810 CHAPTER 37 1953 Guide refrigerant can be taken as equal to the values read from the tables for a saturated liquid at the same temperature.

1 PLAINTIFF'S |I EXHIBlt Air Mail .

1050 CHAPTER 49 1953 Guide FRICTION LOSS IN HEAD IN LBS- PER SQ.

1090 CHAPTER 51 1953 Guide Table 1.

@3 Jd ir--M1 Industrial Hygiene Digest INDUSTRIAL HEALTH NEWS LITERATURE ABSTRACTS MEDICAL ENGINEERING CHEMICAL TOXICOLOGICAL LEGAL - - decision* and trends MARCH, 1954 (Vol. 18, No. 3) C=3 INDUSTRIAL HYGIENE FOUNDATION MELLON INSTITUTE 4400 FIFTH AVENUE PITTSBURGH 13.

Heating Ventilating , Air Conditioning Guide 1954 Vibration, machine* 923 Viscous filters, 753 impingement, 752 Vitiation of air, 111 Volume control, 691 furnace, 364, 371 specific, 10 w 'ail, ntu ____ heat flow through, 187--190,278 heat transfer coefficients, 89, 187-190 infiltration through, 218 time 'ftg of solar- radiation, 300 Warm air gravity beating system, 451 combination carrying ca pacity, 457, 458 Resign procedure, 453, 457, 459 extended plenum, 459 furnace capacity, 401 installation practice, 451,452 standardized combinations, 454 mechanical heating systems, 461 air distribution, 461 automatic control, 405,467 celling panel system, 477 combination of parts, 464 cooling methods, 479,1093 continuous circulation, 472 dampers, 463 design procedure, 464, 465 ducts, 463 fans, 400 filters, 400 furnace, 399 heavy duty, 400 selection, 467 humidification, 405 large systems, 465 perimeter system, 477 pressure drop, 478 registers and grills, 462 standard combinations, 454, 464 panel heating, 477 radiators, 377 Washer, washers, 773 air, 1, 773 cooling. 777 dehunudification, 777 humidification, 775 Water. analysis, 948 atmospheric cooling equip ment, 773, 783 characteristics, 946 classification, 946 coils, 802, 1080 content of radiators, 539 control temperature service, 1085 cooled condenser, 848 cooling tower, 780 common treatment, 945 demand, 1069 faucets, 1068, 1073 fittings, lo6S, 1073, 1074 fixtures, 1068 fixture units, 1068 formed deposits, 945 coal-fired, 1080 solar, 1087 heating, 938, 1080 load, 1077 make-up, 797 maximum main temperature, 776 meters, 1073, 1074 mineralized, 946 properties of, 40 services, 1067 storage capacity, 1077 ___ supply piping, 1066,1067,1076, arrangement, 1085 temperature control, 1085 thermodynamic properties of, 40 treating chemicals, 952, 955, 956, 957, 958, 959 well temperatures, 778 Water vapor, 25, 32-40, 201 condensation in buildings, 201 saturation pressure, 25, 40 specific enthalpy, 4 specific volume, 10, 40 surface condensation, 202 Welding, 605, 616 Wet-bulb temperature (see Temperature), 9, 26, 789 Wet return, 8, 481 Wind, winds forces, 218, 225 due to stack effect, 218 natural draft equipment, 783 selection of, velocity, 240, 241, Window, windows coefficients of transmission, 197 leakage, 219 solar radiation through, 287 ventilatqrs, 589 Winter air conditioning system, 653 comfort zone, 124 freezing equipment, 798 Wound rotor motor, 894 Wrought-iron pipe, 605 Wrought-eteel pipe, 605 Y Year-round air conditioning system, 653, 1091 air flow in, 653,1096 control methods, 654 design procedure, 666 equipment arrangement, 654- 656 installation, 654 location of apparatus, 665, 1095 selection, 663 z Zone control, 654 Zone of evaporative regulation, 115 Zoning. 540, 654 control, 654, 886 reheat, 654 volume control, 655 XXIV CHAPTER 1 Glossary of Physical and Heating, Ventilating, Refrigerating and Air Conditioning Terms Used in the Text Absolute Zero: The zero from which absolute temperature is reckoned.

14 CHAPTER 2 1954 Guide Thermal conductance per unit area, Unit conductance : heat transferred per (unit tiine) (unit area) (degree)........................................................ ...........C C = = _L 9 = * * A RA A(U - Q L Thermal conductivity: heat transferred per (unit time) (unit area) (degree per unit length)...............................................................................................................k J7 Ul --- it) L Surface coefficient of heat transfer, Film coefficient of heat transfer, Individual coefficient of heat transfer: heat transferred per (unit time) (unit area) (degree)...................................... .............................................................................f 9 A / = !

36 CHAPTER 3 1954 Guide 03 S3 Sbc < b.B W* iO<Sf-W iDOt'tnc 4<Ot"OOCk Soc Vw fi* s df sSSSi clgss 300 1SII1 SogSSS OOOOO sst=es ggS2 -- -- " ssssff SSSSSs sssss 5SSSS 1| *^S5 >>J3 OyJ^ S5W Wffl I3 S'?

Industrial Hygiene Digest INDUSTRIAL HEALTH NEWS LITERATURE ABSTRACTS MEDICAL ENGINEERING CHEMICAL TOXICOLOGICAL JANUARY, 1953 (VoL 17, No. 1) INDUSTRIAL HYGIENE FOUNDATION MELLON INSTITUTE 4400 FIFTH AVENUE PITTSBURGH 13, PA.

434 CHAPTER 18 1954 Guide opening of windows, abnormal heating of the building, poor design of heat ing system, sun effect, and other variations.

490 CHAPTER 21 1954 Guide The control valve may be of the automatic modulating or floating type governed thermostatically from selected control points in the building, or it may be a special pressure reducing valve which will maintain the desired sub-atmospheric pressures by continuous flow into the heating main.

CHAPTER 25 1954 Guide s -Unit Heaters and Unit Ventilators 576 577 eral classifications.

CHAPTER 32 1954 Guide 7/z2a8 than that at which the test was conducted, a correction should be made.

1050 .

1112 CHAPTER SI 1954 Guide the observed relative humidity by the ratio of the observed to the standard atmospheric pressure.