, 740 CHAPTER 55 1959 Gvidi through systems, where large quantities of water are used, intermittent treatment a few times each day will usually result in satisfactory slime removal and chemical economies.

>22 1959 Guide STRAINERS, IHit V.

LANCASTER.

Industrial Hygiene Digest - 34 January, 1950 ` "blood raised the viscosity of the "blood, --Condensed from Brit.

OFFICERS OF THE AUTOMOTIVE AND MACHINE SHOP SECTION NATIONAL SAFETY COUNCIL 1958-59 General Chairman--EDWARD D.

INDUSTRIAL HYGIENE The variety of substances and processes that present occupational health hazards steadily increases.

Safety Engineering Tables CHART 47-A AVERAGE CONCENTRATIONS OF AIRBORNE PARTICULATE MATTER 1-IOOOOOO EXPLOSIVE CONC OF (TjOUB AIRBORNE OUSTS COAL IOOOOO- DUST STORM BALTIMORE FLY ASH ASMS STD EFFLUENT l00- MILWAUKEE LOW PRESSURE PNEUMATIC CONVEYING SAND AND STONE 0RYIM8 STACK EFFLUENT 10000 CONCENTRATION BLAST FURNACE "l 6REY IRON FOUNDRY CLOUDBURST I OPEN HEARTH ELECTRIC STEEL BRASS FOUNDRY DRILLINS COAL CUTTING MINE AIR ORIZZLE MODERATE RAIN too I BREAKING PICKING COTTON MILL 10- - WORKROOM AIR^oajs INDUSTRIAL aFOG MIST - SHAKEEUtauiUrrfywELOING-- CLEAuMbNnbSIf Fezs FOUNDRRY I ZnO -------------- 1 WORKROOM AIR Mn POURING!

studied by highly quaVriied investigators whose reports were published in 1955,t`> 1965,<') 1968,w and 1977.o*i These workers represent the only cohort of asbestos work ers in the world in which health effects have been corre lated with definitive exposure data defined as fibers per cc.

ANNUAL REPORT INDUSTRIAL HEALTH BUREAU 1951 The Laboratory of Industrial Hygiene The services of the Laboratory offered to Group policyholders were discontinued on July 1, 1951.

C 0 P Y May i, 1950 Alfred S.

^MUTpAI^CHEMICAL COMPANY OF AMERICA - 270 MADISON AVENUE -^ | NEW YORK 16, N.

Johns "Man"vtixe Corporation TYTTSTT -TWO mtT FORTIETH STREET NEW TORE 16, N.Y.

Labestea, Box #1500 * ^ : to* 7, 1950 . ' .

` v PERSONAL: IVAJV SAOOURI^r ADVOCATN '* - - .

COLUMBIA-SOUTH EKN CHl'MiCAL CORPORATION SUBSIDIARY OF PITTSBURGH PLATE GLASS COMPANY CABLE ADDRESS -"PlTTC H EM" N, J.