標準號：BS EN 1622-2006
中文標準名稱：水分析.*限臭味值(TON)和*限香味值(TFN)測定
英文標準名稱：Water quality - Determination of the threshold odour number (TON) and threshold flavour number (TFN)
標準類型：C50;Z16
發布日期：2006/9/29 12:00:00
實施日期：2006/9/29 12:00:00
中國標準分類號：C50;Z16
國際標準分類號：13.060.60
引用標準：ISO 7393-2
適用范圍：This European Standard specifies quantitative methods for determining the TON and TFN of waters and alsoa qualitative method for determining any abnormal odour and/or flavour. It is essential that the safety remarksin Clause 5 are taken into account.Two quantitative methods are described:- a short method applicable when either a sample has no odour and flavour or when the odour and flavourare to be compared with a specified threshold number;- a full method applicable when the threshold number for the sample is to be determined.For both quantitative methods, two different methodologies are described:- unforced choice in the standard;- forced choice in Annex B.Both methods are applicable for quantifying the odour and flavour of drinking water and/or migration watersfrom materials in contact with waters.NOTE The choice of the quantitative or qualitative method is depending on the national regulations, and on the typeof water to be assessed (raw water, distribution water, migration water ….)