Historical
DIN EN ISO 4120:2007
Sensory analysis - Methodology - Triangle test (ISO 4120:2004); German version EN ISO 4120:2007
The 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.
Deutsches Institut für Normung [din]