Range determination is part of the Wavelength at 241.1nm, 278.0nm, 287.5nm, 361.2nm, 416.6nm, 451.3nm, 485.3nm, 537.0nm, 640.8nm Absorbance at 235nm, 257nm, 313nm, 350nm Absorbances are part of the Measurement by a single primary definitive method at ROMIL Measurement by a single primary definitive method at ROMIL Potassium Chloride solutions Electrical conductivity at 25 ºC 84 µs/cm, 147µS/cm, 1408µS/cm, 1413µS/cm, 12880µS/cm, µS/cm Measurement by a single primary definitive method at ROMIL Assessment Manager: DL Page 5 of 6
6 TRACEABLE VOLUMETRIC REAGENTS Acetic Acid Ammonia (organic solution) Ammonium Hydroxide Ammonium Thiocyanate Barium Hydroxide Calcium Chloride Cerium(IV) Sulphate Dodecylbenzenesulphonic Acid EDTA di-sodium salt Hyamine Hydrochloric Acid Hydrofluoric Acid Iodine Nitric Acid Oxalic Acid Perchloric Acid (organic solution) Potassium Bromate/Bromide Potassium Chloride Potassium Dichromate Potassium Hydroxide (aqueous) Potassium Hydroxide (organic soln) Potassium Iodate Potassium Iodate/Iodide Potassium Methoxide Potassium Permanganate Potassium Thiocyanate Silver Nitrate Sodium Arsenite Sodium Carbonate Sodium Chloride Sodium Dodecyl Sulphate Sodium Hydroxide Sodium Thiosulphate Sulphuric Acid Other volumetric reagents (The organisation holds a flexible scope for the certification of suitable materials) Concentration Expressed as Molarity at 20 C Concentration Expressed as Molarity at 20 C END Assessment Manager: DL Page 6 of 6
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