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ASTM E 2139 : 2005

ASTM E 2139 : 2005

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Test Method for Same-Different Test

Available format(s)

Hardcopy , PDF

Superseded date

09-04-2019

Language(s)

English

Published date

01-11-2005

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 15.08, 2014 Defines a procedure for comparing two products.

1.1 This test method describes a procedure for comparing two products.

1.2 This test method does not describe the Thurstonian modeling approach to this test.

1.3 This test method is sometimes referred to as the simple-difference test.

1.4 A same-different test determines whether two products are perceived to be the same or different overall.

1.5 The procedure of the test described in this test method consists of presenting a single pair of samples to each assessor. The presentation of multiple pairs would require different statistical treatment and it is outside of the scope of this test method.

1.6 This test method is not attribute-specific, unlike the directional difference test.

1.7 This test method is not intended to determine the magnitude of the difference; however, statistical methods may be used to estimate the size of the difference.

1.8 This test method may be chosen over the triangle or duo-trio tests where sensory fatigue or carry-over are a concern, or where a simpler task is needed.

This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Committee
E 18
DocumentType
Test Method
Pages
12
ProductNote
Reconfirmed 2005
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy

ASTM E 460 : 2012 Standard Practice for Determining Effect of Packaging on Food and Beverage Products During Storage
ASTM E 3093 : 2019 Standard Guide for Structured Small Group Product Evaluations

ASTM E 1871 : 2017 : REDLINE Standard Guide for Serving Protocol for Sensory Evaluation of Foods and Beverages
ISO 5495:2005 Sensory analysis — Methodology — Paired comparison test

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PDF - English
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