690 CHAPTER 31 1954 Guide outlets are attached either directly to the bottom of horizontal ducts or to special vertical take-off ducts which connect the outlet with the horizontal duct.

848 CHAPTER 37 1954 Guide designed to operate with reasonable efficiency at capacities as low as 20 per cent of normal load.

962 CHAPTER 43 1954 Guide be red lead paint tinted to a black or brown color, black paint made according to Federal Specification TT-P-61, red iron-oxide paint con forming to Federal Specification TT-P-31,. or white or light tinted paint made according to Federal Specification TT-P-40.

968 CHAPTER 44 1954 Guide; eo o 5fc h n P$ SSS agn eng B5s O55 g<sO2 gOgh 3H gg H 190.00 165.00 120.00 90.00 60.00 62.00 60.00 48.00 46.00 44.00 42.00 40.00 :: :___j ts % S.'

1044 CHAPTER 47 1954 Guide Industrial Drying Sections 1045 classified as a convection dryer the principal source of heat is the heated air or other gases circulated in the dryer.

1078 CHAPTER 49 1954 GuidT any house or apartment.

r-* i:,` i; i; I, I; : 'i !

60 CHAPTER 3 1955 Guide.

Air Contaminants 16b CHAPTER 8 1955 Guides 161 I apply a reasonable safety factor to the ventilation estimate without con--; sideration of the concentrations of gases or vapors that approach the danger ^ ing flammable substances, or operating in atmospheres so contaminated, is discussed in Chapter 46. ' '.

(J06 CHAPTER 26 Fig. 5.

740 CHAPTER 32 1955 Guide locities.

,780 CHAPTER 34 1955 Guide therefore, care must be exercised in arranging the duct approaches on the entering and leaving sides of the cleaners in order that the air flow may be distributed uniformly over the cross-sectional area.

842 vohere CHAPTER 36 1955 Guidfe if Cj : /1 = internal film coefficient of heat transfer, Btu per (hour) (square foot of internal tube surface) (Fahrenheit degree). tr -- average refrigerant temperature, Fahrenheit degrees.

1116 .

Heating Ventilation Air Conditioning Guide 1956 Tables (continued) draft in ohimneys, 435 draft requirements of applianoen, 436 duct attenuation. 949, 950- duct combinations, 458, 479 duct caces, 757 duct joints, 756 duct pressure drop; 489 duct sizing, 466, 467, 479, 480, 485; 486. 1044 duct velocity, 747 duct weight, 758 dust concentration, 155 elbow attenuation, 950 elbow equivalent, o09,537,740, 1112 electric beating systems, 966 electric water heaters, 975 emissivity factors, 95, 96, 170 end reflection, 954 environmental conditions, limits, 118 equivalent length of fittings, . <66, 467, 468, 509, 1112 equivalent temperature dif ferentials, 292,294 exhaust pipes for machines, 1044-1048 exhaust velocities, 1042, 1044- 1048 .expansion tank sizes, 550 fabric filters, 798 fan outlet velocity, 776 fan speed, 776 fitting allowance, 468, 482, 509 fitting dimensions, 633-643 - fixture flow, 1106 fixture units, 1106 flammability of gases and vapors, 162 flanged fittings surface, 655 flue gas dewpoint, 365 free convection, 94 friction loss, pipe. 389, 506, 510-515, 538, 540 friction valves and fittings, 509, 537, 1106 fuel combustion, 358 fuel consumption, 456, 457 fuel oil properties^ 342 fumes, concentration, 160 * gas analysis, 348 gas piping capacity, 389 . gaseous fuel properties, 348 glass absorptance, 300 glass transmittance, 300 graphical symbols, 17 heat absorbed, cooling water, 821 heat conductance, 93,101,170- 173,178, 179 heat equivalents, 270 . heat flow walls and roofs, 190- 193, 196-199, 292 heat gain appliances, 316 ooil heat emission, 566 glass, 301, 302 glass blocks, 305^307 - insulated oold pipes, 665 heat loa bare copper pipe, 654 bare steel pipe, 566, 654 . basement, 263 floor, 265 pipe coils, 566 radiation, 96 residence, 271, 273 room, 271, 581 heat pump, 866 heat transmission coefficients, 190 building construction, 190- 200, 292-296 doors, 200 glass, 200 roofs, 196-199, 296 walls, 190-193 water beaters, 1122 hot water demand. 1106, 1115, 1118 Tables (continued} hot water pipe sues, 538, 540 humidities, industrial air con ditioning, 1016-1026 hyjposoopic materials, 1028 incident angle, 287 inertial separator, 796 infiltration through outside doors, 232 infiltration through walls, 228 infiltration through windows, 230 inflammability, gases, 162 inside temperatures, 259, 279, 1016-1026 instantaneous solar beat gain, 301, 302, 304-307 insulation conductivity, 657 insulation factors, 661 insulation thickness, 667, 668 insulation to prevent freezing, 666 insulation, underground, 668 intake velocity, 726 iron elbow equivalents, 537 life of equipment!