346 CHAPTER 13 1952 Guide - due to the large amount of sensible heat escaping to the chimney.

396 CHAPTER 15 1952 Guide Commercial Standards 11S-44 is a method of rating oil-burning floor furnaces by test.

440 CHAPTER 18 1952 Guide in balancing the air distribution of the system, a damper should be placed in each leader pipe except one, this latter leader preferably being connected to a room heated at all times, such as a living room.

670 CHAPTER 31 1952 Guide Air Duct Design 671 CU FT OF AIR PER MINUTE CU FT OF AIR PER MINUTE' For Volumes of 10 to 2000 cfm (Based on Standard Air of 0.075 lb per eu ft density flowing through average, dean, round, galvanised metal ducts having approximately 40 joints per 100 ft.)

754 CHAPTER 34 1952 Guide tion in performance.

824 .

916 CHAPTER 42 ; 1952 Guide I' film on the. metal surface or to neutralization of the CO* by the alkali in the silicate solution. . -, ..It has been postulated that ammonia,25 cyclohexylamine^' ethylene diamine, and morpholine2.7 will retard corrosion of condensate fines.

HEATING VENTILATING AIR CONDITIONING GUIDE 1953 V An Instrument of Service Prepared for the Profession containing A TECHNICAL DATA SECTION of reference material on the DESIGN AND SPECIFICATION OF HEATING, VENTILATING AND AIR CONDI TIONING SYSTEMS BASED ON--THETRANSACTIONS-- THE INVESTIGATIONS of the Research Laboratory and Cooperating Institutions--' and the Practice of the Members and friends of the Society; A MANUFACTURERS' CATALOG DATA SECTION containing ESSENTIAL AND RELIABLE INFORMATION CONCERNING MODERN EQUIP MENT; COMPLETE.INDEXES to Technical and- Catalog Data Sections.

776 CHAPTER 35 1953 Guide circulating ,water as a result of evaporation; that the water suspended in the tower is surrounded by a film of ah' which is saturated with water vapor and at the temperature of the water surrounded; and that the basic theory of cooling tower operation proposed by Lewis13 and developed by Merkel14 is applicable.

Confidential Approved.

CHAPTER 8 1954 Guide 160 apply a reasonable safety factor to the ventilation estimate without con sideration of the concentrations of gases or vapors that approach the danger point.

672 CHAPTER 31 1954 Guide V0 -- nominal velocity of discharge based on the core area, feet per. minute.

692 CHAPTER 31 1954 Guide Table 2.'

700 CHAPTER 32 1954 Guide hi _,!

976 CHAPTER 44 installation of water economizing equipment since the cost for pumping and the fixed or ownership charges may be in excess of the annual cost for once through condensing operation.