Tetraethyl lead in gasoline has been a major factor in making possible the tremendous power of our airplane and automobile engines, while litharge is used to remove corrosive sulphur trom motor fuel, which otherwise would shorten the life of these engines.

Tetraethyl lead in gasoline has been a major factor in making possible the tremendous power of our airplane and automobile engines, while litharge is used to remove corrosive sulphur trom motor fuel, which otherwise would shorten the life of these engines.

., Chicago In discussing the determination oi injuri ous dusts, fumes, gases and vapors, I am very sure that you are not interested so much in a meticulous dissertation on such phases of the subject as whether the loga rithm of the reciprocal of the hydrogen ion should be 9.5 or 9.0 for the determination of lead by the dithizone method, but rather in a discussion of this matter along broad tines, pointing out what types of potentially injurious materials should be looked for, whether determination of them is in order, a brief discussion on some of the more im portant and common methods oi determina tion, and interpretation of the results ob tained.

' .O'- OV.- "0| QUEBEC ASBESTOS MINING ASSOCIATION "*Vi: ' Simm "o:,ol -} lllSBiiliilAicU: leuur-o ': !

FILENAM E: Flintkote (FLK) DATE: 1968 Sept DOC#: FLK056 DOCUMENT DESCRIPTION: Internal Report - Special Summer M eeting Quebec Asbestos Mining Association Hi.

Quebec Asbestos Mining Association WO GRAND*-A11 ft BT -- SWTE ttO % OOQEC A OUE.

Dutch Boy red-lead is pure red-lead.

THE marked increase in motor traffic since 1900 has resulted It is believed that Koebig's procedure is of questionable value in ever-increasing demands for suitable materials for high since, on subsequent drying, it w7ould lead to the simultaneous way and street traffic markings to promote safer driving.

THE marked increase in motor traffic since 1900 has resulted It is believed that Koebig's procedure is of questionable value in ever-increasing demands for suitable materials for high since, on subsequent drying, it would lead to the simultaneous way and street traffic markings to promote safer driving.

i&<B1Pa@Sa 26th National Safety Congress NATIONAL SAFETY COUNCIL, Inc.

i&<B1Pa@Sa 26th National Safety Congress NATIONAL SAFETY COUNCIL, Inc.

SAFETY NEWS Published WASTE and CONTAMINATION -- Both Are Eliminated!

SAFETY NEWS Published WASTE and CONTAMINATION -- Both Are Eliminated!

FILE NAME: Metropolitan Life (ML) DATE: 0000 DOC#: ML013 DOCUMENT DESCRIPTION: Met Life Documents, Part 4 GENERAL OFFICES REPUBLIC BU'LOING A .ItiAtSmKt T B O l.T A rro c n v April 7, 1954 NMDerwe.trYAo.oproJkl.

Cooke 16 in 1924 reported a case of pulmonary asbestosis Pancoast and Pen- dergrass 83 in 1926 examined a group of seventeen asbestos workers Since then other investigators have reported individual cases of asbestosis but it was not until 1930 that Merewether and Price 74 published the results of a study on a group of asbestos workers together with some evaluation of the degree of exposure Lanza McConnell and Fehnel 66 have recently published a preliminary report of a comprehensive survey on this subject The industry in this State consists mainly of several fabricating plants engaged in the making of asbestos cloth brake lining insulating tape asbestos rope and wick and other miscellaneous prod- ucts According to the 1931 Pennsylvania Industrial Directory 61 there are approximately two thousand persons engaged facture of asbestos products in Pennsylvania The nature of asbestos dust is such that many of in the manuthe standard procedures used for other dusts could not be used Changes in the accepted standard method were required in the collection count- ing and particle size determination of the dust In Part I of this report 41 the method of collection and counting of dust en- countered in this study was described and summarized Samples of dust taken in plants for fabricating asbestos products were collected by a modified form of the standard method using a wv per cent U.