Résumé :
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The book, ASTM Data Series DS 48, contains tabulated threshold data of odour and taste; such data may be incorporated into regulatory specifications to define permissible odour limits, for example, from Diesel-powered equipment or industrial waste discharges. Reliability of many of the values listed is questionable since experimental procedures and precautions followed in obtaining the data were seldom described in unequivocal terms. Standardization of test conditions is recommended. A clear consistent definition of threshold terminology is given. The book is divided into 3 sections, the first of which consists of an alphabetical listing of compounds together with a code number for each compound. The 2nd section is a table containing the code (acquisition) number and codes for modality (odour and taste), threshold type (detection, recognition, others), media, purity, threshold values and threshold units; it also contains mol. wt., Wiswesser Line Notation (WLN) and a reference for each compound. The 3rd section is a WLN permutation of threshold chemicals.
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