980 CHAPTER 51 1949 Guide film on the metal surface or to neutralization of the COt by the alkali in the silicate solution. .

Heating Systems Pumps BIRMINGHAM BOSTON BUFFALO BUTTS CHICAGO CLEVELAND Ingensoll-Rand TM BROADWAY.

640 CHAPTER 30 19S0 Guide Conditioning, May, 1941, p. 308, and June, 1941, p. 368.

Insulation Reflects American Flange & Manufacturing Co.

Con ki dk ntial Mellon Institute of Industrial Research!

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1 L/ MONSANTO TECHNICAL BULLETIN No^;P-124_ October 28, 1947 Monsanto Chemical Company Saint Louis, Missouri New York-Chicago-Boston-Birmingham-Charlotte-Cincinnati-PhiladelphiaDetroit-Los Angeles-San Frsncisco-Montreal______ ____________ x'AROCLOP^ as reran tw chlorinated RUBBER I.

/' DRAFT ACTIONS ON VINYL CHLORIDE EXPOSURE LEVELS ACGIH X American Conference of Government Industrial Hygienists X [TLV is ACGIH1s copyright similar to Time Weighted Average] Recommendations VCl included in first list 1948 TLV 500 ppm Proposed change to make TLV the ceiling; value (1962) ?

Appendix III "N-Nitrosodiethanol in Synthetic Cutting Fluids: A Part-Per-Hundred Impurity" / -> /-/ l tmmmkrt. 114.

xch Studienges.

axr Occidental Chemical Corporation RELATIVE VISCQSITY(l) / K VALUE(2) / POLYMERIZATION DEGREE(3) RELATIVE VISCOSITY K VALUE POLYMER IZA' DEGREE 1.50 46 310 1.60 49 420 1.70 52 520 1.80 55 600 1.90 58 690 2.00 61 800 2.10 63 900 2.20 66 1005 2.30 68 1110 2.40 70 1220 2.50 72 1360 2.60 74 1490 2.70 76 1640 2.80 78 1780 2.90 80 1940 3.00 81 2100 3.10 82 2250 3,20 84 2400 3.30 85 2550 3.40 86 2780 3.50 88 3010 3.60 89 3220 3.70 9Q 3440 3.80 91 3650 3.90 92 3940 4.00 93 4150 (1) 1% by weight in cyclohexanone 25 C (2) 0.5 g/100 cc in cyclohexanone @ 25 C (3) 0.2 g/50 ml nitrobenzene soln S 30 C (OXY Test Method No. 500) (DIN 53726) (JIS K 6721) MflV 1983 NON WARRANTY: Occidental's recommendations or instruction* a* to handling, uee, or disposal of any product, including its use alona or in combination with other products, or as to any apparatus or procan, or the uia of any products in connection therewith, are based upon information believed to be reliable, but Occidental makes no warranty and shall have no liability with respect thereto.

'-'--nji PrsjL:cad Puiu:..*: - CJ 4237 ET F: EXPERIENCE WITH DOW PERSONAL SUMMARY ,...7;'7.; ' ' 0\fl/ * Torfe WAV.F LUTHF.Tl V.

-45- Dust partioles in samples taken during the operation of Universal grinders have these characteristics (Continued)?

0 for iiudy because (be findings were unusual for uncomplicated pneumo coniosis.

i2.a-urC TK/OOPT. , Twr Prevail US.