Document Rp1Ge1MM9Oa0dQaK6baJXZwbz
KXN'JTES uF ThZ A-wISTJG TLhTTi.1 I'. bTIT*J7E air h~*3iE a;z fjJTjy.-rvjF.im row tttde;
Sopte-.ber 5, 1957
IH ATTDClAliCEt
'/. C. Atkinron - Jjhr.s-har.Tillo Corp, John Corney - Tallr.an HuClusney Fabric* Co, H, 1.. t>ac.sc>*i Jij Co* y. A, L, liay Koasbey 6 Kattisor. Cc.
R, I., Smith - Reybestos-renhattcn, Inc,
1, Considarabla discussion was given to the very interesting report from Turnarlleuell, "Estivation cf the Itst Hererd jn the Factory Using the QrsenburgSjvlth Impinger". Numerous differences in the Thermal precipitator and Oreenburg-Smith lapingor techniques result in the evaluation of different portions of the airborne contaminants. Research in comparative collection efficiencies of various sailing techniques has indicated that there is no positive corre lation between the Thermal precipitator and the Oreanburg-Soith laipinger. Since the Oreenburg-Smlth, or midget imning-r, le the reeegsited lastrace!
of both Federal and State health agencies, it is incuibent on us to evaluate our voile environment by the methods proscribed by the U, S. Public health
Service, upon which our health atrndrrda are besed.
The comparison of dust levels between the English end U, S, plants, as e
sans of evaluating control efficiencies, is most interesting, however, and this Ccndttee hopes that future work may be done. It is suggested, since the techniques ere efficient in different particle else rrnges, that compari son be made of those particle aiaos ^coraion to both instruments.
One member company reports that recent average counts by the Greenburg-Scith Impingor taken at positions camnarable (Insofar as possible) to those de scribed in the Turner-*;swell report we.u_I.lie,*..:
Feeding card End cards
30 - 90 3.2 - 12.0
2. It -es reported that the epidemiological rtudy by the Indue`rial Hygiene Foundation, sponsored by the Q, A. II. A., is in the final stages. Ths report probably will be submitted prior to our next resting. Request will be made to the Q. A, n. A, For copy of the "sport for perusal and discussion by our
Committee*
. Hr, R. B, Smith reported a aerlos of dust counts from the Charleston plant Indicated the affeetiveneaa of a program of system maintenance. Regular, frequent chad: of air velocities and pressures, constant and consistent tightening of the systma (leak repairs, valve adjustment, ate.), redesigning
and re-aligmant of the aystmn and hoods to get proper balance predicated on adequate capacity, has resulted in consistently low levels of airborne dust
Card roam Weave room Twitting
Spinning
,20 to 2.12 m.p.p.c.f, .28 to 1.63 " .33 to I.I16 "
,16 to 2.80 "
2$ samples 12
6* 18 "
Klnutse of Air liyclen* u nfp. Comlttas
Page 2
In comparison to ths health thr*.hold llr.i. ^.f S.O K.p.p.c.f,, thsss levels are vviueni-e of axcc.Iler.1 control.
Tha subject of vecu'xi cleaning of nachlnea and work areas, ths application of fixed and portable system* was reviewed. Two members will report on their experience and development* at the next meeting.
It was agreed that the agenda for tha next meeting would Include
a. Vacuum cleaning for dust control b. Q. A. H, A. epidemiological etudy c. Respirator* - standards and application* d. Dust control in fibre preparation roots* a. Review of considerations of tha Fibre 8valuation Coanittaa.
Tha Condtta* ^pressed its appreciation of the leadership of Mr. D. R. Holmes, Asten Hill Mfg. Co,, aa Chairman of tit* Air Hyglsna and Hsrmfacturlng Ccoaittea and Its ~TM:* tha necessity for his withdrawal from this aotlvitgr*
It was tha unanimous recommendation of the Ccnittae that Kr. A. E. Hay be designated Chairman by the Board of Governors for the 1957"58 tan of offlea.
Respectfully submitted. H. M. Jackson, Acting Chairman