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JM-1794
INSULATION HYGIENE
PROGRESS REPORTS
FROM THE INSULATION INDUSTRY HYGIENE RESEARCH PROGRAM
Ipvtof | ****. MO,
V* } ft* I
l*>0
Mixing Bag Tests Are Successful
One of the most common and al*o
one of the dustiest operations faced
!*i be an asbestos uorker--band mising of aabratot cement -can nou be cod-
>r
trolled by neu miring technique*. Teat* uere made be IIHRP person-
oel of a neu plastic tag for asbestos cement that can alo be used for en
closed miring There test* shoued
durt lesels could be reduced to 1/6
/ that of rlanditd miring methods. In
this neu bag, uhirh rat described
in a precious IV?l LOTION HY
GIENE PROGRAM REPORTS (Fall.
iit
j 1969), staler is added ditecll) into the bag and the miring it arhirred b) kneading the bag. The cement bag trial* uere held during boiler insulation uork in dent Falls, Neu York, on October
29, 1969. Bags ilh the tuo types of
srnter inlet uere considered for trial
and the most feasible one uat toted
at that time. This bag utiliied a cor*
ner entrance flap through uhirh the
bag could be fill'd using a hose.
M i. '.adL^ a
AftihoJt Compared
Aiir*4if iIm (ml *l 4in(K cmrii lip at CWm ft!U N.Y, m (rv Wh i* n*hu
f , J .Nkcsk.^ lIHUf ProfaiR CaM^taiw, C. MetaWr, JiJtai-MaaTillf FW Suprr-
*ir4rAf. B L Mwlfr*, J M C
W. AiWmm Vockrn
1'im awmLrt I O tvlliai, ) M Rr*r**rb. aa4 V A. ValWt, i-M Cwairitl Enmi*e
During the trial, comparisons uere made of mirinc techniques using a fatt-stiing, hydraulic finishing eement containing IS percent ahestos
Mt. Sinai Holds 4-Day
and nonhydraulic cement containing approsimatrly SO percent asbeutos. The hand miiing uas done in a tub
large enough to bold one bag and
Course For Scientists
dust Irrels uere mea,uied at the breathing tone of the uorler.
The (lata, summarised in the fol-
The Mount Sinai School of Medlcin* hat annourxed a loar di) post
aepretIa* a!f asbrsio* related uilh emphasis on diagnosis. tr#l.#%
ricai utility IW^ontrol
graduate course for phrsieians and and other scientists on Inc health ef-
ment aannaa >pretention.
'NE>m^T^'r <'* A
The course, directed by Dr. IntpL. I |i t r **
* f --n--
fecU of a-boloa. The full-time course, to b* |i>rn from Juno IS to 18, 1970,
J. SrlikoE. till h*wr (*rul*v ** *f( fort* i|*r(t, including Dr L. C
-t/v .
tit! include a stud) of uoil.tr; con
Wr lUmmond nd llirry ll*im*inn
lyd'otttu * <9 * nydfoulu
diiion> in ihr aibnlot induiir; a> rll at clinical aspect* ol ailnioi related disc***.
tht HMRP. Other Birlit iDanli ill jncfwdt Pfo(r*>of near Put** of Rockefeller Lni*eritv, Dr Paul
Tub
U> t cc
riititi. b*j 7S
10 f ee
44
The curriculum for the rourst utU Include a detailed anal) ia of the clin
Kotin. Dirertcf. Nation*!
rf
Environmental Heahh Scienret. and
Putt urnpln * ere collected only for ihr lout wif| time *bkh
ical findingi and industrial hygiene
fCmmn***4 * <***'
965
limitation HygUna Progreu RtporU
MIM.I
0sm tm
from d*
IseuliHss bfcitiy Hygiene ReMud Program
Edltwi W. J. NcImIm*, PU),
PHi>lii< al A* Environmental Seirans UtonUry fining J. SelikoC, Mi)- Director), Mount Steal School iIJMMm af the City UniNfiitt af Kk York, New York. kyTmm*
Adviooey Council of IIHRP
lnrte| J. Selikof, M.D. Profrun Director and Quiiau
C. Coy let Rinaond, Sc.D. Viet President, American Cancer Society. No* York. N.Y.
Akrrt Hutchinson, Central Praldnd, Inlrrnatioitat Association of Drat and Froal Insulators and Asbestos Workers, Washington, D.C
I. B. Joke. Vice President, JohnsManvillr Corporation, New York. N.Y.
Fred L Pundsock, Pk-D. Vice had* drat. Research and Development. Johnt-Manvillo Corporation, N- York, N.Y.
George W. Wright, M.D. Director ol Medical Rrsrerch, St. Lake*# Hoepitat. Cleveland, 0.
PURPOSES OF THE INSULATION
INDUSTRY HYGIENE RESEARCH PROGRAM
1, To devakip ia-pr&vtd methods tot minimizing ex posure of imslilioa workers to dusts end fumes encoun tered in their work
t To dw"iiU knowl edge of these improved methods of dust control wherever they may be ap plied advantageously and to offer cooperation, advice and assistance toward their universal adoption.
IIHRP Personnel Inspect
European Building Sites
William B. Rtiue and William J. Nicholson al Mount Sinai hare re turned from visits to comtrwctioa sites, shipyards and Uboratoeisa is Croat Britain and continental Enrepe. Invited to study work practices in Enaland by the Ashoalo*it Research Council, the IIHRP team attended their vWt to sitae in Holland, Carmany and Denmark.
Emphttia naa plecad dnrlng dw Iris an atndvlng these dust reduction adnlpn out might he adanled far use in dils coeatry. Particular em phasis eras given to England because nf the tiiijih-r rrsrtcca wsrk uf the Ashestosis 1U March Cuuncil end fee member companies and hecauM prep arations were being token prior to the inirodortioo in May, 1910, R^aIFlalugl nnV^aVannHmRMeoRl BnoM^Moemlmw Ft|WlilfMs
In England, visits were mads to the Turner Brothers and Cape Asbes tos Corporation foclo.na, NcwsT-a
Insulation, a Newcastle shipyard,
the dealer Sara Carperstio*, a
irihetor uf spray asbestos end
ramie tber insulation. In addh!
a visit to the Pneumoconiosis search Unit at Praerth, Wake
In Holland, visits were mad* to Hrrtrl Insulation In Rotterdam and the de Schelde ship) ard in Vliatingrn.
Spraying Dijtrt
One notable diRerrace observed
between practises lu lire U.S. and
Earepe wai the mtrictrd um af
spray asbe*tos. Its uar in Eurooe, and
particularly in England, was less
tenslvs than the US. and when used,
the material was applied at night or
whon other trades wtrr not working
on the sits. Moreover, in some eir-
cumetanres,dust control during spray
applications was effected by a are-
denying process that rtiuced doit
levels to 1 tSO of those measured
without predamping.
fat commenting on the usefulness
of the trip, Reilsc remarked that it
was very helpful to have eeen the
duel eoherlinn devices on power
tools, etprrlaBy hand took, as wU
us the sp#y peedamplng equipment.
"* '
evperi-
isbestoe
i Imple-
[clearly
066
Bag Testa Successful
UmUmI In each toel <74 (of tat aiiiM Sit (m ksg lahm). Tbc k*tk are bigk. Sul It aaat bn rest!end Aet wmI mlsing la apt wiikiiii yinlii iba till abttlaid mi tbc rimtiit atsliif tarfut an camparable to Am obtained by V'lKita I Raima, Dtmctoc of HHRF FMd Stadict, lor
of Comal la various IrU la Awi MM, which
atn I -i tut mitiag to small tadio ikt Urge scale mining aaed la biair iaaaialien work,
variad bon IS to 62 fibers pat m.
biHaii lujr to JiSi
VUb k b eltnr ikti a vary dust* apcraltva con St controlled, 1*0 dif ficulties of the ymiM ylirib bag wtrt eSttntd during the trial. Somt Sag damage, la tzctw of iSat etperienccd *US paper Saga, uccurred durlag ahipmrat *1 toe plastic bars. Moreover, Sag. containing 35 lo SO pounoddi of ormrol *tre difficult to aandbIt *Sta dw necessary altr Sad
-I mmMmm
A* rtMglf ! ritftiin Urfib| i*fd m |K Vvfld Trade Center prior to spriting t)it fctNw^e 9f &r4f* spondreU
New Spray Methods Used
On World Trade Center
Folio* ing the Ciena PaDa trial, Frtd L Pundsack, Vice Preaidcot for Research and Dcvtlopnacnt of JohneMaorillt Corporation, ttpmaed bia pictsure at use dual reduction ca pability.
"Tbt two problem observed dur ing tbc trial can be aaaily solved. Wt ill inttaligala tbc nee of diffrrent
and atrongtr Sag material and wt can design apeciagt of more auk able weight. Tbt rodtaifntd packets* ill Sc available for Sotb field and marketing triala la tba near future." he said.
Riaing on the west tide of lower Manhattan art tba 110 elorv high twin lowers of iht Nr* York Pori Authority's World Trade Ccnlcr. Pit towtn will b* the world'i tallest structures.
Nacdleaa to aay, unique practicta art necessary in all phases of design end construction. Fur eiamplc, to Step elevator apace to a minimum, three local elevators will operate in one abaft at different leveta.
The alee of tba buildings baa alto dictated anique precticea for tbt ap plication of aprayed mineral fiber.
Special enrloaurt proerdurea bare btrn developed lo prevent dincmina lion of arbeatoa into the air of N Y. Oil) while spraying the oulaidr of the girdera and apandrela. To prevent loaa at the bottom of tnrlo'urev all Urpt attend through the window arena into the building.
During the apraving of ceiling thr spray sks la sealed from
other work areaa at the elevator ahafla an wall aa from the out*nJr at iht building perimeter.
Conriniaing fort
Efforts lo improve methoda of
apraving inautalion matrrial at the world Trade Center are part of a continuing effort to Improvt apray
procedures in all bulldinga.
JV*
In dierunsing efforts to control the unwonted release of abealot and --arthheffr iinf sulation duals, both on end
iilea, Dr. Irvin* Selikoff. Director, titled, "Some prog-
/*v
being mede. Proper proce dures have Men specified in broad term* hut they mua* he implemented with specific action on all buildinp
i-i
'
L.
Vilito ft. Iikn, Dme ml 11HRP ThM Satin, tkwun aura? aafcraiot yntlioi M spray aaioenl itor msoefseiaran, tlaNariai teeiratverw frtarfal eooai>*caien (wa
nt aka N.V. Oaparuorna at Air O'l
Clean up of waalt la still very seri ous problem everywhere. Work on
the world Trede Center shows tome
of the things that ran be done We
hope progress on the spray problem
not only continues there and else
where, bait eccelcratoa"
907
Kio n 72
ThDtMaa*of
IhoContury
Un Items* Wilder's Mr Aatiotea. au tea wwvtvod km agaa, wsore attela dlaatlc ftewgaa aad. Ova hr at too*. tea earn teaaatic No* tea adapubUKp la fectag at* rteltawgn Lnduotrtolailioa ate captadfa* teckwotogy an radically altering tte nwvinuMH ate capaiag naa to gyowtag aaaouata at barmfid poBmsan. naa at tteta ctemkak that tea aot axial a oawtety. a dacado cr aaa a year or tan aad Raauit aa toman la naa? cad aitaaaaa ate ife* anargaaoa of ao* oate--aO IneaaMa to autetaacaa la air. antar ate tete lay* Or. InriM taliksff of Now Yerfc'l Moim Steal total of Madidaa Tavirnmnil dawaa k baccteag tte diaaaaa Mite
#
Though dgarattoonofcing in itepowsible tor at haat 10% of aS lung can can. aatenoa than an also talon* an teaming loU. It has loa* ban known that workers eapcood lo lj|h Intii of airborne aateuoa flban developed aa In* malignanrioa than people la otter
oocupaitew tel doefen have recaeOy ggssnl ttet otter* an ate vutaergbte pain(an or bonoownon sanding aabaatoa-baaad compound! ueed far ensn aring rough arau oo walla or ceilings; mechanics who work on ubcotoo-insulated breko Uaiaga-
nwcocsoneeieieTi
Miners Return to Work
*9 wu. In nr JoemsAt IM# w THrrroiio yim jowc-itoai *r the i roc workers employed by five aebsetoe mining companion tern ratdraad la wart yartarday after reufytrif a later emmet that aadad a HtaMma Strike.
A apokeeoaaa tar tte targeet company. Aabartaa Oorp., which aaptoya about idea at ||M wurhara, eatd. ''everytntng la pretty done to normal." AabaOtoa Oorp. la Muowned by r.naJatr Ltd., a nil; a Oeueral Dynamic Oorp, OL Lada.
Only cm d tte taur otter eampartaa Carey Chnadlaa Mtoee Ltd.. OH haat* l iiard prndurtf. A opnhoanna tar teal company, wnieh amploya about cm warten, aid tta aaptoyaa tetuaad to ratun to wort
e* "a amen contractual Otapoto." But ha said there was "a MW chance" ttet
** *, a> ,!.a ranir.i t- r< nraar Cs-*7 I a
sukeldtary at Jla Walter Cory. Tuapa, Fla.
The haw aataotee wortata, tacmbara of tte Oonfedarettei el National ltada Ualoaw. raUflad tte contract aear tte acehawd attar a laaUttra back-townrt a(raamaal waa
tar a wage tacmaa at about COW oacr te two year ter*. The onrerd rta* from la* Wcteaodoy to OeL U. ITT. but Inehidao pay retroactive to la* Doc. *1. when tte prertouc contract expired. The etnas te(aa March ?T
Employee alee returned to wart yester day at Lake Aabaatoa aI Quebec Ltd and national Aabaatoa Mlnae Ud-. both unite at Asarro Ine., Maw Tort, and al Ball Aabaatoa Mlnae Ltd . a uedt el Turner 0 Newell Ltd . Manchester. England.
ThetTerd Mines Is about UO mllee east at Martreel
FORASBESTOS RISK
Labor Oipartmiot Suiting Reduction in Expcturt of Workers and Families
By JAM BBOOY
Tbs United Slates Dspsrtment of Labor tel proposed new standard in pro<ect| workers and their familial fromi
the lunt-scarrina and cancer-1 causing tffreta of asbestos, s' Mineral oT a thousand uses
to arhtch million! mt Amancan ererksrt art ssposed.
The tutting aibattoi stsn-' dad. which has been andely
contested by labor groupt, was designed only to prevent ssbestoau. a scarrina of tte lungs UiaL U sevtrt. can tum a work
er Into a cripple In a respirator '
However, the Labor Depart-1 meat's Occupational Safety and Health AdminlstreUea pud to. Its proposal ttet new Memo-'
tioo had drvtlopad steering; ttet tte txiiting standera j would net prevent aibastosia' aad would certainly not pre vent astestoo-cioMd cancan.
Cancan, especially those in-
votvtng tte tong, gastrotntee-
tinnl tract and lining of tte' chest and abdominal civilian,, teva sccounird for more than, 5. par cant of deaths dmong!
some groups of astestoo work ers, a rata three to four timas
hi(tier than ttet la tte ganarel
popuistioa.
I
la addition, studies In south Africa and Now Jersey teva
shown ttet tte families of isbesioe workere also face an|
incraasM cancer nsk because; they are exposed to asbestos!
fibers earned term on the]
workers' clothing.
Delayed nker Effect
Asbesiot enters tte body mi Inly throuph mhtlsiion. It may alio be ingested in fond or dnr.k contemmstsd with the "r:hrrsi fibers Or.rt In tht bo dy, the fibers lend to peniM. remaining dormant for many years Ho tvtr, 20 or more years Itier. esnetrs caused by these fibers may becor.ie clini cally sppsreni
Tht Libor Departm-nt's pro posed ttj.vfsrd would grrslly redure the amount of asorslm filers now show able m the air s worker h-eeihrt s-d
would sharply redjee a lower standard schedtlsd lo llkt sifact next year Cuntntly the standard permits s level of five mill.on fibers per tubic meter of nr. Thu was to hsva been reduced to two million fibers per cubic meter by nest July.
The two-mlDion tovd was
decided upon aa U* beast of
experience in oat lntiph atbos
too factory, whore study of
230'men indicated that, at
about twice ttet level., only
a small percentage of workers
tipotcd for 10 yoare or longer
dess'oped lurj Kirring
I
Howeser. these workers here
since been re-examined, and
T-rty evidenet t* hirg ebnor-
msliret was found in 40 iol
TO percent el the seme group!
Of workers In sdU.Uon. s num
ber of ssbomos-nlatod cancers
was found.
!
The proposed a ndsrd would* reduce worker taposur* to ss-l
booios to J00.000 fibers per cubic meter, averaged over inf eight-hour' day. with o maxi
mum exposure si any one tun* of five million fibers Workers
would have to be educated is he hsisrdt of aibrctos and now to avoid them end tewed periodically ;o be suir* may were suffenr.g no all effect*.
Jtscords Kept Longer
Mlacofdt of both tht medical
xaminetlons end tests of os-
.bastos levels la the wotit envir^|
.onment would have to te bet*
for 40 years, or for tht durelion,
of tht worker's employment
plat 30 years. Whichever tel
ores Iger. The current standard;
requires retention of medilcsl.
recor f 20 year* and mont-i
toringof records tor only three,
ypore.
I
tmployert would also te re
quired under tte new standards
te provide sheerer and cteoge
gooms tor asbestos urteri to
guard again* *heir Inadveruatnr catrylng the fibers, ban*.
8a food, drink or smoking
would bo allowed where nates-
tec waa used and workers
Would teva to wash thoronghb
before eating during tte work
dgy. Tte no* standard would we
re on astimstad total of 30.000 workers involved in the manu facture of xstettoe-containing
products rnd about 40.000 field
hwlaUoa workers who re "-
nosed to asbestos dust. Nad
many thousands of other* who
stork with products that cow
lsIn asbestos.
Tte standard would not comer
milltons of worker* In hc cow-
(tniction Industry, where there
fourths of oil astestoo products
art used. Tte Labor Depart
ment Slid H Intended to formu
late a tenants standard tor
Jteae workers, sine* they art
usually employed In nooftood
work pieces If>d tend to te plgisly trsnsiefM.
Tte labor Department mutt
Wnw prepare an mvimnmentll
impact and m Inflationary im
ped statement before holding
a hearing on the proposed si so
dard.
In addition to tibeitnt stan
dards, tte departmrm last
week Issued proposed new
standards to litml worker esposure to Irsd tod intnerr. both
Widely used harardous lod.rs-
tnal siihsliocrt. and ssrsh
iishrd protrdvrri for n.iHlI.n*
It other intic cHrmo sis in
lbs ork rnuruomrot
YORK TIMES O c to b e r 5 . 1975-