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ASTM E2610-2008 感官分析方法二、三点检验的标准试验方法

ASTM E2610-2008 感官分析方法二、三点检验的标准试验方法

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【英文标准名称】: Standard Test Method for Sensory Analysisx2014;Duo-Trio Test
【原文标准名称】: 感官分析方法二、三点检验的标准试验方法
【标准号】: ASTM E2610-2008
【标准状态】: 现行
【国别】: 美国
【发布日期】: 2008
【实施或试行日期】:
【发布单位】: 美国材料与试验协会(US-ASTM)
【起草单位】: E18.04
【标准类型】: (Test Method)
【标准水平】: ()
【中文主题词】:
【英文主题词】: difference testing; discrimination test; duo-trio test; sensory analysis; similarity testing
【摘要】: The test method is effective for the following test objectives: To determine whether a perceivable difference results or a perceivable difference does not result, for example, when a change is made in ingredients, processing, packaging, handling or storage; or To select, train and monitor assessors. The test method itself does not change whether the purpose of the duo-trio test is to determine that two products are perceivably different versus that the products are not perceivably different. Only the selected values of pd, x03B1;, and x03B2; change. If the objective of the test is to determine if there is a perceivable difference between two products, then the value selected for x03B1; is typically smaller than the value selected for x03B2;. If the objective is to determine if the two products are sufficiently similar to be used interchangeably, then the value selected for x03B2; is typically smaller than the value selected for x03B1; and the value of pd is selected to dexFB01;ne x201C;sufficiently similar.x201D; The test method may change based on the test objective or the assessorsx2019; familiarity with the product. The balanced-reference technique (see 9.1.1) typically is used when neither product is more familiar than the other. The constant-reference technique (see 9.1.2) frequently is used when one product is a control/current product or is familiar to the assessors.1.1 This test method covers a procedure for determining whether a perceptible sensory difference exists between samples of two products. 1.2 This test method applies whether a difference may exist in a single sensory attribute or in several. 1.3 This test method is applicable when the nature of the difference between the samples is unknown. It does not determine the size or the direction of the difference. The attribute(s) responsible for the difference are not identified. 1.4 Compared to the triangle test, the duo-trio test is statistically less efficient, but easier to perform by the assessors. For details on how the duo-trio test compares to other three-sample tests, see Refs (1-4). 1.5 This test method is applicable only if the products are homogeneous. If two samples of the same product can often be distinguished, then another method, for example, descriptive analysis, may be more appropriate. 1.6 This test method is applicable only when the products do not cause excessive sensory fatigue, carryover or adaptation. 1.7 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.
【中国标准分类号】: X04
【国际标准分类号】: 67_24
【页数】: 8P.;A4
【正文语种】: 英语

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