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 .

1076 X. where CHAPTER SO , ' 1953 Guide' Vm =' velocity,- feet per minute. . * -- velocity pressure (Pitot tube manometer reading), inches of water. p = density of air, pounds per cubic foot. .Since, the velocity in a duct is seldom uniform across any section, and since a Pitot tube reading indicates a velocity at only one location, a traverse is usually made to determine the average velocity so that the flow can be computed.

C c rlily This Copy To He A True and l-xuel Copy o f die O rin iim l House In die C.ime-.oe M ellon U n ive rsiiv Archives- Confidential Approved.

m -i Safety Newsletter iuZUJX Chemical Section CHEMICAL INFORMATION SHEET (Tentative) ISiH ^ 0 The Chemical Section is developing a number of chemical information sheets on a large number of substances.

ElKins, iiervey U.

American Oil Road P.O.Box 1957 El Dorado, Arkansas 71 731-1957 T ''y I SEPTEMBER 20, 1989 PPG INDUSTRIES, INC.

Repeat Order COEDS Caro Type 4 E3 Vlita Chemical Company 10 yisw12/07/89" it-is I Na. of -- ] ao-n ] , CSft CoO. 1.