標準號：DIN EN 1622-2006
中文標準名稱：水質.氣味*限值(TON)和味道*限值(TFN)測定
英文標準名稱：Water quality - Determination of the threshold odour number (TON) and threshold flavour number (TFN); English version of DIN EN 1622:2006-10
標準類型：Z16
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：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 also a qualitative method for determining any abnormal odour and/or flavour. It is essential that the safety remarks in 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 flavour are 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 waters from materials in contact with waters.