D3574–08
FIG.X6.1HysteresisLoss
SUMMARYOFCHANGES
CommitteeD20hasidenti?edthelocationofselectedchangestothisstandardsincethelastissue
(D3574-05)thatmayimpacttheuseofthisstandard.(July1,2008)
(1)Rewordedthicknessmeasurement(4.5N)inIRGLtesttofoamthicknessesfrom170Pato800Pabasedonworkdone
re?ectno60seconddwell.byWoodbridgeFoamCorporationin2006.
(2)Speci?edcorematerialasthedefaultfortheCFDtestfor(6)ChangedAirFlowtesttoonlyinthefoamrisedirection.
moldedfoams.(7)Addedstrongerlanguagefortheusefulnessofusing
(3)AddedPrecisionandBiasforStaticFatigue,RollerShearFrazierair?owinsteadoftheD3574air?owtest,including
FatigueandRecoveryTimetests.therelationshipbetweenthetwo.
(4)ChangeddesignationsforTestsJ,K,Lto“Agings”and(8)AddedareferencetoD3576forcellsizemeasurements
clari?edconditioningsections.alongwithacellsizede?nition.
(5)Changedpresserfootforcerequirementsformeasuring(9)UpdatedalloftheISOequivalencystatements.
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