ASTM_F_2668_-_07_2011.pdf

Designation:F266807(Reapproved 2011)Standard Practice forDetermining the Physiological Responses of the Wearer toProtective Clothing Ensembles1This standard is issued under the fixed designation F2668;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.INTRODUCTIONProtective clothing ensembles such as firefighter turnout gear,HAZMAT suits,and bomb suits mayimpose a physiological strain on the wearer.This strain can take the form of heat stress andcardiovascular and respiratory strain,which can result in injury to the wearer.This practice providesinformation on the measurement of the physiological responses of a wearer to a protective clothingensemble.The protocol is designed to allow comparisons of the physiological responses of subjectswearing different protective clothing ensembles of the same type(for example,firefighter turnout gear)and from different types(for example,firefighter ensemble vs.HAZMAT suit).1.Scope1.1 This practice specifies the test equipment and proce-dures for determining the physiological responses of subjectswearing a protective clothing ensemble.1.2 This practice covers the physiological measurement ofinternal body core temperature,skin temperature,exposuretime,heart rate response,oxygen consumption,and wholebody sweat rate,to assess the physiological responses ofsubjects wearing a protective clothing ensemble.This practicedoes not measure the musculoskeletal strain on the participantimposed by the protective clothing ensemble.1.2.1 To increase safety during physiological testing,thisdynamic test requires the use of human participants who meetspecific health and physical fitness requirements.1.3 The present standard does not attempt to determineimportant clothing characteristics,such as thermal insulationand evaporative resistance of the protective clothing ensemble.Test Methods F1291 and F2370 can be used for these clothingmeasurements.1.4 The values stated in this practice shall be SI units.1.5 It is the responsibility of the test laboratory to obtain thenecessary and appropriate approval(s)required by their insti-tution for conducting tests using human participants.1.6 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user,and the testing institution,to consultand establish appropriate safety and health practices anddetermine the applicability of regulatory limitations prior touse of this standard.2.Referenced Documents2.1 ASTM Standards:2F1291 Test Method for Measuring the Thermal Insulation ofClothing Using a Heated ManikinF1494 Terminology Relating to Protective ClothingF2300 Test Method for Measuring the Performance of Per-sonal Cooling Systems Using Physiological TestingF2370 Test Method for Measuring the Evaporative Resis-tance of Clothing Using a Sweating Manikin2.2Other Standards:3ISO 8996 ErgonomicsDetermination of Metabolic HeatProductionISO 9886 ErgonomicsEvaluation of Thermal Strain byPhysiological MeasurementsThe Commission for Thermal Physiology of the Interna-tional Union of Physiological Sciences(IUPS ThermalCommission)Glossary of Terms for Thermal Physiol-ogy43.Terminology3.1 Definitions:1This practice is under the jurisdiction of ASTM Committee F23 on PersonalProtective Clothing and Equipment and is the direct responsibility of SubcommitteeF23.60 on Human Factors.Current edition approved Dec.1,2011.Published March 2012.Originallyapproved in 2007.Last previous edition approved in 2007 as F2668-07.DOI:10.1520/F2668-07R11.2For 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 American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.4The Japanese Journal of Physiology,Vol.51,No.2,2001.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.1 acclimation,nphysiological adaptations occurringwithin an organism,which reduce the strain or enhanceendurance of strain,caused by artificially or experimentallyinduced stressful changes in particular environmental condi-tions.3.1.1.1 DiscussionAcclimation describes the adaptivechanges that occur within an organism in response to artifi-cially induced changes in particular climatic factors such asambient temperature and humidity in a controlled environment.3.1.2 acclimatization,nphysiological adaptations occur-ring within an organism,which reduce the strain or enhanceendurance of strain,caused by stressful changes in the naturalenvironment.3.1.3 clothing ensemble,na group of garments worntogether on the body at the sam