《評論》逆滲透水機的問題

以下是WHO世界衛生組織解釋TDS測試筆的說明其中說明TDS是測試水中礦物質

而非乾淨與否請確認使用功能http://www.who.int/en/　如要確認請連結WHO

查詢TDS12.115 Total dissolved solids (TDS)TDS comprise inorganic salts (principally calcium

magnesium

potassium

sodium

bicarbonates

chlorides and sulfates) and small amounts of organic matter that aredissolved in water. TDS in drinking-water originate from natural sources

sewage

urban runoff and industrial wastewater. Salts used for road de-icing in some countriesmay also contribute to the TDS content of drinking-water. Concentrations ofTDS in water vary considerably in different geological regions owing to differences inthe solubilities of minerals.Reliable data on possible health effects associated with the ingestion of TDS indrinking-water are not available

and no health-based guideline value is proposed.However

the presence of high levels of TDS in drinking-water may be objectionableto consumers (see chapter 10).