MQReMONT CORPORATION INTER-OFFICE CORRESPONDENCE TO: R.

February 7, 1972 Mr.

March 16, 1978 > Mr.

37--Industrial Hygiene most desirable means of controls will provide better protection for the milhons of employees exposed The detailed studies are being made by personnel m the National Institute of Oc cupational Safety and Health (NIOSH) and industrial hygienists in state health and labor agencies Criteria documents One of the requirements established by the 1970 Act was the publication of Cntena Docu ments by the National Institute of Occupa tional Safety and Health on materials of health significance These documents once pub lished are forwarded to the U S Department of Labor for their consideration m establishing work place standards The documents con tain a detailed review of scientific information available, the probable safe atmospheric level in industry, medical controls required, methods of sampling and analysis and any needs for further study Initially the following subjects were studied and Cntena Documents published and for warded to the U S Department of Labor Asbestos Beryllium Carbon monoxide Carcinogens Chromic acid Coke oven emissions Hot environments Inorganic lead Inorganic mercury Noise Toluene Toluene diisocyanate Tnchloroethylene Ultraviolet radiation Certain of these documents have already led to the establishment of specific new permis sible atmosphenc levels, medical controls, recordkeeping requirements and recommended methods of sampling and analysis It is prob able that eventually such requirements will be promulgated for each of these criteria sub jects Many more documents are in process of development and can lead to further regula tions As time goes on more chemicals will be studied by NIOSH and submitted to OSHA for consideration and regulation No text 1032 can be kept up-to-date on a subject of this type The safety professional must keep upto-date through his own contacts with official and unofficial sources The Industrial Hygienist Definitions The following definitions have been ap proved by the American Industrial Hygiene Association "Industrial hygiene is that science and art devoted to the recognition, evaluation and control of those environmental factors or stresses, arising in or from the workplace, which may cause sickness, impaired health and well-being, or significant discomfort and inefficiency among workers or among the citi zens of the community "An industrial hycienist is a person hav ing a college or university degree or degrees in engineering, chemistry, physics, or medi cine or related biological sciences who, by virtue of special studies and training, has acquired competence m industrial hygiene.

38--Industrial Toxicology 1194 TABLE 38-E THRESHOLD LIMIT VALUES FOR CHEMICAL SUBSTANCES IN WORKROOM AIR, 1973 (Continued) NOTICE OF INTENDED CHANGES (Cont'd) vironmental conditions have not been suf ficiently defined to assign a TLV (lb) la Human Carcinogens--Substances rec ognized as occupational carcinogens with an assigned TLV Asbestos, all forms, 5 fibers/cc > 5pm in length bis (Chloromethyl) ether, 1 ppb Chromates, certain insoluble forms, lCMVg/m3 Coal tar pitch volatiles 200/*g/m8 Nickel carbonyl, 1 ppb lb Human Carctnogens -- Substances known to be potent occupational car cinogens without an assigned TLV. 4-Aminodiphenyl (p-Xenylamine) Benzidine and its salts beta-Naphthylamine 4-Nitrodiphenyl For the substances m lb, no exposure or contact by any route, respiratory, skin or oral, as detected by the most sensitive methods, shall be permitted "No ex posure or contact" means hermitizing the process or operation by the best practica ble engineering methods, and protecting the worker by proper equipment that will insure virtually no contact or entry of the carcinogen by any route 2 Experimental Carcinogens-- Industrial substances found to be of high potency m inducing tumors under experimental conditions in animals Beryllium Chloromethyl methyl ether 3, 3'-Dich!

M3R6MOIMT0 CORPORATION_______ INTER'OFPJCE C^RESPONOENCE TO: K.

17.

(7 VOL OSHA RynnT.ATTOH CHANCES - ASBESTOS SHAKE fide paper reviovs cwr.ent and projeoted future OS3U asbestos requirements relative to diao and drum braka linings, Including the potential offsets os capital investment and pioca oost iltemata supplier lining material pra gma status Is also mviewed.

* " Asuastos Information Association/'North America 22 East CivSt'Ml New Yc--.

March 6, 1970 rile 253 930 \ Mr.

As t< Q & tutor Office Car Product Devslcpnent Group To I oof Subjooti C.

METROPOLITAN LIFE INSURANCE COMPANY Premium Rates for Transferred Business in the United States When Health insurance coverages not presently in force with Metropolitan on any unit or class of the policyholder are transferred to Metropolitan from another carrier, the premium rates otherwise applicable for such coverage in accordance with the appropriate sections of this Rate Manual will be adjusted for the experience incurred with the prior carrier to the extent that such carrier's experience data is reliable (the completeness, format and consistency of all available information will be considered in determining the reliability of the prior carrier's experience).

r *' *7 ^ner Customer Part No._____ 1971 ;sey-Hayes 1 88911 88908 17,500 19,050 88762 (618)* 88134 (617) 1972 13,060 13,060 4,300 4,300 1973 13,200 12,000 54,040 54,620 1974** 29,460 30,100 197S . ?

/o 0.9372. attached to Qraup Roller So. 85TT- baarlac 4at of loon* Mar 2b, IBbO rwrlttac BeeeaBer 1, 19 5$ ood luaurlac taployaea of ___ _ mrat'gos-Mj.ta/.rrA.x. me.

DATE I 1c.c.