Industrial Hygiene Foundation ndustrial hygiene FOUNDATION ut Mellon In I stitute, Pittsburgh, Pennsylvania, has con tributed greatly to the eniieept that the industrial health program is a management tmi.st.

Sheet Metal Worker Published-by Edwin A.

74 CHAPTER 4 1954 Guide It is convenient in the analysis of compressible flow to introduce the velocity of propagation of pressure impulses or, more familiarly, the sonic velocity, a.

ffl 310 CHAPTER 13 1954 Guide design the air leaves the dehumidifier at 1 to 2 deg higher wet-bulb tem perature than the spray water leaving the dehumidifier, and the difference between the dry-bulb and wet-bulb temperatures leaving the'dehumidifier may be as low as 1 deg.

CHAPTER 21 1954 Guide 508 steam demand occurs, because this maximum demand, creates a slight pressure drop in the service line

Vr ' Industrial Hvgier.e st. lQ.'.fi 1 ~-9 The Bronchoscopic Picture m Sl.i-~ot-:hercu.

1008 $ o pa p' < S Hi 3* S* H o t*2< fe "q CHQ Se 3 co p* O ^ a< H 55 X < H s H S 02 a x S K< S oo os Sfcpfe* *i i 8a t>> 3 "o O0OuS.

1060 CHAPTER 48 1954 Guide tremes of temperature, pressure and humidity, and also withstand contin uous extreme vibration.

140 CHAPTER 7 1955 Guide I' furnished comfort for the operating room workers, but apparently pre-S vented exhaustion of the patient as evidenced by rapid convalescence in'.sj the recovery ward.

164 CHAPTER 8 1955 Gui hay fever season usually represent the number of grains found on 1.8 sq'H cm of a 24-hr gravity slide. 11 Hay fever sufferers may notice the first symptoms when the pollen count fit is 10 to 25, and in some localities the maximum figures for the seasonal y peak may approach 1000 for a 24-hr period-, depending upon the sampling and reporting methods of the laboratory.

438 CHAPTER 18 1955 Guide opening of windows, abnormal heating of the building, poor design of heat ing system, sun effect, and other variations.

516 CHAPTER 21 1955 Guide- Steam Heating Systems THERMOSTATIC 517 high to allow gravity flow of the condensate to the boiler.

560 CHAPTER 23 1955 Guide Table 7.

W a l l T h ic k I ness n . 1 W a l l T h ic k -I j nebs n . 618 CHAPTER 27 1955 Guide Table 1.

630 CHAPTER 27 1955 Guide eludes butt-welding or socket-welding.