Document 3eaDJMXyD8646VDdpjx7G6zvO
FILE NAME John Crane JC DATE 1978 Sept 12
DOC JC043
DOCUMENT DESCRIPTION Field Visit Report - Ontario
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400 Unive ity Avenue 7th
Toronto Ontario
M7A 1T7
Floor
416 965-4066
September 19 1978
Plant Superintendent Crane Packing Company Limited 423 Green Road Stoney Creek Ontario
Dear Mr. Mellikow
Enclosed is a copy of the Field Visit Report Mr. D.A. Brown P.Eng following a visit to on September 6 1978
prepared by your plant
Yours truly
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truly
GSR
G.S. Rajhans M.Sc. P.Eng Occupational Health Engineering
Ontario
Ministry of
Labour
Occupational Health Branch
FIELD VISIT REPORT 416 965-4066
O.OH.H..B.B. File No. 13978HEAB
I.H.S.B. File No.
Plant
Address
Crane Packing Company Limited
423 Green Road Stoney Creek Ontario
Date September 12 1978 From D.A. Brown P.Eng
Requested
O.H.B.
Req ofuRe eqs uet st
Contacts Mr. R. Mellikow - Plant Superintendent
by Accompanied Mr. R. Sales I.H.S.B.
Visit
September 6 1978
Hazard
Copies to
Asbestos Dust Crocidolite & Chrysotile
Dr. G. Debow
Mr. J. McNair 3 Dr. J. Vingilis
Mr. R. Mellikow
Abstract
In the packing department gaskets are made from materials which in some cases
contain blue asbestos crocidolite The braiding operation as well as the machining of couplings containing white asbestos chrysotile expose workers to dust since neither operation is provided with any local mechanical exhaust It appears at present that the exposure to asbestos dust chrysotile and crocidolite is not above the suggested threshold limit values
Recommendations are made but no directions are suggested
*
*
*
During the last air sampling survey A.Q.A. Report it was observed that blue asbestos was being used
evaluate exposure to blue asbestos
791 dated July
This visit was
28 1978
made to
Crane Packing
2
September 12 1978
In the packing department custom gaskets are produced from felt and compressed sheets which both contain blue asbestos These gaskets are used mainly in the chemical industry where acid resistance is required For other applications the following materials may be used
Chrysotile white asbestos
Buna - N
Neoprene
Cork
Butyl Rubber
The blue asbestos felt sheets from which the gaskets are cut measure
68 x 71 and come in widths of 1/8 and 1/16 In 1977 1100 lbs of
this material was used and for 1978 1200 lbs is expected to be used
The compressed sheets of blue asbestos measure 50 x 50 with the
most common width 1/16 The estimated usage of this material for 1978
is 1,200 lbs
;
The small gaskets are cut using a dye and a punch press with the larger sizes up to 60 hand cut on a large table There is no local exhaust to control the dust produced during mechanical or hand cutting
The scrap sheets of asbestos are stored in open racks next to the cutting table
In the teflon department envelopes for covering gaskets are produced The operator who carries out this job also works as a lathe machine operator To produce a teflon envelope a piece of teflon tape is cut on a special dye and then welded together and inserted around the gasket This envelope gives the gasket chemical inertness The gasket could be of any material but at the present time blue asbestos is very
_ prominent
In the teflon department occassionally bushings aremade from white
asbestoass
placed in a
on a lathe
follows The asbestos cloth is first soaked in teflon dye compressed sintered in an oven and finally machined
There is no local mechanical exhaust provided to control
dust at any of the operations involved in the production of asbestos
bushings
Comments
1
In Ontario occupational exposure based on a 8 hour day or 40
hour week to asbestos is acceptable up to the following limits
-for chrysotile white asbestos - 2 fibres greater than 5 micrometers in length per cc of air
-for crocidolite blue asbestos -0.2 -0.2 fibers greater than 5 micrometers in length per cc of air
2. During the last sampling survey the gasket operator was cutting sheets containing blue asbestos In order determine the appropriate threshold limit value for this sampling result the following information must be taken into consideration
i ii
About 65 of the gaskets he produces contain asbestos and this is divided between the blue and white variety Since the gasket operation is not segregated from the braiding machines which processes chrysotile asbestos he could be exposed to background dust from this operation
- . .13
Crane Packing
-3-
September 12 1978
2. Cont'd
iii
When the asbestos fibres are counted under phase contrast microscope it is not possible to distinguish between chrysotile and crocidolite asbestos
Based on the above the gasket operator is therefore subjected to a mixed asbestos exposure If we assume he is exposed to crocoidolite 50 of his working time and 50 chrysotile then the appropriate threshold limit value for assessing his asbestos exposure would be 1.1 fibres Since the last air sampling shows this operator is exposed to 0.5 fibres then his exposure to asbestos is within acceptable limits
3 The braiding machine operator has a continual exposure to chrysotile asbestos However since this operation is about 50 - 60 away from the gasket operation he could be exposed to some background crocidolite It is felt that if his exposure to asbestos is kept below 1.0 fibre then this would be acceptable The last air
sampling survey showed that this operator is exposed to 0.3 fibres
4 The teflon envelope operator is exposed to blue asbestos as he wraps the envelopes around the formed gasket however not all the gaskets he works with contain blue asbestos Since he is not
required to cut the gasket this is done by gasket machine operator his exposure to crocidolite asbestos should be minimal His major source of exposure to asbestos is more likely to be from two nearby dust producing operations The soaking of white asbestos cloth in teflon is carried out about 10 from his envelope table Also the nearby lathes 10 away which can be used to machine asbestos to produce couplings generate white asbestos as none of these machines contain any local exhaust This envelope maker
also works as a lathe operator
Apparently the envelope production does not take more than two
hours it is
per day and since likely to be less
the maching
than 3-4 3-4
of asbestos hours .per
is also shift
intermittent
Thus in
the teflon room the appropriate threshold limit value is likely to be about 1.5 fibres Both samples in this room were well
below this limit
5. The results of recent air sampling show that none of the workers
sampled are exposed to levels of asbestos that exceed the estimated
threshold limit reduce exposure lowest possible
values However the goal should always be to to asbestos dust especially crocidolite to the
level and in order to do this recommendations are
suggested at the end of the report
Conclusion
It appears that at the present time the exposure to asbestos dust
chrysotile and crocidolite is not excessive and thus no directions
are suggested but recommendations are made If
asbestos increases especially the crocidolite
will have to be evaluated and directions may
however the use of
then the exposure be necessary
,. en
a Seoe. ae. a a
es
~ - 14
Crane Packing
-4-
September 12 1978
Recommendations
1 Operations involving the use of blue asbestos crocidolite should be isolated seperate room so that nearby or neighbourhood workers are not exposed
The scrap asbestos in the packing department should be stored in such a manner so as to prevent the dissemination of loose dust
3 Asbestos dust should only be cleaned up using a vacuum or wet mop never dry sweeping as this stirs up settled dust and causes
unnecessary exposure
4 The use of materials containing blue asbestos crocidolite should be curtailed or eliminated if possible
Directions to be Issued
None at this time
DAB
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M7M7A1T7 A1T7 1965-41251965-4125
1965-4125 -
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SIC
REGIS NO
DIV
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AN 355000030002 hae
NUMBER ON ALL INQUIRIES OR CORRESPONDENCE
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CRANE CRANE
CRANE
CRANE
PACKING
PACKING
PACKING
No Ne
ADDRESS
No
No
No
Rex
Rex
324
324
324
- TION OF PREMISES
;
CO LTD SINC SINC
CITY
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|
HAMILTON HAMILTON HAMILTON
#
23
23
AGEMENT NAME
GREEN GREEN
) INTON
I% OF PREMISES
ROED ROED :
STANDAND CLASSIFICATION CLASSIFICATION GEOGRAPHICAL
TRIGGER
350503005 350503005
OUT STO
BRAVE
BRAVE
BRAVE
BRAVE
PARKING PARKING
PARKING
PARKING
CELTA CELTA CELTA
MAILING #
ADDRESS
80
Brx
80 Brx
3028
3028
SSenee ne
CITY
HAMILTON HAMILTON
..TY ..TY OF EMPLOYER - COMPLETE WHEN SIC NUMBER TO BE CHANGED OR FOR NEW EMPLOYER
| REG DIST
,
0729 POSTAL CODE 0729 MONTH DUE
.
481723 481723 481723
PRIORITY
TG
38/406/662
TELEPHONE NO
38/406/662 38/406/62 46/662/6191
38/406/662
LOCAL
39306074
39306074 39306074 39306074
POSTAL CODE 39306074 STATE
SH
SH 743
ONT
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YPUNCH DATA
J FILE NUMBER
5 0 0 30 0207306097825120 04 0 040
500300207306097825120040040 50030020730609782512004004500030207306978251204040 50030207306978251204040 500300207306097825120040040 50030207306978251204040 50 3020736097825104040 500300207306097825120040040 5 0 0 30 0207306097825501023000207306009748251200040004040 5500003000207306097825120004400040 5500003000207306097825120004400040
500300207306097825120040040
50 30 273069782510 40 4
500300207306097825120040040
5500003000207306097825120004400040
INSPECTOR
NUMBER 503027306978251040
INSPECTION DATE
7503)207698251040 DAY MONTH YEAR
50030207306978251204040
500300207306097825120040040 5500003000207306097825120004400040
E | INSP
50030207306978251204040 CODE
5 0 0 30 0207306097825120 04 0 040
50 30 2073609782510 40 40
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NUMBER OF EMPLOYEES
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SPECIAL VISIT BY MR D.A. BROWN O.HS. RE BLUE ASBESTOS ASBESTOS
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i ACT OR REG SEC
Take notice that you are required to comply with the following directions under
() The industrial Safety Act 1971.
The Loggers Safety Act
Canada Labour Code Part IV
CONTACTS CONTACTS
MELLIKOW Age
Age
MELLIKOW
( MELLIKOW
4
SUPT
PLANT SUPT
TURNER
17R W. TURNER FOREMAN
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Please notify the Branch by
letter upon complation
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