- **.<!

/ WITTENOOM GORGE HOSPITAL BOARD iA^OmOMtndMwitwotioi m*eutor 1 Attarautar WtttoMM 6w|* W.A. 13JUL tt53 |10th July, 1953.

WIT.

Heaters, Water The Patterson-Kelley Co. 101 Park Avenue New York City Preheaters, Heat Exchangers, Headers for Chemicals, Gases, Oils.

I PLAINTIFF'S EXHIBIT GP-390 I I P/b/?

<*<S'Tl) GOODfYEAR > NEWS BUREAU AKRON.

CONFIDENTIAL anglogold DUST MANAGEMENT FACT SHEET Historical Information Konimeter sampling used to determine dust concentrations (parts of dust per ml of air) from + mid 1950's to late 1980's.

M.V.S. - January, 1955 1 THE CONSOLIDATION OF FOOTWALL DUST AT VliAtPONTEIN ' GOLD.MINING COMPANY LIMITED By B.

1 f 'V State nlng Engineer, Mims Pepartaeat, PERt*.

108 CHAPTERS 1950 Guide series or in parallel.

276 CHAPTER 12 1950 Guide at 2:00 pjn. during July for an outdoor design temperature 95 F, and an inside tem perature 80 F.

294 CHAPTER 12 1950 Guide REQUIRED AIR QUANTITY THROUGH CONDITIONING EQUIPMENT The procedure, for determining the required air quantity is based upon the thermodynamic principles of Chapter 3 and the use of the Goff di agram supplied with The Guide, or a psychrometric chart.

84 CHAPTER 16 " 1950 Guide DETERMINING CHIMNEY SIZES FOR THE INDUSTRIAL CHIMNEY If the required performance for a proposed chimney-is-known, and if a chimney-gas velocity is assumed, Equation 3 can be transposed to yield the necessary height, and an equation can be developed for the required diame ter.

990 CHAPTER 48 1950 Guide Fig. 8.

266 CHAPTER 12 1951 Guide determined once the indoor and outdoor design conditions are fixed.