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lro! €ach aanple vaE veigheat on Ebadov glaph and pl,aceil
in btcroD.iro cha&be!. Ttle 6aDp1E cas coDp!6s6ed by
lrl,unqs .na! 11! cullent ua6 .11ousd to irass at th€
pr6.sur€ of ao-60 pounds p6! Equars lnch, the A[ouht of
alr flo, va€ lndi€tgd by the p@itlo! o! the nlIoati ln
tha vertl,cle tub6 couecte.t to tbe coDpr€aaion chabb€r,
ainenesE sas !€ad dheclty on the scale in llcrogres par
tlBtl atRatc.IE (oooPlal)
Ttto !1bra stlength t.sts have b.eb carrted out
or P!e66l,ey llat Bundl€ st!€ngth T6ate! at 26!0 gauge
16ngth, ro! thts, a gloup o! flb!6s va6:!!anqed j,h
lErallsl posiu.oD j,r ribbon f!oD, ritb th€ b€lp o! coa!6€
.nd flna corb. thiE aual,l, libbon of fibra ,as carefully
Drlc.d In claDplnq Jar6 Dounted oh th. vic. rith the h.1F
ot tolqu. ,!€nch and th€n clahp6 v6re scrgved tightly.
th€n th€ ldalnlDg portion of the flble llbbon on each
sld6 of th€ jarE ea6 careful,ly cut rltb tha help of blunt
kinle. I1lo lico ta6 then prac€d ln the ple6sfoy t6ster
and push.d 611Eht1t !psa!d. th6 ,€lqht lrn on th6 sca1.
rod of Pr€ssl€y tester. anil then it .topp6d dnhing du6
to bleak.ge ol !ibr. ribbon rithiD tb€,rara of cl.up€. At
leaat thraa readlngs uele recordad. lb€ bloken tlbbon ua6
ta,(€n out of the vlc. v€ly car€tully ,ith the h€lp o!