lii-V U ' 190 CHAPTER 9 1956 Guide Table 7.

250 CHAPTER 12 1956 Guide outdoor air supply equals or exceeds the amount of natural infiltration which would occur without ventilation, the natural infiltration may be neglected. 9.

340 CHAPTER 14 1956 Guide door, and by leaks in the setting, whereas the gases leave only through the outlet.

806 CHAPTER 35 1956 Guide Table 1.

900 CHAPTER 39 1956 Guide An electric controlling element is used in several of the common types of control action.

988 CHAPTER 43 1956 Guide dissolved solids as sludges, rather than as scale which is, in most cases, more ob jectionable

1130 CHAPTER 50 1956 Guide .

1164 CHAPTER 52 1956 Guide was recommended to take its place.

fRi*1 TTi. '` *K% ` ****} - *2' - '' 'A-v *#>* r* . % * ^ *

Operation and Maintenance of Water Distribution Systems* THE GENERAL SCOPE of the term water distribution system is very broad and would normally in clude distribution mains, valves, hy drants, service connections, meters, booster pumping stations, storage fa cilities. maintenance shops, etc.

VENDOR NAME Cape Blue Mines (Pty), Ltd.

:iti- Heating Ventilating Air Conditioning Guide 1957 Fuel oil (continued) viscosity, 354 weight per gallon, 356 Fumes, 4, 151 Furnace, furnaces, 4. 421 capacity, 423 casings, 425 cast iron, 423 design, 409, 426 efficiency, 426 duct, 399 fan, 422, 423 filters, 422 forced warm air, 422 gas-fired units, 397 grate area, -425 gravity warm air, 422, 434 beating surface, 424 heavy duty, 423 humidification equipment, 427 materials, 413, 428 mechanical warm air, 422 controls, 496 ' cooling methods, 503, 1204 dampers, 477 ducts, 478 fans, 422 filters, 422 method of designing, 426 motors, 422 ratings, 424 oil-fired units, 423 prime heating surface, 424 rating, 418, 424, 425 steel, 423 stoker-fired units, 380 types, 421 volume^ 4,352,386,389 warm air, 421 G Gage, gages . _ draft, 1224 pressure, 7,1223 sheet metal, 807, 808, 1109 Garage ventilation, 258 Gas, gases, 152, 158 appliance rating, 400 atmospheric, 152, 164 burner controls, 401 burners, 397 calorific value, 360, 361 central heating, 396 chimneys for heating, 448 classification of, 361 combustion of, 362 equipment, commercial, 402 equipment, industrial, 402 equipment ratings, 400 estimating consumption, 467 expansion factor, 81, 82 flammable, 157 flue, 370 analysis, 372 dew point, 376,1064 loss, 373, 375 heaters, 431 liquified petroleum, 359, 362 manufactured, 359, 361 mixed, 361 natural, 350-361 perfect relationship, 27 pipe size, 401 solubility, 1051 space heaters, 398, 431 wall heaters, 399 Gaseous fuels, 359 calorific value, 360, 361 classification of, 360, 361 combustion of, 362, 399 i maximum carbon dioxide values, 371 products of combustion, 366, 368. properties of, 360 specific gravity, 360 theoretical air requirements, 368, 370 typical analyses, 360 Gas-fired appliances, 396 boilers, 396 combustion process, 399 controls, 418 conversion burners, 397 furnaces, 397 * measurement of efficiency of combustion, 399 pipe size, 401 ratings for, 400 sizing heating plants, 401 space beaters, 398 Glass coefficient of transmission, 212 design tables, 311-320".

124 CHAPTER 6 1957 Guide nearly horizontal.

130 CHAPTER'6 1957 Guide Industry, by F.

270 CHAPTER 12 1957 Guide average wind velocity from December through February is 15 mph or higher in only 7 of the cities listed and'Column 9 shows that a wind velocity of 15 mph did not occur in any city listed for temperatures equal to or lower than those shown in Column 8 for the years 1935-1939.