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Kir 0018316
May 6, 19^1
Mr. C. P. Mitchell of Palmer Company, 26 Clay Street, St* Bernard, (Tin* 7^09) called*
Are manufacturing glas3 tubing for thermometers, melting about 100 lb* q..d* in open silica brick furnace* Natural gas used for fuel; flame playing directly in glass. Combustion products and any fume discharge into room (30f x 30T x 15f) , there being no stack*
Ingredients in furnace:
Sand
-
53-58
Red Lead
25
Soda Ash
10
Feldspar
3
Borax
3
Arsenic
0*5
Manganese dioxide
0*25
Sodium nitrate
3*
Charged at 2000* F. and heated to 2500* F. in 4 hours,
held for 21!- hours, dropped to 2000 F. for 2^- hours and
recharged. No visible fume but there is haze in room* Windows
cloudy and noticeable deposits have accumulated on walls,
floors, sills and throughout remainder of building. These
became noticeable after initial 2 weeks of operation and have accumulated in past year. Three men exposed; no medical
supervision. Mr. Mitchell has had worst exposure. Has had
no symptoms but has lost about 10 pounds. Other men are well.
Sample of deposit from walls brought in for analysis.
Report is attached.
K 0018817
Willard Machle, M. D.
N19749.01
A sample of dust submitted by Mr. Mitchell, Palmer Thermometer Company. This dust was collected in the room in which the glass making furnace operates. The charge of the furnace is as follows.
Percent
................
................
Red Lead....................
Soda Ash....................
Feldspar............... ... Rnrpv............
Arfifinin............... .. ...............
MnOo ........................... ................
I'JaNOs...........................
55-58
0.50 0.25
The dust was soluble in acid, except for a small quantity of carbon particles. The following metals were present in the dust.
Metal
Percent
Pb...............
Al............... Cu...............
As...............
... 0.18 ... 0.00
2.0k
Sample Received: Sample Reported:
KiT 0018818
1S19749.02