Pn 64 Bestmll Gypsum Company FOB GRAHD RAPIDS DATB Septi 1, 1961 from *oli Lab officb ATTENTION OF Mr* J.

DEPARTMENT of labor jjvisior. of Induetriel Hygiene , Engineering Sectioo EXHAUST SYSTEM PUN PLAN NO.

'M ill Founded 1844 asbestos textile institute P. 0.

INTER-OFFICE MEMORANDUM TO AT COPIES TO Vern L.

HWBB-002UU52 rr-** Industrial Hygiene Digest INDUSTRIAL HEALTH NEWS i^ p LITERATURE ABSTRACTS MEDICAL ENGINEERING CHEMICAL TOXICOLOGICAL LEGAL FEBRUARY, 1967 (Vol. 31, No. 2) C=3 INDUSTRIAL HYGIENE FOUNDATION MELLON INSTITUTE 4400 FIFTH AVENUE PITTSBURGH, PA. 13213 03122381 INDUSTRIAL HYGIENE FOUNDATION OF AMERICA.

PLAINTIFF'S EXHIBIT IHF-515 INDUSTRIAL HYGIENE FOUNDATION OF AMERICA.

PLAINTIFF'S EXHIBIT You could trust to luck that your mechanical drive turbines will keep running...

J~M Manufacturing Company, Inc. !

116 CHAPTER 9 1960 Guide Table 7 .....

190 CHAPTER 13 Table 9....

216 CHAPTER 13 1960 Guide by heat gain through dry, sprinkled and water covered roofs (ASHVE Transactions, Vol. 46, 1940, p. 231). 11F.

602 1 Wafer fftap. e 84 85 86 87 88 89 90 95 100 105 110 CHAPTER 40 1960 Guide Toble 3____Sequence of Mechonicol Integration Tower Performance 2 Enthalpy of fifa b* 3 Enthalpy of Air 5. 4 Enthalpy PiS. b'-h. 5 1 h'-h. 6 AB Aih'-hJ 7 X fc'-A. 48.22 49.43 50.66 51.93 53.23 54.56 55.93 63.32 71.73 81.34 92.34 38.61 39.81 41.01 42.21 43.41 44.61 45.81 51.81 57.81 63.81 69.81 9.61 9.62 9.65 9.72 9.82 9.95 10.12 11.51 13.92 17.53 22.53 0.1042 0.1041 0.1038 0.1030 0.1020 0.1006 0.0988 0.0868 0.0718 0.0570 0.0445 0.1042 0.1039 0.1034 0.1025 0.1013 0.1002 0.4640 0.3965 0.3220 0.2537 0.1042 0.2081 0.3115 0.4140' 0.5153 0.6155 1.0795 1.4760 1.7980 2.0517 e Cooling Rang* 1 2 3 4 5 6 11 16 21 26 W.

12 CHAPTER 2 1962 Guide And Data Book W, * humidity ratio of average room air, pounds of water per pound dry air.

560 CHAPTER 55 1962 Guide And Data Book Controls L S.

750 CHAPTER 70 1962 Guide And Data Boole Sow is through a solenoid valve which is operated by a low pressure Boat switch responsive to the liquid level in the evaporator.