5.1 The approaches to the evaluation of toothpaste recommended in this guide can be used to assess the sensory characteristics of toothpaste when dispensed, in use, and after use. This guide is meant to address the evaluation of a standalone toothpaste product and does not address packaging, product/package interaction, dispensing, appearance, or overall effect or benefit of the product. The procedures outlined in this guide are to be used by assessors that have been specifically screened for sensory and descriptive ability and have been trained in the evaluation of toothpaste. The procedures described in this guide can be used to guide product development within a manufacturer and can be used to communicate information regarding the product to the consumer through the media or on product packaging.

5.2 Additionally, language and ideas from two additional ASTM sensory guides (Guides E1490 and E2082) as well as the Lexicon for Sensory Evaluation: Aroma, Flavor, Texture, and Appearance (DS72)4 are used throughout this guide.

1.1 This guide provides guidelines for the selection and training of expert assessors for the sensory evaluation of toothpaste. Sensory evaluation of toothpaste can be used to define the sensory attributes of toothpaste and then to measure these attributes quantitatively for the purposes of new product development, product optimization, competitive benchmarking, and claims substantiation.

1.2 A general framework for toothpaste descriptive analysis is provided to guide the reader in the design and execution (including sample preparation and presentation, facility and testing environment, and specific evaluation protocol) of toothpaste descriptive analysis evaluations.

1.3 This guide provides suggested protocols and approaches to the evaluation of toothpaste (dentifrice) and in no way excludes any alternate approaches that may be effective in providing such perceptual evaluations.

1.4 This guide does not address other oral care products including, but not limited to, whitening agents, oral rinses, mouthwashes, toothbrushes, dental flosses, denture adhesive, floss picks, or other oral care products.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.