관심표준 등록 : 표준업데이트 시 알림을 받을 수 있습니다.
PDF : 직접 파일 다운로드 및 인쇄 (마이페이지 확인)
PRINT : 인쇄본 우편발송, 2~3일 소요(PDF파일 미제공)
분야 | ISO/TC 34/SC 12 : Sensory analysis |
---|---|
적용범위 | ISO 8588:2017 specifies a procedure for determining whether a perceptible sensory difference exists between samples of two products. The method applies whether a difference exists in a single sensory attribute or in several. The "A" ? "not A" test can be used in sensory analysis in the following ways: a) as a difference test, particularly for evaluating samples having variations, for example, in appearance (making it difficult to obtain strictly identical repeat samples) or in aftertaste (making direct comparison difficult); b) as a recognition test, particularly for determining whether an assessor or group of assessors identifies a new stimulus in relation to a known stimulus (for example, recognition of the quality of the sweet taste of a new sweetener); c) as a perception test, to determine the ability of an assessor to discriminate stimuli. The "A" ? "not A" test is not appropriate for assessing if two products are sufficiently similar to be used interchangeably (i.e. for similarity testing) because the "A" ? "not A" test inherently involves replicate evaluations of the same products by all assessors. These replicate evaluations violate the basic assumptions for similarity tests to be statistically valid. Examples of its application are given in Annex B. NOTE Bi and Ennis[1] point out that the estimate of the discriminal distance, d', between the "A" and "not A" samples is the same regardless of the nature of the replicated evaluations performed in the test but that the estimate of the variance of d' does depend on how the replicate evaluations were performed. As such, no general discussion of a Thurstonian analysis of the "A" ? "not A" method, nor of the power of the test is undertaken in this document. Interested readers are referred to Reference [1] for a detailed discussion of the topic. |
국제분류(ICS)코드 | 67.240 : 관능분석 |
페이지수 | 13 |
Edition | 2 |
No. | 표준번호 | 표준명 | 발행일 | 상태 |
---|---|---|---|---|
1 | ISO 8588:2017 | Sensory analysis — Methodology — "A" - "not A" test | 2017-07-21 | 표준 |
2 | ISO 8588:1987 | Sensory analysis — Methodology — "A" - "not A" test | 1987-05-07 | 구판 |
관련상품이 존재하지 않습니다.
ISO 5492:2008 - Sensory analysis — Vocabulary 상세보기
ISO 13301:2018 - Sensory analysis — Methodology — General guidance for measuring odour, flavour and taste detection thresholds by a three-alternative forced-choice (3-AFC) procedure 상세보기
ISO 11036:2020 - Sensory analysis — Methodology — Texture profile 상세보기
ISO 20481:2008 - Coffee and coffee products — Determination of the caffeine content using high performance liquid chromatography (HPLC) — Reference method 상세보기
ISO 13302:2003 - Sensory analysis — Methods for assessing modifications to the flavour of foodstuffs due to packaging 상세보기
IEC TS 63134:2020 - Active assisted living (AAL) use cases 상세보기
IEC 60034-5:2020 RLV - Rotating electrical machines - Part 5: Degrees of protection provided by the integral design of rotating electrical machines (IP code) - Classification 상세보기
KS B ISO TS 25740-1 - 에스컬레이터 및 무빙워크에 대한 안전요건 — 제1부: 세계공통 필수 안전요건(GESRs) 상세보기
KS B ISO TS 8100-21 - 승객 및 화물 운송용 엘리베이터 —제21부: 세계공통 필수안전요건(GESRs)을 충족하는 세계공통 안전 파라미터(GSPs) 상세보기
KS C IEC TS 62872 - 산업 시설과 스마트 그리드 사이의 산업 공정 측정, 제어 및 자동화 시스템 인터페이스 상세보기