rwtaAz .LKt aedhroEe}xpMo.sDu,re and Lead Poisoning .................. 202 XVI.

Polyvinylchloride varying in molecular weight from 45,000; 70,000 to 105,000 stabilized with one percent of lead stearate was used. .

., 1024 Armstrong Cork Company, 1025 Celotex Corporation, The, 1028- 1029 Eagle-Picher Lead Co., 1032 Ehret Magnesia Mfg.

It is entirely reasonable to suppose that considerable of our pigmsnts are polymorphic and that a detailed study from this point of view could lead to the discovery of new products with useful pigment properties* sagGffimsj 1* 5-H022SH2 Anisole HAS-D exists in at least two crystal phases.

Polyvinylchloride varying in molecular weight from 45,000; 70,000 to 105,000 stabilized with one percent of lead stearate was used.

Idaho Hazy-lead Gold Hines Corp.

CLAIMED PRIVILEGED BY OCF SEQUENCE OF THE ACGIH TLV FOR ASBESTOS Year 1946 - 1961 1962 - 1967 1968 - 1969 1970 1971 Listing MINERAL DUSTS Asbestos - 5 mppcf MINERAL OUSTS Silicates (less than 11 crystalline silica) Asbestos - b mppcf MINERAL DUSTS SIlicates~Tless than 11 crystalline silica) **Asbestos - 5 mppcf **NOTICE OF INTENDED CHANGES Asbestos - 12 fibers/ml > 5 jj in length,J) or 2 mppcf1^ J) As determined by the membrane filter method at 430X phase contrast magnification.

Rock wool bats g Lead slag 10.

jlA T E D e t h y l c o m p a n y l i m i t e d JlegistemdOffice:THEADELPHI, LONDON,WTC2 IJdressall communications untilJurthernoticeto- ARTILLERY HOUSE, ARTILLERY ROW; LOMDOIsT, S.l Jkrectors* f f t t e f f l OM: A B B E Y 3 9 7 4 - 7 N .A .G A S S l_.N .H A M IL T O N (U .s.A .)

O T o Q S S ftfr?

Chemical Safety Data Sheet SD-14 PROPERTIES AND ESSENTIAL INFORMATION FOR SAFE HANDLING AND USE OF TRICHLOROETHYLEN ADOPTED 1947 FIRST REVISION 1948 SECOND REVISION 1956 Chemicals in any form can be safely stored, handled or used if the physical, chemical and hazardous properties are fully under stood and the necessary precautions, including the use of proper safeguards and personal protective equipment, are observed. tjftlNC rV---- iLo VeAumW/fq V_fa` Manufacturing Chemists' Association, Inc. ) 625 Eye Street, N.

mem PLAINTIFF'S EXHIBIT ET-32 INSTRUCTIONS FOR THE INSTALLATION, CARE AND OPERATION' _ --OF-- - Elliott I Type GY Mechanical Drive Turbines 1- INSTRUCTION BOOK No. 60 JUNE 1943 !

The expansion of nitroglycerine plants, however, called for more sheet lead than could possibly be spared from more essential war uses.

27/>fl MOODY'S MANUAL OF INVESTMENTS 194] 1940 Analyaia of Operation, %% S:\lev .................-------------- ------- ---------Lost.-.

Tale has a characteristic soapy feeling and a pearly lustre It may be pure white silvery white gray or green and when impure yellow brown or reddish The most common commercial variety is a massive foliated or granular type but it may also occur in a micaceous or in a fibrous form Soapstone is a closely related substance being essentially an impure talc and when pulverized it may be used for the same purposes Tremolite which is a calcium magnesium silicate changes over to talc It may be mined with it and subsequently ground and sold as talc GEOGRAPHICAL DISTRIBUTION The United States produces about 65 per cent of the world's supply of talc the leading states in its production being Vermont New York California North Carolina and Georgia THE INDUSTRIAL USES OF TALC According to the Minerals Year Book 1938 of the United States Bureau of Mines the use of talc and soapstone is steadily increasing Ladoo states that at least 60 different uses for talc have been noted though most of them are of minor importance Its value depends chiefly on its usefulness as a filler inert extender dusting powder and absorbent In 1921 according to Ladoo the marketed ground talc production in this country was industrially distributed as follows paper 38 per cent paint 23 per cent prepared roofing 18 per cent rubber 9.5 per cent textiles 4 per cent toilet powder 2.5 per cent other uses 5 per cent Siegal Adelaide Ross Smith and Leonard Greenburg JANUARY 1943 12 William talc is eight weeks No significant tissue changes were The other uses for which ground seen a filler in soap in foundry adapted are as in compounds Bethuneinin 1935 was able to produce pleural by blowing commer- in adhesions cats and dogs Miller and facings in insulating textiles cavity Miller adhesions dry lubricants as a filler in cotton cial talc into the pleural found that in the dressing and manufacture of leather leather Sayers quoted bei lnj oewcting adhesions dusts into polishing cleaning cleaning and manufacture agent for rice were produced by injecting various such adhesions as a coffee beans in making makinmg aking etc the peritoneal cavity but that behavior of peas peas , coffee beans not related to the subsequent peanuts windowshade colored crayons as a filler filler were a dusting agent in making candy the dust having observed granulo- = cloth as ingredient of Fienberg in 1937 of talc experimented chewing gum etc and as an mas from the surgical use mice and insecticides concrete plastics and with the injection of this substance in these Since 1921 there has been a marked in- obtained subcutaneous granulomas in in its use in the ceramic industry animals animals i crease thousand more tons of talc and Miller and Sayers in 1936 reported studies talc included Fourteen sold in 1937 than in which talc included was included among among thedusts dusts | related materials were this of this increased in which intraperitoneal reaction in guinea pigs intraperitoneal 1936 and about 10,000 tons where whose found that it produced an amount went to the ceramicceramic induindusstrytry where was studied They is the injected } amount chiefly the constituent of glazed used as constituent of glazedglazed inert reaction That to say did it initiate a talc is chiefly dust was not absorbed neither wall tile In the signifi- interpreting cellular proliferation OF the authors conclude OF LITERATURE ON THE EFFECTS cance of inert reactions REVIEW DUST that such dusts should be considered as poten- TALC TALC DUST Experimental harmful Studies During the last tally summarizing experimental work on Gardner Laboratory said a certain amount of experimental ten years has been reported but silicate dusts at the Saranac Laboratory Symposium Fourth work with talc dust of the in- at the Saranac few silicates like true on reviewing this literature most on Silicosis 1939 have are found to have minerals halation experiments tale and some of the clay of the lungs provoked been of insufficient duration to be helpful chronic inflammation after in regard to the probable effect of long con- but this reaction has tended to retrogress of to a stage industrial industrial tinued several months No progression B tinued industrial exposure fibrosis has been observed within periods In 1931 Haynes included talc in a series of guinea pigs true and there is no indication of one to two years will occur dusts studied for their reactions on were dusted two hours daily except Twelve pigs no that the progression an experiment in Policard in 1939 reported in- Sunday for a fortnight The author saw which he dusted white rats with foliated sign of pulmonary damage but found that removal occurred un- dustrial talc three hours a day for twelve days of the exposure was high He bronchial and lymHpehatciocncludes that the sub- The intensity irritating to the upper usually briskly talc are of a low degree found that the dust was a marked dysp- stances dissolved from obnoxious to neigh- respiratory tract and producesdacrificed two and of toxicity but sufficientlythe removal of cells nea In the lungs of animals he found dilata- boring tissues to cause six days after inhalation began and exuda- containing them the cellular re tion of bronchi acute emphysema Many animals died spontane- St^...berin 1934 studying of lymph nodes to various dust sus- tive alveolitis and foci of with pulmonary congestion sponse introduced into the lymphatics found ously The short duration of the pensions bronchopneumonia that tale caused no apparent cellular prolifera- tion within the lymph nodes after five days reported After 108 days the nodes were still normal and granulomatous showed no increase in connective tissue peritoneal Fossel in 1935 reported experiments in which guinea pigs were exposed to the inhalation of tale for one hour daily over a period of did not permit any conclusion con- ecxeprenirnigmetnhtes possibility of pulmonary fibrosis McCormick and Ramsey in 1941 in- postoperative tale in 2 cases flammation caused by intra- Schulz and Williams in 1942 injected VOL 49 peritoni comme nate ral ranging cases 1 holding cytic c type P fibrosis and lim terial develop contain and trei Clini cupatio this co and u Dalla talc wc Polic question the hur time a lished t tion of t of forty years in Thorel taining of certa tions m accumu nodular present of tuber In 19 stated t gerated opinion Zanel the conc to the fa dangero moconic Mere rubber t two yea ANUARY 143 anges were uce pleural g commerMiller and adhesions dusts into adhesions chavior of d granulo- erimented mice and in these ted studies the dusts umea pigs oduced an we injected initiate a the signifi s conclude as poten tal work on atory sand Symposium s like the erals have the lungs gress after after a stage of hin periods ' indication periment in olated inwelve days high He the upper arked dysp dysp ed two and and dilataand exuda| spontaneand foci of ation of the clusion con- iry fibrosis 41 reported matous in- ected intra- The Dust Hazard in Tremolite Talc Mining 13 , No.