Name: ASTM E 679 : 2004
Brand: ASTM
Price: 122.77 AUD

ASTM E 679 : 2004

Superseded

Standard Practice for Determination of Odor and Taste Thresholds By a Forced-Choice Ascending Concentration Series Method of Limits

Available format(s)

Hardcopy , PDF

Superseded date

09-04-2019

Language(s)

English

Published date

01-04-2004

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 15.08, 2014 Specifies a rapid test for determining sensory thresholds of any substance in any medium.

1.1 This practice describes a rapid test for determining sensory thresholds of any substance in any medium.

1.2 It prescribes an overall design of sample preparation and a procedure for calculating the results.

1.3 The threshold may be characterized as being either (a) only detection (awareness) that a very small amount of added substance is present but not necessarily recognizable, or (b) recognition of the nature of the added substance.

1.4 The medium may be a gas, such as air, a liquid, such as water or some beverage, or a solid form of matter. The medium may be odorless or tasteless, or may exhibit a characteristic odor or taste per se.

1.5 This practice describes the use of a multiple forced-choice sample presentation method in an ascending concentration series, similar to the method of limits.

1.6 Physical methods of sample presentation for threshold determination are not a part of this practice, and will depend on the physical state, size, shape, availability, and other properties of the samples.

1.7 It is recognized that the degree of training received by a panel with a particular substance may have a profound influence on the threshold obtained with that substance (1).

1.8 Thresholds determined by using one physical method of presentation are not necessarily equivalent to values obtained by another method.

Committee	E 18
DocumentType	Standard Practice
Pages	7
ProductNote	Reconfirmed 2004
PublisherName	American Society for Testing and Materials
Status	Superseded
SupersededBy	ASTM E 679 : 2004 : R2011
Supersedes	ASTM E 679 : 1991 : R1997

EN 13725:2003/AC:2006	AIR QUALITY - DETERMINATION OF ODOUR CONCENTRATION BY DYNAMIC OLFACTOMETRY
ASTM D 1292 : 2015 : REDLINE	Standard Test Method for Odor in Water
ISO 13301:2002	Sensory analysis Methodology General guidance for measuring odour, flavour and taste detection thresholds by a three-alternative forced-choice (3-AFC) procedure