ASTM_E_2082_-_12.pdf

Designation:E208212Standard Guide forDescriptive Analysis of Shampoo Performance1This standard is issued under the fixed designation E2082;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 The objective of this guide is to provide procedureswhich may be used in the design,execution,and analysis ofstudies to quantitatively assess the objective sensory attributesof shampoos.This is one of many appropriate techniques usedin the hair-care industry.These attributes can then be used todefine performance of shampoos and to provide direction inproduct formulation,research guidance testing,and claimsubstantiation.This guide includes the sensory propertiesinvolved in dispensing a product,as well as the attributespertinent to shampooing swatches,half and whole heads.Although this guide is specific to shampoos,the proceduresshould be applicable to most hair-care products.1.2 Guidelinesareprovidedforthedefinitionofterminology,procedures for manipulation of products,identification/selection of hair type,and assessor training.References for rating scales are not provided in this guide.Theuser should be aware that some sensory practices may requirethe use of attribute references(anchors)when training theassessors.2.Referenced Documents2.1 ASTM Standards:2E253 Terminology Relating to Sensory Evaluation of Mate-rials and Products2.2 ASTM Publications:3ASTM Manual 13 Descriptive Analysis Testing for SensoryEvaluationASTM Manual 26 Sensory Testing Methods:Second EditionASTM Manual 30 Relating Consumer,Descriptive,andLaboratory Data to Better Understand Consumer Re-sponsesASTM STP 758 Guidelines for the Selection and Training ofSensory Panel Members2.3 Code of Federal Regulations:421 CFR 50.25 Protection of Human SubjectsElements ofInformed Consent3.Terminology3.1 DefinitionsDefinitions of terms other than those givenas follows appear in Terminology E253.3.2 Definitions:3.2.1 cosmetologista licensed,trained professional whohas been certified by state or government agencies to applyhair-care products to human heads.These individuals may bealternately described as beauticians,stylists,hairdressers,orcosmetologists.3.2.2 subjectsthose individuals recruited to participate ina study for the quality or condition of their hair,to serve assample carriers.3.2.3 trained panela group of assessors who have beenformally trained to evaluate the visual and tactile properties ofshampoo or hair,using a standard descriptive analysis methodwhich quantifies attributes on a rating scale over a set timeperiod.The number may vary depending on the complexity ofthe test and the skill of the assessor.4.Equipment4.1 The following equipment may be used during theevaluation process:4.1.1 General:4.1.1.1 Light SourceA consistent light source is recom-mended for use during evaluation of shine or luster.It isimportant to control the amount of light as well as the angleand distance from the hair.4.1.1.2 Water SourceTemperature and hardness should beconsistent.If controlled temperature sinks are used,theyshould all have the same,consistent flow rate.4.1.1.3 Blow DryerSpecifications should be documented(that is,wattage,voltage,power level,air velocity,andtemperature).4.1.1.4 Syringes/Pipettes,Petri Dishes.1This guide is under the jurisdiction of ASTM Committee E18 on SensoryEvaluation and is the direct responsibility of Subcommittee E18.07 on PersonalCare and Household Evaluation.Current edition approved Oct.15,2012.Published December 2012.Originallyapproved in 2000.Last previous edition approved in 2006 as E2082 06.DOI:10.1520/E2082-12.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from ASTM International Headquarters,100 Barr Harbor Drive,POBox C700,West Conshohocken,PA 19428-29594Available from U.S.Government Printing Office Superintendent of Documents,732 N.Capitol St.,NW,Mail Stop:SDE,Washington,DC 20401.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.1.1.5 Towels(cloth or paper,or both).4.1.1.6 CombsIt is recommended that all combs be iden-tical in material and construction(that is,tooth length,thickness,and distance between teeth).They should be appro-priately cleaned before each use.For evaluations on subjectheads,combs must be sanitized properly prior to use with eachtest subject.4.1.1.7 Thermometer.4.1.1.8 Hygrometer.4.1.2 Additional Equipment for Evaluation on Swatches:4.1.2.1 Hair Swatches(see Section 8 for preparation proce-dure).4.1.3 Additional Equipment for Evaluation on Subjects(Salon Setting):4.1.3.1 All-Purpose Styling Chair.4.1.3.2 Cape