29th ANNUAL MEETING The 29th Annual Meeting of the Membership of Industrial Hygiene Foundation was held as usual during the third week of October, to review pro gress of Foundation programs and to elect the Board of Trustees.

BOILERS AND UNFIRED PRESSURE VESSELS 6 Kettles should be filled only to a point where undue splashing will not occur when the contents are heated or agi tated Splash guards or loose covers may be used Evaporating pans ordinarily are shallow pans containing steam coils which, when the pans are in operation, are immersed in the material being treated The hazard to be guarded against is permitting the cod to become exposed, in which event the mate rial may be overheated or ignited and fire or explosion result Safe practices include 1 Pans should be continuously attended as long as they are in operation 2 After each use the pans and cods should be thoroughly cleaned 3 After steam is shut off in the coils, the coils should be drained to prevent the product from being drawn into lines when steam condenses and creates a vacuum Installing a vacuum breaker would also prevent this References American Society of Heating, Refrigerating and Air-Conditioning Engineers, 34S East 47th St, New York City Guide and Data Book (Fundamentals and Equipment) American Society of Mechanical Engineers, 345 East 47th St, New York City ASMS Boiler and Pressure Vessel Code American Standards Association, 10 East 40th St., New York City Safety Color Code for Marking Physical Hazards and the Identification of Certain Equipment ZS3 1 Scheme for the Identification of Piping Systems A13 1 Bregman, J I Corrosion Inhibitors New York Citv The Macmillan Company 1963 Carmichael, Colin, ed Kent's Mechanical Engineers' Handbook, ]2th ed New York City, John Wiley fk Sons, Inc, 1950 Combustion Institute, Union Trust Building, Pittsburgh, Pa (General ) Compressed Gas Association, Inc, 500 Fifth Ave, New York City Cylinder Service Life Seamless, High-Pressure Cylinders Pamphlet C-5 Expansion Joint Manufacturers Association, 53 Park Place, New York City (General) Hansen, E G "Safety of High Temperature Hot Water" Actual Specifying Engineer (Medalist Publications Inc ), 2 72-79 (July 1959) Institute of Boiler and Radiator Manufacturers, 608 Fifth Ave, New York City (Oeneral ) Lieberg Owen S High Temperature Water Systems New York City, The Industrial Press 1959 Marks, L S, and Theodore Baumeister, ed Mechanical Engineers' Handbook, 6th ed New York Citv McGraw-Hill Book Company, 1958 National Association of Power Engineers, 176 West Adams St, Chicago, 111 (General ) National Board of Boiler and Pressure Vessel Inspectors, 145 North High St., Columbus, Ohio National Safety Council, 425 North Michigan Ave, Chicago, 111 Compressed Gases Safe Practices Pamphlet No 95 Industrial Data Sheets Cleaning With Hot Water and Steam Data Sheet 238 Low Voltage Extension Light Cords and Systems Data Sheet 316 Maintenance of High-Pressure Gate and Plug Valves Data Sheet 440 Unfind Pressure Vessels and Piping in Pulp Mills Data Sheet 243 Vessel Entry in the Rubber Industry Data Sheet 458 Northcroft, G Steam Trapping and Air Venting New York City.

KAISER GYPSUM 1 FURTHER INFORMATION, CONTACT n.

// > .j (S 6 fel o6 C=J Industrial Hygiene Digest Health ambulatory medicine in a teaching hospital 931 cnrollces in Youth Corps 936 of the university and the specialist 932 Heart, your heart has nine lives (bk. rev. ) 927 Hepatoma, induced by thorotrast 1008 Hospital(s) ambulatory medicine in teaching 931 Industrial medicine Sappington Memorial Lecture 1966 933 Kerosene,pneumatocele following ingestion 986 Laser(s) histology of human ocular coagulation 1009 Lead poisoning, nephropathy in chronic 984 Lightning, protection fromfbk. rev, ) 929 Low back pain in men receiving workmen's compensation 947 sacroiliac lipomata as cause of 946 Lung(s), effect of acute hypoxia 942 Medicine, ambulatory, in teaching hospital 931 Menthol urticaria 967 Methane, monitoring in the atmosphere 1015 Nocardiosis, subcutaneous Nursing, selected knowledge or skill basic to occupational health 969 928 Occupational health basic knowledge and skill for nurses 928 Ophthalmology cerebro-ocular effects of carbon dioxide poisoning 975 human ocular laser coagulation 1009 photocoagulation from x-rays 1010 Oxygen atelectasis in subjects breathing 100% oxygen 934 toxic effects of high concentration 980 Ozone photochemistry in moist atmosphere 978 Paraffin' waxes 3, 4-benzpyrene in highly refined 973 Pennsylvania, farmer's lung in eastern 996 Phosphors, skin temperature recording 974 Pine pollen possible relationship to sarcoidosis 997 Pneumatocele formation from petroleum hydrocarbons 986 Pneumoconiosis Pennsylvania anthracite miners 1000 right ventricular hypertrophy in coal miners 999 Polonium-210, activity in lungs of smokers950 Propylene oxide effect on spice fumigation 987 Psychiatry in Canadian Air Division 937 mental health with limited resources 926 Pulmonary atelectasis in subjects breathing 100% oxygen 934 calcification in aspergilloma 955 effect of acute hypoxia on capillaries .942 27 October.

1967 National Safety Congress This Is particularly dramatized by the ex marked enough to prevent further employ perience of the cement masons, whore labels ment At this point cause-effect relationships ore often so vague os to make It impossible are obscure.

MEMBERS OF THE "-'N FARM CONFERENCE NATIONAL SAFETY OOUNaL 1967-68 4 Dn.

Industrial Hygiene Digest December. 1967 1155 Fatal Opportunistic Fungus Disease.

Figure 4 illustrates some of these conditions: A is normal.

able where a vendor comes into the plant with a trailer completely equipped and stocked to fit and sell safety shoes These shoes are normally offered at an industrial price It is difficult to determine when manage ment should pay the cost of personal pro tective equipment and when workers should Factors are the probability and expected severity of injury, the willingness of work ers to wear the equipment, its length of life, and the degree to which it may be depreci ated by nonoccupational use For example, the welder's helmet is almost universally supplied by management, for the job could not be performed at all without it Work gloves sometimes must be purchased by the user On the other hand, welder's or other special purpose gloves are usually considered as being a necessary part of the job work tools and are issued free No matter what decision is made, it remains management's responsibility to develop and enforce the program This is one of the mam themes in the first eight chapters of this Manual Head Protection Although every worker should be encour aged to use his head to absorb knowledge-- he should not use it to absorb blows Men exposed to head hazards must be provided with head protection Safety hats Safety hats (or helmets) are ngid headgear of varying matenals designed to protect the workman's head--not only from impact but from flying particles and electric shock or any combination of the three Helmets (see Fig 38-2) have been classi fied into two types (a) full bnmmed, and (b) brimless with peak The types have been further broken down into four classes Class A, limited voltage resistance for general ser vice, Class B, high voltage resistance, Class C, no voltage protection (metallic helmets).

HORN ' . " .</ "iv:.- .: !'

Section 215.126 Carapllance Plan a) The.owner or operator of an cal si ion source subject to Section tlS.ltS(i) shall submit to the Agency a coup!

4--Inspection and Control Procedures By carefully selecting a representative sample of persons, the safety professional can judge the level of safety performance of the entire system at that particular time The object is to discover factors which have con tributed to an actual or potential loss-produc ing accident What the technique can do A two-year study evaluating the usefulness of the critical incident technique was recently conducted at a large manufacturing plant in New Jersey The 187 different unsafe acts and conditions that were identified revealed that the causes of no-injury accidents were the same as the causes of injury type acci dents and that future injury type accidents can be predicted from an analysis of "near-misses " It was also found that 52 percent more unsafe acts and conditions were revealed by the crit ical incident technique than were identified by the accident records compiled during the two-year period studied The results of this study show that 1 The critical incident technique dependably reveals causal factors m terms of errors and/or unsafe conditions that lead to in dustrial accidents 2.

/ // r September 21, 1966 Or.

we are attempting to force a negligence concept into the frame work of a strict liability concept.

Years 1962 - 1971 1962 - 1962 .