AS 2542.1.1:2014 pdf free

AS 2542.1.1:2014 pdf free.Sensory analysis Part 1.1: Methodology – General guidance
Sensory assessment may be made by three types of assessor:“assessors”,“selected assessors” or“expert assessors’ . Assessors can be “naive assessors” who do not have to meet a precise criterion of selection or training, or people who have already taken part in some sensory tests (initiated assessor). Selected assessors are assessors who have been selected and trained for the particular sensory test. Expert assessors are assessors who have been selected and trained for a variety of sensory analysis methods and who demonstrate particular acuity in panel work.
NOTE Assessors employed by companies to undertake sensory analysis as their primary job function are examples of expert assessors.
The selection and training methods to be employed depend on the tasks and methods that it is intended to give to the selected assessors. Procedures for training assessors for descriptive tests are different from those for training assessors in discrimination tests.
Detailed procedures and methods for selection and training of assessors are given in ISO 8586-1. It should be noted that these methods sometimes only constitute a way of choosing the better candidates amongst those who are available, rather than to satisfy predetermined criteria. Also, the selection of assessors for their ability to discriminate and describe foods is quite different from that used for preference tests. The former tasks require selection and training, whereas the latter require only that the panel be representative of a specified sector of the population, for example, a group of consumers.
Containers should be chosen so as not to affect the test or the product. These may include washable ceramic or glass containers, or disposable plastic or paper containers, but must not transfer chemical materials that could result in taint. In particular, washable containers should be washed only in odour- and taint-free detergents and rinsed in water, and polymeric and paper containers, including insulated containers used for hot or cold samples, should be odour- and taint-free.AS 2542.1.1 pdf free download.