Sensory analysis. Methodology. Duo-trio test1 Scope 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. The method is statistically less efficient than the triangle test (described in ISO 4120) but is easier to perform by the assessors. The method is

BS 6579-7 walks you through the components

which also forms the basis for the performance classification

FIS and FFFIS

Relation to the GPS matrix model

2 Effects of ageing factors

This part of IEC 60947 covers low-voltage arc quenching devices

BS EN 60843-2 discusses track configuration and dimensions

Powered toothbrushes manufacturers and suppliers

water tightness test

It can be used to control a wide variety of disc

3 of this Technical Report relates to Clause 3 in ISO 9001:2008

and usability for heat resisting nickel base alloy bars