DSF/prEN ISO 4120 ( Forslag )

Sensorisk analyse – Metodologi – Triangelprøvning


Status:
Forslag
Type:
Standard
Sprog:
Engelsk

Beskrivelse

This International Standard describes 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.
The method is statistically more efficient than the duo-trio test (described in ISO 10399), but has
limited use with products that exhibit strong carryover and/or lingering flavours.
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 fairly homogeneous.
The method is effective for
a) determining that
– either a perceptible difference results (triangle testing for difference), or
– a perceptible difference does not result (triangle testing for similarity) when, for example, a change
is made in ingredients, processing, packaging, handling or storage;
b) or for selecting, training and monitoring assessors.


Antal sider: 22

Internationale relationer : prEN ISO 4120 IDT ISO/DIS 4120 IDT

ICS: 67.240 - Sensorisk analyse

Varenummer: M341678


Udvalg og komiteer

Komite

  • CEN/SS C01
  • ISO/TC 34/SC 12
  • ISO/TC 34/SC 12
  • ISO/TC 34/SC 12

Dansk udvalg

DS/S-378