I n tern ati o n al I N TE RN ATI O N AL O R G AN I ZATI ON FOR S TAN D AR D I ZATI O N M E I K~ YH AP O ~ H AR C ro ss- co u n try d e fl e cti o n S ki s de Fi rst Cs - U DC - fon d ed i ti o n s ki s at D eterm i n ati on de 85- 08-01 685 62 : 62 74 : spo rts eq u i pm en t, Ia S ki s , wi th Ch arg e O P l - AH M AL&l R fl C TAH ~ AP TM ALWl OR G AN I S ATl O N D eterm i n ati o n - break - D e scri pto rs S tan d ard de ru ptu re of q u asi stati c et de Ia d h form ati on I N TE R N ATI ON ALE breaki n g co u n try S ki s , te sts, d ete rm i n ati on , l o ad N O R M ALI S ATI O N an d l o ad a Ia ru ptu re sou s Ch arg e Ref cro ss DE breaki n g l o ad , test q u asi - stati q u e N o I SO 7797-1 85 (E ) eq u i pm en t P ri ce based on pag es Foreword I SO ( th e n ati o n al I n te rn ati o n al S tan d ard s S tan d ard s bo d y th e is m en tal D raft to an d m e m be r th e I SO 75 an d in carri e d a s u bj e ct ou t fo r fo r Th e y ap pro val by S tan d ard re crea ti o n al th e I SO l i s o n ap p ro ve d 7797 for wi th by b e fo re m em ber I SO co m m i ttee ad o pte d eq u i pm en Org an kati on S wi tze rl an d in bod i es) a te ch n i cal th at app ro val are S tan d ard i z ati o n ) th ro u g h wh i ch on S tan d ard s bo d i e s fo r m em ber n o n - g o ve rn m e n tal , I n tern ati on al P ri n ted (I SO re p re s e n te d C o u n ci l % I n te rn ati o n al S po rts be in I n te rn ati o n al th e l e as t n o rm al l y i n te re s te d ri g h t O rg an i z ati o n bod i es in is a wo rl d wi d e wo rk te ch n i cal of h as I n te rn ati o n al I S O, al s o te ch n i cal acce p tan ce wi th fe d e rati o n p re p ari n g co m m i tte es co m m i tte e acco rd an ce bod i es was th e th e i r Th e take p art in th e are I n te rn ati o n al I SO m em ber e s tabl i s h e d o rg an i z ati o n s , co m m i ttee s as E s ch been of I n te rn ati o n al h as g o ve rn - wo rk ci rcu l ate d to S tan d ard s by pro ce d u re s re q u i ri n g C o m m i ttee I S O/TC at vo ti n g pre pare d by Te ch n i cal t Stan d ard kati on , 985 83, I N TE RN ATI ON AL C ro ss- co u n try Scope at an d - s ki s d e fl e cti o n I SO S TAN D ARD fi el d break of D eterm i n ati o n wi th of q u asi stati c bre aki n g l o ad C au s e s fai l u re Th i s I n te rn ati o n al ti o n of th e bre aki n g A l o ad S tan d ard re s i s tan ce wh e n d e fi n e d q u asi s tati cal l y ap pl i e d d e fo rm ati o n of s pe ci fi e s to a s ki fo l l o we d a m e th o d P arts of fo r d e te rm i n a- C ro s s - co u n try s ki s to wh e n two d i s tri bu ti o n , bre aki n g on th e appl i cati o n pl i cati o n s d e m an d l e ad s su d d en to a pre d o m i n an tl y b re ak s tre n g th s tre n g th , bu t fo r wh i ch vari ati o n s Th e el asti c Opti m u m Test an d d e fl e cti o n at b re ak tan s tre n g th th e fro m l ow an d wi th s tan d l arg e C o n s e q u e n tl y, bre aki n g ski s ti ff i s d esi g n ed s ki s d e fl e cti o n C h aracte r of d e fl e cti o n s , th e d e fl e cti o n th e 500 te s t Th i s is te s t an d wi th Th es e high at b re ak, to s o ft m ati o n of ( fo r te s t bu t val u e s can n o t of be h ave th e a re l ati ve l y b re aki n g d i re ct! y arran g e m e n t m ach i n e , to of th e te s t app aratu s is s h o wn in u s u al l y a te n s i l e te s te r wi th s pe ci al ben d i n g co m pri s e a) two s u p po rts , d i re cti o n , th e a to al l si zes of C ro s s - co u n try ski s at l e as t wi th on e ad j u s tab l e of wh i ch d i s tan ce s h al l in be a l o w l o n g i tu d i n al fri cti o n ro l l e r; l o ad cel l ski s h al l not s tru ctu re s be wi th u sed fo r d e te rm i n ati o n re l ati ve l y high pl asti c e xam pl e s ki s wi th s te e l ed g es or of h avi n g l o ad s a FB ran g e an d of at l e as t 000 N fo r Fs ; fo r c) a of th e d i s pl ace m e n t d e fl e cti o n m e as u re m e n t fsI g au g e fo r m e as u re m e n t ; of a ram pl ate as s h o wn in fi g u re 2, wh i ch s h al l co n s i s t of d e fo r- s ki s s te e l pl ate , mm th i ck, an d a h ard ru b b e r l aye r, mm wi th an d h avi n g a S h o re A h ard n e s s of 95 + (sec s ki n s ) I SO e) Referen ces I SO 868, D eterm i n ati on - of i n d en ta ti on h ard n ess a l o ad - d i s pl ace m e n t d u ro m eter ( Sh o re cu rve on re co rd e r fo r re co rd i n g of th e l o ad - g raph - p ap e r b y a 868) ; d e fl e cti o n P l as ti cs of l ow s tre n g th re l ate d s h al l th i ck m e &s in e tc ) be twe e n s ki s a al u m i n i u m m i d way ap - d) l o ad d e s cri be d wh i ch bre aki n g ch i l d re n p ro ce d u re bre aki n g as Poi n t Lo ad bu ckl i n g , ski appl i cabl e j u n i o rs appl i cati o n ap art FB2 : d e l am i n ati o n , m e as u re m e n t Th e l o ad mm ce n tre p art, apparatu s g e n e ral b) ad u l ts , th e th e ( b re aki n g , d e- fi xtu re , wh i ch s ki s ti ff- Th e re l ati ve l y of th e at s u pp o rts fi g u re pen d of appl i e d Th e n ess an d l o ad e d u s u al l y by a l o ad (E I l o ad 3 appl i cati on breaki n g 779 7-1 985 D eterm i n ati on of th e l o ad appl i cati o n h ard n ess) P oi n ts I SO 72 4, m ou n ti n g C ro ss- cou n try area for toe S ki s Cl i p - D i m e n si o n s of th e bi n d i n g bi n d i n g s Lo ad FB l D efi n i ti o n s an d Th e on Fo r th e pu rp o s e d e fi n i ti o n s of appl y th i s I n te rn ati o n al S tan d ard , th e fo l l o wi n g : a wh e n bre aki n g C au s e s fai l u re wh e n two l o ad of ap pl i e d th e at s u pp o rts th e 200 of s ki th e l o ad mm ski ( b re aki n g , fo re bo d y, appl i cati o n apart as FB : d e l am i n ati o n , Poi n t d e s cri be d in Lo ad wh i ch bu ckl i n g , m i d way e tc ) to ti o n bre aki n g as wh i ch o ccu rs a re s u l t fai l u re of d e fl e cti o n of th e th e ski of th e appl i cati o n ( b re aki n g , s ki of d e l am i n ati o n , mm th e i t Poi n t Th i s be is is d e te rm i n ati o n be h i n d i n te rs e cts i n s e rte d pre s s e d l o ad th e 75 mm g au g e g au g e s ki fo r s h al l fe e l e r fe e l e r wi th fl atte n Lo ad bre aki n g d e te rm i n ati o n of on fro m a fl at l o cate d 80 th e th e s u rface mm th e of FBI an d & re fe re n ce ru n n i n g fro n t si d e of by a s u ffi ci e n t be h i n d th e line s u rface , th e l o ad m o u n ti n g be twe e n fo re bo d y, & th e fo r P o i n t Of fo re bo d y th e sh o ve l , appl i cati o n ski wh e re Poi n t fB l o ad th e appl i cati o n : appl i cati o n Poi n t fo r th e d e te rm i n ati o n FB2 D e fl e c- l o ad bu ckl i n g , FBI at e tc ) Th e (80 ding l o ad rt to ) appl i cati o n mm I SO Poi n t re arward 7264 (sec fo r fro m fi g u re d e te rm i n ati o n th e bi n d i n g of m o u n ti n g FB2 is Poi n t l o cate d acco r- 3) I SO 779 74985 (E I R e co rd Con d i ti o n i n g th e l o ad - d e fl e cti o n d i s pl ace m e n t Th e te s t s h al l te m pe ratu re be of (23 carri e d + 5) ou t O C an d on ( - s ki s co n d i ti o n e d $r ) O C fo r at to l e as t Test E val u ati on Th e b re aki n g ave rag e pro ced u re D e te rm i n ati o n of FBl th e d i s tan ce th e ski 200 d e fl e cti o n R e co rd th e d i s pl ace m e n t Fi x th e mm) by s u pp o rts Lo ad 25 th e ski 500 d e fl e cti o n th e th e l o ad - l o ad s val u e s pai rs ) FBj an d re co rd e d wi th FB an d on S tan d ard C h art th e (see d e fl e cti o n fi g u re 4) fs I fro m are si x th e S ki s d e vi ati o n as ski at s h o wn a rate in fi g u re s u ffi ci en t Test repo rt ( s u p p o rt to i n cre as e Th e te s t re po rt sh al l i n cl u d e th e fo l l o wi n g i n fo rm ati o n : m m /m i n l o ad - d e fl e cti o n val u e s by m e an s of th e l o ad - a) re fe re n ce to th i s b) m an u factu re r c) re g i s trati o n d) te s t e) l o ad - d e fl e cti o n I n te rn ati o n al an d m odel S tan d ard ; d e s i g n ati o n of th e s ki ; re co rd e r D e te rm i n ati o n d i s tan ce th e on of an d fs , Fi x m e an s h ( th re e by a e ach val u e s re co rd e r on of th e mm) by FB2 s u pp o rts Lo ad 25 th e as ski at s h o wn a rate in fi g u re s u ffi ci en t to n u m ber te m pe ratu re an d n o m i n al l e n g th ; ; C h arts fo r FBI , fs I an d FBz; ( s u p p o rt f) i n cre as e an y d e vi ati o n fro m th e S tan d ard pro ce d u re wi th re as o n s m m /m i n D i m e n si o n s Load - d i spl ace m en t Fi g u re - Te st app aratu s in m i l l i m e tre s I SO 77974985 D i m e n si o n s in D i m e n si o n s i n m i l l i m e tre s (E ) m i l l i m e tre s 25 I TS tee l pl ate c h i Fi g u re - R am H ard ru bber pl ate Load appl i cati on Poi n t Bi n d i n g m ou n ti n g Poi n t I 50 ~ 25021 Fi g u re - Lo ad appl i cati o n Poi n t fo r th e d e te rm i n ati o n of FB I I I fh m ) fB Fi g u re - Typi cal l o ad - d e fl e cti o n cu rve Chis page intentionally left blank Chis page intentionally left blank Chis page intentionally left blank