國際上對自來水有pH值為6.0-8.5的限制，原因是由於自來水輸送的水管可能發生管線腐蝕的問題影響水質，和可能對公眾健康的影響。然而，自來水經過濾處理之後（經過濾或淨化過程），這pH值的限制不再適用於自來水。

瓶裝水需使用國家合格的原水，經過濾處理與消毒殺菌後再充填完成與販售，因此將自來水對pH值6.0-8.5的限制規定，使用在瓶裝水是一種誤會。

關於瓶裝飲用水的pH值標準，我們樂意提供以下資訊：

 

 

 

 

 

 

 

 

 

附件

附件（1）：Page 409世衛組織飲用水指南。

網址：
http://apps.who.int/iris/bitstream/handle/10665/44584/9789241548151_eng.pdf;jsessionid=8CDC0D07EF25B04CC9810495536CD1EF?sequence=1

In the event of a spill, it may be necessary to carry out a context-specific assessment of the risk to health. The fact that petroleum products are complex mixtures of many individual hydrocarbons is a complicating factor in determining the potential risks to consumers. The traditional approach of evaluating individual chemicals in assessing the risks from drinking-water is therefore largely inappropriate. In order to overcome this difficulty, it is more practical to consider a series of hydrocarbon fractions and to determine appropriate tolerable concentrations for those fractions. The most widely accepted approach is that developed by the Total Petroleum Hydrocarbons Criteria Working Group in the USA, which divided total petroleum hydrocarbons into a series of aliphatic and aromatic fractions based on the number of carbon atoms and the boiling point, to give equivalent carbon numbers. This pragmatic approach provides a suitable basis for assessing the potential health risks associated with larger-scale contamination of drinking-water by petroleum products. The allocation of 10% of each of the reference doses, equivalent to TDIs, for the various fractions to drinking-water provides a conservative assessment of the risks. Although the approach is based on the analysis of hydrocarbon fractions, most are of low solubility, and the most soluble fractions, consisting largely of lower molecular weight aromatic hydrocarbons, will be present in the greatest concentration.

pH
No health-based guideline value is proposed for pH. Although pH usually has no direct impact on consumers, it is one of the most important operational water quality parameters (see chapter 10).

Reason for not establishing a guideline value	Not of health concern at levels found in drinking-water
Additional comments	An important operational water quality parameter
Assessment date	1993
Principal reference	WHO (2007) pH in drinking water

2-Phenylphenol and its sodium salt
2-Phenylphenol (CAS No. 90-43-7) is used as a disinfectant, bactericide and virucide. In agriculture, it is used in disinfecting fruits, vegetables and eggs. It is also used as a general surface disinfectant in hospitals, nursing homes, veterinary hospitals, poultry farms, dairy farms, commercial laundries, barbershops and food processing plants. 2-Phenylphenol is readily degraded in surface waters, with a half-life of about 1 week in river water.

 

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附件（2）：台灣關於pH的法律和法規。

網址：
http://law.moj.gov.tw/ENG/LawClass/LawAll.aspx?PCode=O0040019

D. Limit range of residual chlorine (Limited to water supply systems using chlorine as disinfectant):

Item	Maximum limit	Unit
Free available residual chlorine	0.2-1.0	milligrams/liter

E. Range for pH index (water treated by stationary continuous water supply equipment on public or private premises are not be subjected to this limitation):

Item	Maximum limit	Unit
Hydrogen ion concentration index (pH value)	6.0-8.5	No unit

 

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附件（3）：世界各地的鹼性水產品圖片。

目前市場上出售的鹼性離子水

a) 美國的Essentia Water（pH 9.5）

網址：https://essentiawater.com/

b) 日本麒麟鹼性離子水（pH 8.5 - 9.3）

網址：https://www.kirin.co.jp/company/english/about/kirinbeverage/

c) 台灣統一的鹼性離子水（pH 9.0）

網址：https://www.uni-president.com/

d) 台灣台鹽海洋鹼性離子水（pH 8.0-9.5）

網址：http://www.tybio.com.tw/

e) 越南的ION LIFE離子水（pH 8.5-9.5）

網址：http://www.ionlife.com.vn/

 

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附件（4）: 日本MOH認證家用水電離器作為醫療器械。

 

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附件（5）: 韓國家用水電離器認證。