Document r5q00X1XXQ67Z950erQ6g14V

SAF E TY COM M ITTEE o .B .Le w is CHAIRMAN Et hyl Gasol ine Corporat ion GmtYSLER Bu il d in g 405 Le x i n g t o n Av e n u e Ne w Yo r k March 9, 1933 D r . 17. F . M a ch le Ke t t e r in g Lab or a tor y of Ap p lied P h ysio lo gy C o lle g e o f M e d ic in e . 'lie n Aven u e Ci n c i n n a t i , Oh i o . Dear Dr. Machle: F o r yo u r f u r t h e r informs, t i on i n c o n n e c t i o n w i t h t h e t e s t s yo u h a ve "been c o n d u c t in g on a i r l i n e h o s e s , we a r e q u o t in g t h e f o l l o w i n g l e t t e r r e c e iv e d from h r . Ba ld w in : "Mr. Myers o f A t l a n t i c R e fin in g C o ., P h i la d e lp h ia r e p o r t s t h a t s e v e r a l ' e a r s a g o the;/ had. con s i d e r a i l s t r o u b le w it h a i r l i n e h o s e b e co m in g soaked, w it h .ga s o lin e so t h a t the w e a r e r o f th e m ask g o t g a s o li n e fum es lo n g b e fo r e th h ose a p p ea r ed to be worn ou t. They d id q u it e a lo t o f exp e r im e n t in g b e fo r e t h e y foun d the t r o u b le . "Th ese h ose a r e a s you p r o b &b ly know t r e a t e d w it h an im p r e gn a t in g ma t e r i a l t o make them o i l r e s i s t a n t . Th ey fo u n d t h a t t h i s m a t e r i a l i s 39u s u a l l y 5675 d e n a t u r e d a l c o h o l , h gum ( k i n d u n kn own ) a n d p p la m p b l a c k . '.Then t h i s h o s e i s u s e d i n a t a n k w h e r e n a p h t h a a n d c e r t a i n o t h e r m a t e r i a l s a r e t r e a t e d w ith c a u s t ic soda r e s u lt in g in what th ey c a ll 'Bla ck Strap ' in the bottom of the tank th at the ca u stic soda a tta ck s the de n a t u r e ! a l c o h o l an d r em oves i t fr o m t h e h o s e . Th is l e a v e s t h e gum b r i t t le wh ich cr a cks and p er m its ga so lin e to be absorbed by the h ose. "Th e ir method d evelop ed to else th at has been used in o n ly h a lf a d a y when i t is in a s o lu t io n o f the above m a t e r ia l is u s u a lly enough overcom e t h is is n o t u se a h ose an y n la c e t h is type of o p e r a t io n . A hose is u sed h ere renewed and the o ld h ose clea n ed an d d ip p ed im p regn atin g m a t e r ia l. F ive ga llo n s o f t h is t o t r e a t UO l e n g t h s o f h o s e . "In view of t h is i t m igh t be d e s ir a b le to lim it the use of an a ir h ose to b e u sed in c le a n in g leaded g a s o lin e tan ks to t h a t one u se At le a s t t h is in fo r m a t i on may g ive Dr. Machle a le a s in a t t a c k in g em blem . " lin e on ly. the T h i s r e p o r t a p p e a r s t o o f f e r a. l o g i c s ! e x p l a n a t i o n a s t o t h e va r yin g l i f e o f h oses u sed un der s im ila r co n d itio n s in tan ks bu t co n t a in ir.g d iffe r e n t p r o d u ct s. Very t r u ly you rs,