1952 No Record

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

r Y sent tor e. ind Industrial Hygiene Digest - 9 September, 1952 as biolo(jical aspects of aging, nutrition, physical activity, and emotional health.

28 Safety Exposition Exhibitors Transactions, 1953 National Safety Congress 29 a BreMdacn,uJfoahctnurHin>g, ICnhce*mSisptrsi--ngIfniedluds,tMriaalsHs.and Cleaner; Hair and Scalp Preparations.

is 1954 National Safety Congress t rales on removing the work from the ma chine, transferring it to another and pre pares to repeat the operation.

76 3955 Xationa!

Industrial Hygiene Digest February, 1956 INDEX Absenteeism, human relationsapproach 297 Adtptc nitrile, toxicity 2l3, 214 Aerosols, commercial, ealetyfactor* 233 Aging problems 298 psychological aspect* 299 Airborne particles direct photomicrography 278 Air pollution Lon Angeles survey 285 prevention, water pollution from 286 wind tunnel studies 288 Alumina, effect on longs 253 Aniline, ettcct on nervous system 228' Arthritis, not Iroax pneumatic tools 260 Asbescosts and inng cancer 250, 251 Atomic bomb, eye effects 267 Baiter1* rhinitis and asthma 254 Barium stiiCate dust, radioactive pulmonary effects 265 Bonaene exposure estimation by sulfate and phenol tests 224 Boranes, toxicity, comparative 194 dactinium, toxicity, effect oi BAL 198 ctartion, atmospheric determination oi soorce 287 Carbon disnlllde poisoning, antidotes 222 Carbon dusts, tissue reactions 252 Carbon monoxide determination in air 268 blood 269 Carbon monoxide poisoning late eiiecta 195 Cardiac disability and death compensation aspects 187 Chlorine, detection methods 270 Chromium workers, gastric ulcer in 199 particle six* and petrographic analysis silica content and haxard Cyclones, efficiency, theory DDT on sprayed surfaces removal (or determination Deafness, occupational, problems Dermatitis, sensitization by remedies Dioxane poisoning, blood nitrogen Dust deposition on conveyor roads escplosiona tn lungs, particle sixe Dust collector, wet tor lightweightAggregate dusts Dust counting, electron microscope Dust sampling and analysis, method principles y.

.41 These figures show strikingly the Increase In rates between 1951 and 1952, sad this Increase Is particularly marked aftor age 50, confirm* |*| an observation previously tnado, to the effect that until receutly lung cancer has probably been under-diagnosed In the older age groups In the general population.

EXHAUST SYSTEMS, GENERAL ij COMFORT VENTILATION The New York State Department of La bor has examined the economics of air re circulation in detail0 General Ventilation Contaminant control by dilution Although local exhaust systems have sev eral inherent advantages, as compared with general ventilation--for example, removal of contaminant before it spreads throughout the room, economy of air flow, less heat loss, etc--there are some operations where local exhaust systems are impracticable With such operations the contaminant is usually a solvent vapor, but occasionally it is a fume or dust Local exhausts may be unseated because there is a multitude of sources of vapor, or the source may be ex tensive as in a large coating process, or the amount of ductwork to connect all die nec essary hoods may be forbidding Such operations can sometimes be con trolled by diluting the general room at mosphere with outdoor air fast enough to keep the concentration of toxic vapor m the room air within safe limits Solvents appear in synthetic varnishes and lacquers, in cements and adhesives, m liquid coatings for fabrics and other mate rials, in cleaning operations, and in many other processes The basic purpose of sol vents in these applications is to evaporate into the atmosphere, leaving behind some physically changed substance, which is the desired end product Thus, the very heart of the process involves polluting the air with vapor.

PERSONAL PROTECTIVE EQUIPMENT protective devices must be considered as op tical instruments, and they should be care fully selected, fitted, and used Contact lenses should never be considered as being a replacement for safe protective equipment for the eye Workers have had their eyesight permanently unpaired and have even been blmded by corrosive chemi cals or small particles getting between their contact lenses and their eyes The amount of money spent to acquire and fit eye protective devices is small when measured against the savings afforded by the protection given For example, the pur chase and fitting of a pair of impact-resist ant spectacles may cost from 5 to 15 dol lars, compensation costs for a lost eye may range from 1,600 to 10,000 dollars If the eye protection program is super vised, directly or indirectly, by an industrial ophthalmologist, on either a full-time or consultation basis, there will be an addition al return from proper utilization of the visual abilities of the work force Unfortunately, there is no impartial test ing laboratory set up to approve eye protec- Fig 36-7 Earmuffs being worn in con junction with a respirator and tinted safe ty glasses.

TMf m FEDERAL SECURITY AGENCY PUBLIC HEALTH SERVICE Washington 28, D.

wftvj considered proper.

-2-2 -GcipsTiiiTd Cospa titivs I'.

jIgnition Furnaces for (Sintering Machines NjWeirton Steel Co, and Great Lakes Steel Co.

MINUTES OF THE ANNUAL MEETING OF THE STOCKHOLDERS OF THE M.