Document 4vqGagpxgVp9ZJ5Vw3NnGKkB1
IN I l-HNAI. C0HIM:3P0I40EHCI:
UNION CARBIDE CHEMICALS COMPANY
INSTITUTE PLANT P. 0. RSX
fll>WM I Mflll, MSI VIRGIN ,
i (Kow*,1 r cnif><iNy
.lion
Mr. G. C. Ginmbruno Ind ur: trial Rclutions
Oala U December 1962 Origiro'iag opt. Me(\lcux Department - Plant 912
Aniwtrirg fr cloto
opy to
Mr. ],. H. Dickinson Mr. E. G. HeinzSu`,',t'
Mr. G. 1!. Daniels Mr. P. E. Henry
>
35 O
P
Mr. M. O# Tins Lmaa
Mr. H. A. Huber
Mr. D. R. Ilatheny-4r*"<12,
Mr. D. F. King
Mr, U, H. Ketcham
Mr. F. P. Snyder
Dr. C. U. Dernehl
Dr. i;. M. Dust, Jr.
^
s>
Insulation Block Dust Gurvey Construction Insulation Shop
Plant 511
vf 9
Two reports by Hr, R. E. Peele have been issued on this subvert (21 March 1962 and 20 July 1962) and sent out under my signature. si 1<- iViy IS"'--', a copy of a letter from Doctor tlnle to the UCC Central Purchasing Department in Mew Yoi'k pertaining to this subject wub Gent to some of the people on the above distribution list. Undoubtedly, Johns Munville is extremely - interested in having our Construction Department use their "Thermobcslos" blocks. However, I believe that possibly unnecesnary pressure is being applied to us from several sources.
The enclosed report by Mr. Peele includes information on nn invitation for Mr. Feole to visit Mnnville, Mew Jersey, at Johns Mnnvl1 In's expense to evaluate their industrial hygiene studies. Mr. Icele I'm in*,.a out in this report also that he has been contacted recently by the Design and Construction Department at the Technical Center who have implied that Mr. Peele should comply with Johns Manville's proposal.
It is my opinion that we should continue to do surveys, with .1 D.itai ions, on samples of *'thermobestos" blocks that are of a new formula I'nd are submitted to our Construction Insulation Shop at the Institute Plant for -valuation. However, I am not in favor of Mr. Peele accepting Johns IVu'vl 1 le'r. Invitation and would appreciate approval or disapproval for this trip from my supervision no that Mr. Peele can he informed accordiugly.
lUlHph Enclosure
A24Q77
Very truly yours,
fyQoy&zZs
ll.LJ. Dexton, M.D. Plant Medical Director
UCC 016157
IN i rilMML COUKtlSPONDENCi;-------------------------------------------- ----- -- -------------------------
* i- '*
UNION CAIIHIDE CHEMICALS COMPANY institutk tlamt p. o. do* yn.ii.
r iv.tm $cnm
l* frinpony
Co,., la
R. J. Sexton, M.D.
#
Medical Department
Do' 3 December 1962
o,(p.noiif>c o.pi. Industrial Hygiene - Hunt 512
Antwtring Ulftr
Sulj.cl
Johns Manvillc "Thermal catos" `
Cm 21 March 1962, an Industrial Hygiene Report, l.e., 62-111-1-6-3, Identified the existence of n hazard to health in the Construction Insulation Shop during such times ns vhen insulation blocks manufactured by the Jolins Manville Company' are being fabricated- with exhausted band savs. It was rccomnieTjled nt that time that 10" x 36" x 4" "Thermobestos" insulation blocks51 r.liould not ** be fabricated with the existing equipment unleos --
(a) The atmospheric dust problem could be reduced to below 20 mppcf of air tluough the use of ventilation, etc., or
(b) The producer of this product begins manufacturing, an Insulation block which will not release upon fabrication with a band saw, dust concentrations in excess of.20 mppcf of air.
]p accordance with these recommendations, the Conn true Mon Insulation fhop discontinued almost immediately the purchase of "Thermobestos" insulation blocks.
. On 20 July 1962, a second Industrial Hygiene Report,, l.o., 6;'-JH-2-0-.l . war- submitted subsequent to an evaluation of three v insula'ion materials supplied by the Johns Manvillc Company. Thin report concithat these materials were improved over the original. However, the dust c'li-'enttatJons produced- upon fabrication of these insulation blocks were substantially In excess of the recommended safe concentrations cf 20 mppcf of air. Therefor1', the recommendations contained in 'this report remained exactly as those stated In the initial report of March, 1S>62.
,, On 2c Hovnnbo)- 1962 the author wan contacted by Mr. D. !'. Mitlvcny, Cmk-i'mI I-'ia ctnrui id' the Insulation Shop, who ctntod that l hree Johns K'livliJo ri'pi-osentaI J ves, l.e., Messers. F. t. Maxer, N. Movdon, and II. !:!. Haul i nn, wore
pres.ail and had requested a meeting wi th the Dlnl Industrial Hygienist. This meet lag. was he.l.d in the lobby of Building 2, at which time Mr. .Saxo' produced the accompanying.copy of portions of a report submitted by the Johns Mmm/IU.c Industrial Hygiene laboratory located at Manviilc, N.J. Mr. Caxer slated thut, In accordance with this report, they were not able to produce results which agreed with those conlnln- d Jn the reports submitted by this department. Therefore') they were concerned and interested in learning if their methods of reproducing
"The Johns MnnvilJe trade name for their insulation blocks
A 2 4 07 8
UCC 016158
V
H. J. Goxton, M.D. 1 December 1962 luge 2
.i '
cmi- environmental coalitions, sampling and evaluating Die duct cone'-a tint],onrcontained therein were subject to question. At this point he suited also that, this conclusion was promoted on the basis of their analysis of the n tries pheric dust conditions produced by their competitors product, (i.c., Knylo or Item lj ')AT in the report) which in no way agreed with the data oubmitted in the Jnduotrial Hygiene Deport - IH-62-I-G-I.
It was explained at this point, that this department's interest in this problem is always confined solely to the environmental conditions as they effect the health of our workers, and that no part of the investigation should be construed as an .attempt to arbitrarily promote the use of one company's product over that of another.
Upon completion of this statement, Mr. Saxer proposed lhut
Mr. D. H. Mitheny and the Plant's Industrial Hygienist make a trip to tVinvi] ]o.^
Hovi Jersey, at Joints Manville'6 expense and at a time selected by Union Carbldd.
This visit would be for the specific purpose of observing, scrutinising and
comparing their method of atmospheric dust evaluation with that us utl 1 iti/.cd
by the Institute Plant's Industrial llugiene Department. It was Mr. I'.'ixer'n
opinion that such n .visit would permit a more positive approach to the problem
and remove the possibility of misunderstandings, etc., that results IY< r.i written
correspondence. At this point, Mr. Saxer wan assured thut there would be no
personal objection on my part to the performance of such a service. However,
a proposal of this nature would have to be submitted to the riant Manager,
Mr. L. II. Dickinson, through appropriate channels before a final dec is 1-mi could
bo made.
`
In conclusion, it should be stated that a phone call. war. received
from Mr. F. G. GomerforA of Design and Construction ou the morning of HI November .1962, who requested that he be brought up to date on this ir.Ilic problem. This I'-gaost was Immediately satis!Tied both by verbal. e:-::-1until n f>l by the promise that copies of both reports, i.e., 62-111-1-';-] m 1 '-Ill-H-".-.!, v-'M.l.d. he mailed to him Immediately. Mr. Comer ford . further stated that w should nnl had: down on our requirements, but that it probably might le vu consider their proposal, in light of the many ramifications of the problem r.. !' alTectc . Dim whole company structure, i.e., purchasing, sales, ir/mul'ucburing, < 'e.
V-'iy truly yours,
1: l':i',h l-):.elos'u '
c nob.o-i, l:. lvoio Industrial Hygienist
A24079
UCC 016159
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UCC 016161
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UCC 016162
UNION CAIU3IDE CIIEMICAI.S COMPANY
institute plant
p. p m*
un-v.i-u, >;,ri viKqhn
1 *; .in i ni iihnn
Mr. G. J. Ratcliffe Industrial Relations
Pol* Originating Answering
Cvpy fe
Mr. L. N. Diekinaon Mr. (t. H. Daniels
Mr. N. S. Fast-man Mr. 11. A, lluber Mr. 13. F. King Mr. Y. D. Snyder Dr. C. U. Dernehl
Dr. E. M. Dest Subject Mr. E. G. Heinz Mr. P. E. Henry Mr. R. A. Real Mr. D. R. Matheny '" Mr. R. H. Ketchnm
.4
20 July 1962 Medical Department - Flnnl 5>12
Insulation Block Dust Survey Construction Insulation Shop
Plant 511
Enclosed io an industrial hygiene report by Mr. R. E. Peele on the polf-nMnl hazardousnuns of "nev and improved" "Thermobeetas" insulation blocks . nil v.H.ted by the manufacturer for evaluation by band saw processing in the Construction Department'll Insulation Shop. The report points out that the three "nev anl Improved" cample blocks, subjected to t.est conditions identical with those in use and reported upon in March of thiB year, are an improvement somewhat, but these blocks too, relenoe quantities of asbestos dust particles into the working environment considerably above the acceptable safe limits (i.e., the T.L.V.). Therefore, definitely, the processing of "new aal improved" blocks also constitute a linzard to health.
Mr. Feclc recommends that "Therraobeetos" blocks not be processed In the Construction Department Insulation Shop until they meet acceptable standards and I concur fully.
Very truly yours,
H.IM :r;l Enclosure
Plant Medical Director
408 3
UCC 016163
V jmi>ii;;nuAL live, iknh iujhvky
(XUi'iTKI.lCTIOH inr.UIATlON SHOP - PUT.I.nine 511-2010
REPORT 62-IU-2-G-1
* t
RlIM? WHY:
In March of thin year, following an industrial hygiene survey, It v.\s recommended tint band naw fabrication of "ThermobestoB" inc-ulu* Ion blocks in the Construction Department Inoulation Shop at Plant 512 r-houl 1 cnise completely and permanently unless the blocks, or the duot control techniques unril In fain-1 eating the blocks, arc improved so thut'atmospheric dnr.t concentrations are found to be within acceptable safe limits, in lhe following month of April, three new "ThermobcBtoa" insulnllcn blocks were tniVm!tied to Plant 511 for evaluation under environmental conditions identical with those experienced heretofore.
Critical analysis of the data obtained on thi3 more recent (survey revealed
the existence of some degree of improvement in the dust contamination
associated with the fabrication of these particular "Thermobratos" insulation
blocks. However, the magnitude of the improvement did not reduce Hr:
atmospheric dust concentrations to within the recommended safe ncc-plnble
limits of 20 mppcf (million particles per cubic foot) of atr. Therefore, thd
recommendations remain exactly a3 those stated in the report of iho survey**
of March, 1902*.
.
INTIiODlI',T10N: It. van established unquestionably, in an industrial hygiene report
submitted in March of this year, i.e., Report 62-IH-l-G-l, that an inhalation hazard to health is produced within the Construction Insulation .Shop whenever
"Thcrmobcntos" insulation blocks are fabricated. Furthermore, It van roeornmended also that the fabrication of "Therraobestos" insulation blcckn should cease until at least one of the following two conditions are met: First, that the atmospheric duat problem Is reduced to below 20 mppcf of air through tlw use of ventilation, etc., or, second, that, if a new insulation block should Vie manufactured by the producer of "Thermobeotos" bleaks that, it would be subjected to testing under identical conditions an before thereby estnblJelling the fact Hint it will not release, upon fabrication with a band saw, dust concentrations in excess of 20 mppcf of air.
Tli*: Industrial Hygiene Department's recommendations met exact < -mt 1 lance by
those responsible persons In the Construction Insulation "hop, ir that no
"Th nnoben ton " . inr.ulntion blocks have been fabricated-with ban! saws for use
In thin plant since the date of the issuance of these recommendation:;.
How-t, sora; riving* in' procedure was indicated when, on 25 Apr 1.1 I'>'.2, this
% dep irllimit wm conlael'-d by Mr. D. R. .Milheny, General Kor'T'in t Mi'*
.
* I n'-.u I m I I on .'hop. At. that, time, Mr, Mnth'uu' request''! an evatuitt'n of n n'W
l!i' 'ic'tiesl.>s" Insulation block which had been developed !;; Hv ntnufactm-r,
In a '-rfort to comply with the specif! cat Iona an stated in Uv .'<< on.d part
of the above listed recommendations.
" j ivule t] (in i'P.rii Paint ourvey, Conn traction Insulation .Shop, Plant Sit ,
Repnrl
Jll-l-G-1.
A 240 oR 4
UCC 016164
IM.'r'U".lot': Mr. Mi lit1 iiy'n roqucs 1. for 3"rvtcc0 van Immediately nc tod i jj->n I- vh! oh
I,In-' two b in !.c decisions were rado: First, Friday, the 27th of April,
von 11 be the *noGt. opportune time for obtaining the information neebd in the
performance of this evaluation and, second, two atmospheric dust samples
>
of each coalition should be obtained vith each one being tnkon In identlcnl :*
locations so ns to provide greater reliability. These omnpl. ing plans had
to be olterd somewhat, however, on the 3ite, when it was discoverc-l "Mint
the nvvnulnelnrer had provided only three Insulation blocks each of which
d if fared'in the precise manner in which it had been produced*'.
Tliin shoring'' of material, with identical characteristics, complicated the: sampling nn-.l evaluation procedures somewhat, since it was Impossible, therefore, to obtain more than one sample of atmospheric dust being produced by any one material (in actuality, a total of only three atmospheric dust samples were collected during the test period). However, this complication van not no severe as to render the sample data of no use, as Ji reveal"'! In the condensed explanation of the sampling procedure selected on this date which in an follows:
First: The data contained on page 8 of Report. 62-TH-J -b-1. r^vcale 1
clearly that the greatest concentrations of atmospheric dust were
pro lured at the band saws, and that location #3 i
tvT bind aav ^
while sawing, definitely provided the greatest hazard to lualth.
*
Consequently each of the three samples, under connHcru* Ion In thLa
report, i.e., 62-IH-2-G-1, were taken at this 6ame location.
.''eennl: All of the results revealed In the preceding report, f-o., K.'-Iii-l-G-l, were obtained during the late fall find winter, therefore, the doors to the building were.closed for purposes of lrat conser vation. These environmental conditions were duplicated during the performance of this second survey.
Thirdr The operator of the #2 band raw employed saving techniques ns m arly identical vith those in evidence during the proof'ding periods of evaluation as were possible to duplicate, 1."., position of the block with respect to the saw blade, speed of r>,,diiT the block Into the raw blade, position of live operator's h"u 1 vlMi rrsper-t, to the block, etc.
Fourth: F-ach of the dust samples obtained during lb" l 'w ,r perfo: r.tng th" initial survey were held in tli" operator's breath! ng nu<:. This f''atut" was aloo duplicated for Mils second survey, i.".. ''-i-lH-2-G-.l.
KV.h 11 i.'i'i 11 `fj; t. h of lb".throe uinnples collected wore evnlun! '! In Mu- l-->h<>ral ury in ' n>v* rl'iii''" vilh vert'iu'n nded find prescrlb"d light ri"ld in !o ro.I counting t'.'"lmIquo:: .Mg referred to and identified In Report '2-I1I-1-G-i . M should b<> p d.'l ili.it. po effort was expended to obtain anything more Ibn . knew]edge
of tli" coi>""nti ati.on of dust in the air since the compost Umi m particle r.' r." of t'He. I'ltorial should not be exp"ct"d to'deviate to any degree from . Hi' prior recorded values. This, supposition was based on two farts, (1.) I he
5in VMiilnner wiTTi Inf 'imallon received from the manufacturer cacti bluet v.u composed of ld"ntloal ly the nan" material s and was formed in the same general n. inner, I.e., . by tli" 'Tan I'ethol". However, the similarity in p'.clucl lon dlffonl f. :i h -i" on wM.h the mtnufictu;<u being th" only one in possrenion of- tlie exact des"r ijr len and t|'" specific altorat 1.m Incorporated in each method.
A2403b
UCC 016165
d.
V * 11 *tn i -n T. ml'-' up of tlier.c materials van reported ns being tl'iillc'l with
Hi. "'IIkm mob--s Log" materials reported on In the prior nnrv";,- mil, tli ' uuwJ.ng techniques utilized on both occasions were Identic?.]. In nature.
t INOCKPUHIvS: Doth sampling and analytical methods vere Identical Jn detail with those described In the earlier report, with Gampling being accomplished through Die lice of Hie Mine Safety Appliance Company's Midget Implnger Pump nnd Apparatus and the analysis taking place in accordance with light field microscopic counting techniques.
HK'iULlo: Analysis of the physical data contained on page 5 reveals that the . atmospheric dust concentration in mppcf (million particles per cubic foot) of air for each of the three new materials was
(a) :,6.$ mppcf of air for J.M. //21,
(b) hN.l mppcf of air for J.M.i/22, aud
CONCI.UolCNo
(c) Wi.l mppcf of air for J.M. //23-
f'
(1) None of these three samples revealed a concentration ns high as that record''d in the previous report for "Thermobestos" exposure" In this position, i.e., 101.k mppcf of air for Location #3* However-, by the Game lol'.cn, none of the preseut three samples revealed n concentration as lev no that recorded for "Kaylo" exposures in thi3 position, i.c., 17-1 mppcf of air for Location #3*
(2) inch of'the three values exceeded the established T.L.V. (Threshold Limit Value) of 20 mppcf of air by a substantial amount.
(j) Noire or the three insulation materials, i.e., J.M.//21, J.M.H'd?., and J.M.as oubmlttcd by the manufacturer of "Thcrmobesi.or,", should be fabricated with band sawn in the Insulation Shop by "m mployces unlesu the manufacturer complies exactly with the foLleviiv. conditions:
'Che physical and/or chemical characteristics and compos i I. i-si of these materials are Improved to the degre" that some further future ova 1 u.'i 11 on might reveal them to be incapable of releasing concentrations of dust. Into the atmosphere that ore in excess of the T.I..V.
i;iv< MMKtJUAI
M" not fabricate the 1.8" x 36" X U" "T)i"iiii'jbestcs" insulation hl.o'duj (J.M.721, J.M.^22, J.M.//23) with existing equipment unlens -
(l) llio pr-'incer of this material can further improve hln nr-Mu-t l.o Uv
point that it will not release, upon fabrication with
v htllatel
band raws, dust concentrations in excess of 20 mppcf of air, or,
A24086
UCC 016166
V
t
{?) The ntroor.pheric dust problem can be reduced to below 0 mppc'f o:
air through the une of Improved ventilation techniques, or other
.safeguarding measures.
-
PFTlgl 15 July 19^2
Submitted by
?.Q oJLPcbert E. Tcele Industrial Hygienint
/
1 I I
A240S7
UCC 016167
INDUSTRIAL HYGIENE SURVEY
evaluation of atmospheric dust concentrations
AT THE CONSTRUCTION INSULATION SHOP
Atmospheric Dust Concentration Data cm Three "Thomobestos" Materials
As Collected with the Midget Implngcr Pump and Apparatus
. r
TYPE OF DUST
MATERIAL
JM ji't'.i
JM if22 JM #23
. LOCATION
Hate in
cfm
Time in
Min.
SAMPLE
Vol, in
C.F.
Blank $ Dilution
Particles Factor
Count 0
Fnvtlcl': -
Cone. In mppcf
of Air
{,`2 Paul Saw, !'rr"ithinp, 0.1 10 Level of Operator
1.0
0-3
100 cj'i .R
36.0
Same an Above ` Same aa Above
0,1 10 0.1
1.0 1.0
0.3 0.3
250 57.0 200 G5-0
*10.1 UU.l
A2408S
UCC 016168