Document Rp8zV4JoK2KmrRxnG44vmK8rB

55 can, as can vary no doubt, y on airto which ; different ie greater, iucts have lth of the Standards >e suitable m against iistinction should be ms arising ; indicated nheliomas s of fibre at present haling the to control rocidolite. standards quirements , a known dy of data i the correj a grasp of ions of the krms of the lnendations committee as not the lem was to rol. Where mount and r to achieve as the cube ventilation g clown the ; possible to 2 i * \ % a 3 Hygiene standards for asbestos IS grasp more firmly the consequences of adopting particular hygiene standards. This kind of information is needed throughout the field of asbestos dust control so as to be able to weigh up the costs of achieving high air cleanliness. This does not reduce the choice of an air quality standard to a mathematical equation, nor does it avoid the need to exercise wise judgment in the choice of stan dard. However, the judgment can become a little less arbitrary than at present. REFERENCES Aver, H. E., Lynch, J. R. and Fanney, J. H. (1965) Ann. N.Y. Acad. Scl. 132,274. Committee on Threshold Limits (1968) Supplemental Documentation of Threshold Limit Values. Trans. Am. Conf. Governmental Industrial Hygienists 1968, p. 188.1014 Broadway, Cincinnati, Ohio, U.S.A. Committee on Threshold Limits (1969) Threshold Limit Values for 1969. American Conference of . Governmental Industrial Hygienists, 1014 Broadway, Cincinnati, Ohio, U.S.A. Dreessen, W. C., Dalla Valle, J. M., Edwards, T. I., Miller, J. W., Sayers, P. R., Eason, H. F. and Trice, M. F. (1938) A study of asbestosis in the asbestos textile industry. Publ. Tilth Bull., Wash. No. 241. Lane, R. E., Barnes, J. M., Hickish, D. E., Jones, J. G., Roach, S. A., and Kino, E. (1968) Ann. occup. H)'g. H, 47. Ministry of Labour (1967) Problems arising from the use of asbestos. Memorandum of the Senior Medical Inspector's Advisory Panel, HMSO, London. Schall, E. L. (1965) Ann. N. Y. Acad. Sci. 132,316. t ft