Document E4eKwxjz7dNydn3VEzNwxzb4

C3HJ) E. I -- Pont oe Nemolhs & Conipan^ ,* .V'NQTON. DELA A/ARE '9898 I PLAINTIFF'S I EXHIBIT DUP-1305 CCi c. 1. Marsh J. w. rwart --r JUns 13. 1974 L. C. SCHALLER EMPLOYES RELATIONS DEPT. NEMOURS 12452 STANDARDS SECTION - S*T PROTECTION SUBCQMtXTTES - SAT Unfortunataly I will not ba abla to attand tha juna 25 maetingr hovavar, hara aza ay thought* on S4T. A wa diacuaaad racantly, I'm firmly coarlncad that *oaa raviaion* to MT war* not thoroughly raaaarchad and that aaraa additional changaa ara in ordar. On tha farmor, wa havai * Znaartad a formula in 7.3.5 that is luitabla for uaa with tha mieroacopa uaad at Marshall Laboratory but not nacaaaarily at othar labaratorias whara samplas ara baing raad. * Dilutad tha aaatant of 4.5 away from Padaral Ragulationa without pointing out that wa hava don* so. IB many inatancaa wa point out "mare raatrietiva than OSSA", and tha ism should happan with laaa restrictive. Aa for additional changaa, wa should eonsidar taking sampling tachniquas out of tha Standard and rofar avaryona to Eaakall for thair initial contact. Thia will allminata tha layman's judging fraguancy and duration of aaapling and slaLilar decisions which moat of ua ara ill-equipped to aaka. It baemn* cryatal elaar that attandaaa at tha racant "Dust Conference" rangad from 0 to 100 in cempatanca to maka thasa judgmanta. I diacuaaad this principla with Jim Morgan, and ha agraad with tha idaa. Who has tim* to prapara tha procadura ^t Baakall la, of coursa, anothar story. wa probably should gat tha sansa of tha cammittaa on tha ovarall approach before I attsmpt to draft spacific rsviaiona. CONSTRUCTION DIVISION *094 E_____ Division safaty consultant 0(J* 0903454 J 088 40 DU 024835