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4400 Fifth Aver.ua Pittsburgh 13, Fa, REPORT CF ' IBEUMISAHr DUST INVESTIGATION FOR ` ASBESTOS TEXTILE EJSTXIUTS JUNE, 1947 By W.C.L.

HW8B-0B09952 -* FOUNDATION FACTS This nows-lettor Is issut'd monthly to member companies and trade associations Affiliated with Air Hygiene Foundation.

Con fi dential Mellon Institute of Industrial Research UNIVERSITY OF PITTSBURGH Hllll* tat 4 PROGRESS REPORT for the *eek ended Y.arch Tl, 1345 I..

Con fujcntial Mellon Institute of Industrial Research PROGRESS REPORT for the ;T-I v: T Subjects under which report is to be indexed mr.

Confidential Mellon* Institute of Industrial Research UNIVERSITY OF PITTSBURGH Recai jkhfl PROGRESS REPORT for the week ended January 5, 1946 INDUSTRIAL HYGIENE FOUNDATION Subjects under j which report is j to be indexed J Industrial Fellowship No. 259-ML 5 copies made: 1 - Mellon Institute 2 - Industrial Hygiene files .

Confidential tf`UB*H L | Mellon Institute of Industrial Rjesearcii ll|l1|1lIIi University of Pittsburgh PROGRESS REPORT for the--swflk-------------- ended---------- 0jHohei_4_19*l_ INDUSTRIAL RYOTTH?

HEATING VENTILATING AIR CONDITIONING CUIDE 1940 The factors in Table 4, as corrected if necessary, are satisfactory for regions having 3500 to 6500 degree-days per heating season.

HEATING VENTILATING AIR CONDITIONING GUIDE 1940 Standard9 in the formulation of its ratings and has compiled a tentative standard of heating effect allowances for various enclosure heights to be included in the ratings by its members.

HEATING VENTILATING AIR CONDITIONING' CUIDE1940 I B 1 CHAPTER 25.

HEATING VENTILATING AIR CONDITIONING GUIDE. 1940 ments of the same design of coil depending upon the relative importance of space, cross-sectional area, and air resistance.

HEATINC VENTILATING AIR CONDITIONING GUIDE 1940 whenever the relative humidity rises above some predetermined point such as 60 per cent even though the thermostat is satisfied.

HEATING VENTILATING AIR CONDITIONING GUIDE 1941 Flow meters using an orifice, Venturi tube, flow nozzle, or Pitot tube as the primary device are made by a number of manufacturers and can be obtained in either the mechanically or electrically operated type.

HEATINC VENTILATING AIR CONDITIONING GUIDE 1941 3.

HEATINC VENTILATING AIR CONDITIONING GUIDE 1941 A diagrammatic representation of a typical steam ejector water cooling system is shown in Fig. 3.