{"id":371922,"date":"2024-10-20T02:26:56","date_gmt":"2024-10-20T02:26:56","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-41202021\/"},"modified":"2024-10-26T04:15:43","modified_gmt":"2024-10-26T04:15:43","slug":"bs-en-iso-41202021","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-41202021\/","title":{"rendered":"BS EN ISO 4120:2021"},"content":{"rendered":"

This document specifies a procedure for determining whether a perceptible sensory difference or similarity exists between samples of two products. The method is a forced-choice procedure. The method is applicable whether a difference exists in a single sensory attribute or in several attributes.<\/p>\n

The method is statistically more efficient than the duo-trio test (described in ISO 10399<\/span><\/span>), but has limited use with products that exhibit strong carryover and\/or lingering flavours.<\/p>\n

The method is applicable even when the nature of the difference is unknown [i.e. it determines neither the size nor the direction of difference between samples, nor is there any indication of the attribute(s) responsible for the difference]. The method is applicable only if the products are homogeneous.<\/p>\n

The method is effective for:<\/p>\n

    \n
  1. \n

    determining that:<\/p>\n

      \n
    1. \n

      either a perceptible difference results (triangle testing for difference);<\/p>\n<\/li>\n

    2. \n

      a perceptible difference does not result (triangle testing for similarity),<\/p>\n<\/li>\n<\/ol>\n

      when, for example, a change is made in ingredients, processing, packaging, handling or storage;<\/p>\n<\/li>\n

    3. \n

      selecting, training and monitoring assessors.<\/p>\n<\/li>\n<\/ol>\n

      PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
      PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
      2<\/td>\nNational foreword <\/td>\n<\/tr>\n
      4<\/td>\nEuropean foreword <\/td>\n<\/tr>\n
      6<\/td>\nForeword <\/td>\n<\/tr>\n
      7<\/td>\n1 Scope
      2 Normative references
      3 Terms and definitions <\/td>\n<\/tr>\n
      8<\/td>\n4 Principle
      5 General test conditions and requirements <\/td>\n<\/tr>\n
      9<\/td>\n6 Assessors
      6.1 Qualification
      6.2 Number of assessors <\/td>\n<\/tr>\n
      10<\/td>\n7 Procedure
      8 Analysis and interpretation of results
      8.1 When testing for a difference <\/td>\n<\/tr>\n
      11<\/td>\n8.2 When testing for similarity
      9 Test report
      10 Precision and bias <\/td>\n<\/tr>\n
      13<\/td>\nAnnex A (normative) Tables <\/td>\n<\/tr>\n
      18<\/td>\nAnnex B (informative) Examples <\/td>\n<\/tr>\n
      23<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

      Sensory analysis. Methodology. Triangle test<\/b><\/p>\n\n\n\n\n
      Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
      BSI<\/b><\/a><\/td>\n2021<\/td>\n24<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":371930,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-371922","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/371922","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/371930"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=371922"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=371922"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=371922"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}