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<strong>STC</strong> <strong>Test</strong> <strong>Report</strong>Date : 2009-04-24 Page 2 of 4No. : HC229884Investigation Requested:For “AOK Portable Alkaline Ionizer” :1. For material : metal or metallic coating, except aluminium- Extractable Heavy Metal (Lead, Cadmium, Chromium (VI) and Nickel).For the dionized water which was stored in the “AOK Portable Alkaline Ionizer” for 10 minutes :2. Color3. Turbidity4. Ammonia content5. Chloride content6. Copper content7. Sodium content8. Sulphate contentComparison between tap water and tap water which was stored in the “AOK Portable Alkaline Ionizer”for 10 minutes :9. Aluminium content10. Calcium content11. Iron content12. Magnesium content13. Potassium content14. Zinc content15. pH value (at 25C)Method(s) Used:1. The sample was filled with distilled water at 100C for 24 hours. The heavy metal content ofextracting solution was then analysed using Atomic Absorption Spectrometry (AAS) and/orInductively Coupled Plasma Spectrometry Optical Emission Spectrometry (ICP-OES)2. Ref. APHA 18 th Ed 2120 C & HACH Colorimetric Method3. Ref. APHA 18 th Ed 2130 B4. Ref. APHA 20 th Ed 4500-NH 3 B & C5. Ref. APHA 20 th Ed 4500-Cl - B6-7: Inductively Coupled Plasma – Atomic Emission Spectrophotometry8. Ref. APHA 19 th Ed 4500-SO 4 2- E9-14: Inductively Coupled Plasma – Atomic Emission Spectrophotometry15. Ref. APHA 20 th Ed 4500-H + BThe Hong Kong Standards and <strong>Test</strong>ing Centre Ltd.10 Dai Wang Street, Taipo Industrial Estate, N.T., Hong KongTel : (852) 2666 1888 Fax : (852) 2664 4353 E-mail : hkstc@hkstc.org Homepage : www.hkstc.orgThis report shall not be reproduced unless with prior written approval from The Hong Kong Standards and <strong>Test</strong>ing Centre Ltd.
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