Document wXxOeNezbnER6edvv2nJ2QQ3

JJ March 3r d , l^ Iil Dr* P. A. lieal Ration al I n st it u t e o f Heal til W ashington, D. C* Dear Dootor ifaalj X send you h erew ith two copie a o f th e code o f in st r u c t io n s which Dr* Machia and I regard a s e sse n t ial in p r in cip le to take care of the presen t situ ation * A few comments on th ese in st r u ct io n s ar e in d icat e d . With r e sp e ct t o th e m an ufacturin g p r o ce ss, wo have b o ile d down th paragraph s t o h at would seca t o be th e minimum requ irem en ts, leavin g out sp e c iflo r efer en ce to types of equipment a c t u a lly in u se* Heforan ee to th e la r g e r memorandum w ill exp lain th e background o f th ese to a con siderable exten t. Tran spor tation and st or age have been given sh or t sh r i ft becau se o f th e d iffic u lt y of d ealin g ad equ ately with them a t t h is tim e, because a lso I t may be hoped th at th e experien ce o f t h e fe d e r a l agen cies mentioned h ere i s such t h at th ey w ill tak e prompt in t e r e st in the m at t er , and becau se the problem a t th e moment i s n ot gr e at and may n ot develop in t o an yth in g o f im portan ce. W have cod ified our experien ce In th ese m atters in t o a Safet y Manual, a copy o f which w ill be fu r n ish ed t o you fo r your In form ation a t an e ar ly d at e . Obviously we sh a ll be ready to give every a ssist a n c e in th ese m atters a t any time i t i s r e q u ir ed . Mixing op er at ion s have been d e alt w ith in accordan ce w ith the proposed r e gu lat io n s o f the Ser v ice In 1926, a s supplemented by th e p r in c ip le s which have guided u s fo r many y e ar s. They ar e b r ie f bu t sound in p r in c ip le . Objection may be made to the ph rase "except under con d it ion s which must be d efin ed in d e t a i l ", which la employed in two p la c e s. T h is, or something sim ila r , i s n ecessar y , however, In view o f th e fa c t t h at improvements in procedure have been made from time t o tim e, and w ill be in the fu t u r e . For example, th ere i s a bulk typo o f m ixin g p lan t t h at was design ed sp e c ific a lly fo r gr e at e r sa fe t y in h an dlin g lar ge volumes o f Flu id sh ipped by tan k car , or In a few in st an ce s, sh ipped in drtana and promptly emptied KE 0 0 0 9 2 7 5