896 CHAPTER 42 1951 Guide CLASSIFICATION AND CHARACTERISTICS OF WATER For industrial use there is no accepted conventional classification of water.

478 CHAPTER 20 1952 Guide The control valve may be of the automatic modxdaling 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.

796 CHAPTER 36 1952 Guide of refrigerant which is present in vapor form.

850 CHAPTER 38 1952 Guide - discharge or in the return air, or both, and they may be associated with thermostats or.hygrostats in the conditioned spaces. 5.

886 CHAPTER 40 1952 Guide Sound Control 887 Fiq. 8.

<936 CHAPTER 44 /- )^ * 1952 Gtiide - Table 1.'

1010 CHAPTER 47 1952 Guide class, are usually air conditioned.

1086 1952 Guide Campbell Beating Co., 1124-1125, Barnes A Jones, Inc., 1409 HUMIDITY AND TEMPERA- 1142 C.

W&- j Pel.

230 .

370 CHAPTER 15 1953 Guide chamber design is to provide against flame impingement upon either me tallic or firebrick surfaces.

( 530 CHAPTER 22 1953 Guide inches, and if li in. pipe is used, the friction will be 50 X 12, or find milinches.

892 CHAPTER 41 1953..

1954 ANNUAL .

1040 .