Document 5k5Gr2Gy8bdXY71ev1oN6LJa0

FILE NAME: Baldwin (BALD) DATE: 1946 DOC#: BALD072 DOCUMENT DESCRIPTION: OH Dept of Health - Legal Requirements for the Prevention & Control of Industrial Public Health Hazards \ F'* AW 1 71548 STATE OF OHIO J : . Legal Requirement* fo r .the . Prevention and Control of Industrial Public Health Hazard* Dmtioo of Industrial Hygw* OHIO DEPARTMENT OF HEALTH Colosboi, Ohio * ' VM 01 022 0709 STATE OF OHIO 3 Legal Requirements for the Prevention and Control of Industrial Public Health Hazards Division of Industrial Hygiene OHIO DEPARTMENT OF HEALTH Columbus. Ohio 1946 U T~0T2~rrro tte Bindery Tiotinf Company -ous, Ohio 19441 I INTRODUCTION This monograph has been prepared by the Division of Industrial Hygiene of the Ohio Department of Health for the purpose of mak ing available to industrial establishments, physicians and others, the laws of Ohio concerning employments which in whole or in part are administered by the Department of Health and the regulations of the Ohio Sanitary Code concerning industrial public health hazards which', by order of the Director of Health, are to be admin istered by the Division of Industrial Hygiene. The statutes included are those relating to the reporting of occupational diseases to the Department of Health and the pro cedures to be followed; those relating to the manufacture of lead and prescribing the responsibilities of employer and employe; and the authority of the Department to extend the list of employments prohibited to minors. The regulations included are those relating to the use of mer curial carrot in hatters' fur. adopted October 18, 1941, and for the recognition, prevention and control of diseases or ailments resulting from exposure to toxic dusts, fumes, mists, vapors and gases. Additional information may be had by addressing the Division of Industrial Hygiene, Ohio Department of Health. 65 South Front >treei. Columbus 15. Ohio. T I 1 3 1 01 022 0711 in vM U U A T IO N OF VIOLATIONS Sie lK State commissioner"of h e ^ tfin d fa n y 'person'^ u th o S 'n \joIations-) The may, without fee or hindran enter30! * *cd by hlm so to do grounds, vehicles, apartments buildings `anH T " 1' a" d survcy all in furtherance of any duty laid upon t ie deMrtlth,n or where he has reason to believe there e ? dcPartment of health (h1.07l.hV. 5la2w4.)of this state or Sf ' " Pi rroov. ,ss,oin^ Off Vthe sanitary<co*de>.' REPORTS OF OCCUPATIONAL DISEASES and by whom m a d ^ ^ E v e ry I h v ^ ^ ailments; when called m to/visit a patien/Tvhom he believes ! ? * * * f ? * " * P r poisoning from lead, phosphorus arsenic hr, 1 be Jsufferin& from cun- or their compound^ or fiom anthr^v i WOOd alcoho1- meriliness and such other occupational diseased anrf"1 5,omPresscd air state department of health shall remiire k and adments as the forty-eight hours from the time of first att e ,rcPrtcd. shall within to the state commissioner of health! r e p o r t ^ S g " ^ pat'ent SCnd ihl Mame' address and occupation of patient w busin" s ' . by the slate d e p a rtm e n t? heakh.S ma' b' rcasonably required . . Tbe reports herein required shall ho .r.,a . with the standard schedule blanks herein,3^ n' or- m conformitv mailing of the report, within the time reamlerl^ Provided for. The addressed to the office of the state rnm^ Cd' m a stamped envelope . a compliance with this section. (108 v. Pt" " n29) heaIth' shaI1 be heaItb s h a l^ p r lp a r iin i'u ^ L h 'fie T o f c ^ T to ^h eth ' * r - TM C m - o i eluded in the preceding section, standard schedule bfar;if,C1f nS reports required under this act The f,?r~ a blanks for the vb.laPntk.s2.sh1a12ll9b.)e determined" bb>v tthhee slaattee dmeparatmndenctonoftchnetsaltohf. su(cl0h8 I h f s ' 'S S f t o / b a t E ? : " hr ia lu T h r> * 7 * " ? . madc arisiug ,, ,, of ,he disease "h e V e ii're '^ U i" ^ ' " ' ^ " ) 1 "- .0 des S V t e charge of factory inspection. (108 v. Pt. 2. I if o y * " officla havmS OT'OT? 0712' RESTRICTION ON EM PLOYM ENT OF MINORS See. (Hoard shall determine whether particular employ ment of minors shall he prohibited.) The state board of health may, from time to time, after a hearing duly had, determine whether or not any particular trade, process of manufacture or occupation in which the employment of children under the age of sixteen years is not already forbidden by law, or any particular method of carry ing on such trade, process of manufacture or occupation, is suffi ciently dangerous to the lives or limbs or injurious to the health or morals of children under sixteen years of age to justify their exclusion therefrom. No child under sixteen years of age shall be employed, permitted or suffered to work in any occupation thus determined to be dangerous or injurious to such children. There shall be a right of appeal to the common pleas court from any such determination. (103 v. 910.) Sec. 13007-4. (Board may determine whether employment of children shall be prohibited in certain occupations.) The state board of health may, from time to time, after hearing duly had, determine whether or not-any particular trade, process of manufacture or oc cupation, in which the employment of children under eighteen years of age is not already forbidden y law, or any particular method of carrying on stich trade, process of manufacture or occupation, is sufficiently dangerous to the lives or limbs or injurious to the health or morals of children under eighteen years of age to justify their exclusion therefrom. No child under eighteen years of age shall be employed, per mitted or suffered to work in any occupation thus determined to be dangerous or injurious to such children. There shall be a right of appeal to the common pleas court from any such determination. (103 v. 911.) MANUFACTURE OF LEAD Sec. 6330-1. (General duties of employers.) Every employer shall, without cost to the employes, provide such reasonably effec tive devices, means and methods as shall be prescribed by the indus trial commission of Ohio, to prevent the contraction by his em ployes of illness or disease incident to the work or process in which such employes are engaged. (109 v. 181.) Sec. 6330-2. (Especially dangerous works or processes.) Every work or process in the manufacture of white lead, red lead, litharge, sugar of lead, arsenate of lead, lead chromate, led sulphate, lead nitrate or fiuosilicate, is hereby declared to be especially dangerous to the health of the employes, who, while engaged in such work or process, are exposed to lead dusts, lead fumes, or lead solutions. (103 v. 819.) See. 6330-3. (Duties of employers to provide safety appliances for the protection of employes in especially dangerous works or processes.) Every employer shall, without cost to the employes. 6 provide the following devices, iiitjnis aim methods (or the protection of his employes who while engaged in any work or process includedp-j in section 2,* are exposed to lead dusts, lead fumes, or lead solutions (a) (Working rooms.) Working rooms, hoods and air exhausts^" for the protection of employes engaged in any work or process^? which produces lead dusts or lead fumes. The employer shall pro vide and maintain work rooms adequately lighted and ventilated, andC'J so arranged that there is a continuous and sufficient change of airC^ and all such rooms shall he fully ventilated and separated by partitas tion walls from all departments in which work or process is of a noil-dusty character; and all such rooms shall be provided with a ^ floor permitting an easy removal of dust by wet methods or vacuuny^ cleaning, and all such doors shall he so cleaned daily. Livery work or process referred io in section 2,* including the corroding or oxidizing of lead, and the crushing, mixing, silting, grinding and packing of all lead salts or other compounds referred to in section 2,* shall he so conducted and such adequate devices provided and maintained by the employer as to protect the em ploye, as far as possible, from contact with lead dust or lead fumes. Kvery kettle, vessel, receptacle or furnace in which lead in any form referred to in section 2,* is being melted or treated, and any place where the contents of such kettles, receptacles or furnaces are discharged, shall he provided with a hood connected with an efficient air exhaust; all vessels or containers in which dry lead in any chemi cal form or combination referred to in section 2,* is being conveyed from one place to another within the factory shall be equipped, at the place where the same are filled or discharged, with hoods having connection with an efficient air-exhaust; and all hoppers, chutes, conveyors, elevators, separators, vents from separators, dumps, pul verizers, chasers, dry-pans or othfer apparatus for drying pulp lead, dry-pans dump, and all barrel packers and cars or other receptacles into which corrosions are at the time being emptied shall be con nected with an efficient dust-collecting system ; such system to be regulated by tlie discharge of air from a fan, pump, or other ap paratus, either through a cloth dust-collector having an area of not less than one-half square foot of cloth to every cubic foot of air passing through it per minute, the dust-collector to be placed in a separate room which no employe shall be required or allowed to enter, except for essential repairs, while the works are in opera tion; or such other apparatus as will efficiently remove the lead dusts from the air before it is discharged into the outer air. (b) (Washing facilities.) The employer shall provide a v/ash room or rooms which shall lie separate from the work rooms, be kept clean, and be equipped w ith: (1) Lavatory basins fitted with waste pipes and two spigots conveying hot and cold water, or Section 2 is G. C. section 6330-2. 7 (-') Masins place] in roughs [troughs] fitted with waste pipes and for each basin two spigots conveying hot and cold water, or (J) (.basins.) Troughs of enamel or similar smooth im pervious material litte<l with waste pipes, and for every two feet of trough length two spigots conveying hot and cold water. Where basins are provided there shall be at least one basin for every five employes, and where troughs are provided, at least two feet of troughs for every five such employes. The employer shall also furnish nail brushes and soap, and shall provide at least three clean towels per week for each such employe. A time allowed of not less than ten minutes, at the employer's expense, shall be made to each such employe for the use of said wash room before the lunch hour and at the close of the day's work. (4) (Shower bath.) The employer shall also provide at least one shower bath for every five such employes. The baths shall be approached by wooden runways, be provided with movable wooden gratings, be supplied with controlled hot and cold water, and be kept clean. The employers shall furnish soap, and shall provide at least two clean bath towels per week for each such employe. An additional time allowance of not 'less than ten minutes, at the em ployer's expense, shall be made to each such employe for the use of said baths at least twice a week at the close of the day's work. The employer shall keep a record of each time that such baths are used by each employe, which record shall be open to inspection at all reasonable times by the (state department of factory inspection) and* also by the (state board of health). (c) (Dressing Rooms.) The employer shall provide a dressing room or rooms which shall be separate from the work rooms, be furnished with a double sanitary locker or two single sanitary lockers for each such employe and be kept clean. (<l) (Kntiiig Rooms.) The employer shall provide an eating room or eating rooms which shall be separate from the work rooms, be furnished with a sufficient number of tables and seats, and he kept clean. No employe shall take or be allowed to take any food or drink of any kind into any work room, nor shall an employe remain or be allowc! to remain in any work room during the time allowed for his meals. (e) (Drinking Fountains.) The employer shall provide and maintain a sufficient number of sanitary drinking fountains readily accessible for the use of the employes. ( f) (Clothing.) The employer shall provide at least two pairs of overalls ami two jumpers for each employe, and repair .or renew such clothing when necessary, and wash the same weekly. Such clothing shall be kept exclusively for the use of that employe. (g) (Respirators.) The employer-shall provide, and renew when necessary at least two reasonably effective respirators for each 8 022 0714 employe who is engaged in any work or process which produces lead dusts. (103 v. 819.) Sec. 6330-4. (Duties of employes in especially dangerous works or processes to use the safety appliances provided by the employers.) Every employe who, while engaged in any work or process included in section 2,* is exposed to lead dusts, lead fumes or lead solutions, shall: (a) Use the washing facilities provided by the employer in accord with section 3 (b),** and wash himself at least as often as a time allowance is therein granted for such use. (b) Use the eating room provided by the employer i n accord with section 3 (<!),* unless the employe goes off the<r~> premises for his meals. (c) I*nt on, and wear at all times while engaged in accord with section 3 ({), * and remove the same before leaving at the close of the day's w ork; and keep his street clothes and his working clothes, when not in use, in separate lockers or sepa rate parts of the locker provided by the employer in accord with section 3 (c).** (d) Keep clean the respirators provided by the employer in accord with section 3 (g),** and use one at all times while he is engaged in any work or process which produces lead dusts. (103 v. 822.) Sec. 6330-5. (Notices, printing, posting and explaining same.) The employer shall post in a conspicuous place in every work room where any work or process included in section 2,* is carried on, room where washing facilities are provided, dressing rooms and eating room. A notice of the known dangers arising from such work or process, and simple instructions for avoiding, as far as possible, such dangers. The (chief state factory inspector) shall prepare a notice containing the provision of this act, and shall furnish, free of cost, a reasonable number of copies thereof to every employer included in section 2 * and the employer shall post copies thereof in the manner hereinabove stated. The notices required in this section shall be printed in plain type on cardboard, and shall be in English and in such other languages as the circumstances may rea sonably require. The contents of such notices shall be explained to every employe by the employer when the said employe enters employment in such work or process, and in addition shall be read to all employes at least once a month, interpreters being provided by the employer when necessary to carry out the above require ments. (103 v. 822.) Sec. 6330-6. (Medical examination of employes.) The employer shall cause every employe who, while engaged in any work or process included in section 2 * is exposed to lead dusts. lead fumes * Section 2 is G. ('. section C330-2. ** Section 3 is G. C. srclion 6330-3. 9 or lead solutions, lo he examined at least once a month for the pur pose of ascertaining if symptoms of lead |>oispning appear in any employe. The employe shall submit himself to the monthly exami nation and to examination at- such other times and places as he may reasonably be requested by the employer, and he shall fully and truly answer all questions bearing on lead poisoning asked hint by the examining physician. The examinations shall be made by a licensed physician, designated and paid by the employer, and shall be made during the working hours, a time allowance therefor, at the employer's expense, being made to each employe so examined. (103 v. 822.) Sec. 6330-7. (Record and reports of medical examination.) Every physician making any examination under section 6,* and finding what he believes to be symptoms of lead poisoning shall enter, in a book to be kept for that purpose in the office of the employer, a record of such examination containing the names and address of the employe so examined, the particular work or process in which he is engaged, the date, place and finding of such examina tion, and the directions given in each case by the physician. The record shall be open to inspection at all reasonable times by the (state department of factory inspection) and by the (state board of health). m (What re|K)rts shall state). Within forty-eight hours after such examination and finding, the examining physician shall send a re port thereof in duplicate, one copy to the (state department of factory inspection) and one to the (state board of .health). The report shall be open or in conformity with blanks to be prepared and furnished by the (state board of health), free of cost, to every employer included in section'2,** and shall state: (a) Name, occupation and address of employe. (h) Name, business and address of employer. (c) Nature and probable extent |of| disease. (d) Such other information as may be reasonably re quired by the (stale.board of health). The examining physician shall also, within the said forty-eight hours, report such examination and finding to the employer, and after five days from such report the employer shall not continue the said employe in any work or process where he will be exposed to lead dusts, lead fumes or lead solutions, nor return the said employe to such work or process without a written permit from a licensed physician. (103 v. 823.) Sec. 6330-8. (Enforcement.) The (state department of factory inspection) shall enforce this act and prosecute all violations of the same. The officers, or their agents, of the said (department) shall be allowed at all reasonable times to inspect any place of employment included in this act. (103 v. 823.) * Section G is G. C. section G330-G. ** Section 2 is G. C. section 6330-2. IO <rr- 01 715 022 Sec. 6330-9. (Penalties for ^violations by employer or employe.) livery employer, who either personally or through any agent vio lates or fails to comply with any provision of section 1,* or sec tion 3,** shall he guilty of a misdemeanor, and on conviction for the first ofTense shall he fined not less than one hundred dollars nor more than two hundred dollars, and on conviction for the second offense, not less than two hundred dollars nor more than five hun dred dollars, and on conviction for each subsequent offense, not less than three hundred dollars nor more than one thousand dollars, and in each case he shalt stand committed until such fine and the costs are paid, or until lie is otherwise discharged by due process of law. Every employe who violates or fails to comply with any provi sion of section 4,*** shall he guilty of a misdemeanor, and on con viction for the first offense shall he fined not less than ten dollars nor more than twenty-live dollars, ami on conviction for the second offense, not less than twenty dollars nor more than fifty dollars, and on conviction for each subsequent offense not less than thirty dollars nor more than one hundred dollars, and in each case he shall stand committed until such fine and the costs are paid, or until he is otherwise discharged by due process of law. livery employer who, either personally or through any agent, violates or fails to comply with any provision of sections 5, 6, or 7,f relating to him, and every employe who violates or fails to comply with the provision of section 6 relating to him shall be guilty of a misdemeanor, and on conviction thereof shall be fined not less than ten dollars nor more than one hundred dollars. (103 v. 823.) Sec. 6330-10. ("Employer" cfeliucd.) In this act, unless the context otherwise requires, "employer" includes persons, partner ships and corporations. (103 v. 824.) Sec. 6330-11. (Each section independent.) For the purpose of determining the constitutionality of any provision of this act, sec tion 1,* hereof is declared to be independent of and separable from the remaining sections. (103 v. 824.) Sec. 6300-12. , (Time of taking effect.) This act shali take effect on the first day of October, 1913, except as to subdivisions (a), (b). (c) and (d) of section 3.** which subdivision shall take effect as follows: Subdivision (b), (c) and (d) of section 3,** on the first day of October, 1914. , Subdivision (a) of section 3,** on the first day of October. 101 c, O03 v. 824.) Section 1 is Ci. C. section 6.1.10-1.. * Section 3 is G. C. section 63.10-3. *** Section 4 is G. C. section 6330-4. t Sections fl. 6. and 7, are G. C. sections 6330-5, 6330-6. and 6330-7. I U SE OF M ERCU RIA L CARROT IN H A T T ER S' FU R (Extract from Ohio Sanitary Code.) Regulation jt. (Definitions.) For the purpose of carrying out tlu* provisions of these regulations the following terms are defined : Hatters' Fur is any animal fiber or other substance used in the manufacture of hats, which is treated or otherwise prepared by the process of, or in a manner similar to that of carroting. Carroting is the process of treating hatters' fur with mercury nitrate or any other solution or material for the purpose of render ing the hatters' fur suitable in the manufacture of hats. Mercurial carrot is any solution or material containing mercury or its compounds in combination with nitric acid or other materials and user! in the carroting or preparation of hatters' fur. Adopted October 18, 1941 ; filed with Secretary of State No vember 18, 1941 ; effective December 1, 1941. Regulation 242. Effective December 1, 1941, the use of mer curial carrot in tlie preparation of hatters' fur, or the use of mer curial carrotted hatters' fur in the"manufacture of hats, is prohibited: Provided, That any hat manufacturer or fur cutter having mer curial carrotted hatters* fur on hand December 1, 194*. may use said fur until it is consumed. Adopted October 18, 1941 ; filed with Secretary of State No vember 18. 1941: effective December 1, 1941. 12 9 J 0 ZZQ REGULATIONS FOR THE PREVENTION AND CONTROL C DISEASES RESULTING FROM EXPOSURE TO TOXIC FUMES, VAPORS, MISTS, GASES AND DUSTS IN ORDER TO PRESERVE AND PRO TECT THE PUBLIC HEALTH Adopted by the Ohio Public Health Council February 16, 1946 Filed with the Secretary of State March 1, 1946 Effective January 1, 1947 Regulation 244. (Application of Regulations.) These regulaO tions shall apply to every place of employment and particularly to those places of employment where a work or process is carried on by which dusts, fumes, mists, vapors, gases or environmental con ditions of a harmful nature are produced or generated, or exist in dependently of the work or process, which may be inhaled or ab sorbed or m any other manner enter the body in quantities or con centrations that constitute harmful exposure as hereinafter defined. Regulation 245. (Modifications.) When strict compliance with all of the provisions of these regulations would involve undue hard ship, the Ohio Department of Health may, upon application in writing, permit modification of the requirements when protection practically equivalent to that required by these regulations has been provided. The application for the modification of any of these regulations in any particular case shall he accompanied by a full statement of the existing conditions and the reasons for requesting such modification. Any modification granted under the provisions of this paragraph shall be limited to the particular case covered by the application for such modification. Regulation 246. (Definitions.) (1) A "Gravity System of Ventilation'' means one which de pends wholly upon relative air density, (2) A "Mechanical System of Ventilation" means one which depends upon the operation of power-driven equipment. (3) "General Ventilation" means the ventilation of the general atmosphere in the place of employment. (4) "Dilution Ventilation" means ventilation provided to dilute the concentration of dusts, fumes, vapors, or gases in the atmosphere of all or part of the place of employment. (5) " Local Exhaust Ventilation" means that type of ventilation in which suction is applied at the point of generation or escape of dusts, fumes, mists, vapors or gases. (6) "Exhaust System" means a complete suction device, includ ing all hoods, ducts, fans, separators, and receptacles when required, and any other part necessary for the proper installation and opera tion thereof. 3 CASKS-. AND VA PO RS --Concluded CONCENTRATION Parts per million (by volume) Telrachlorcthane ................................................................ 10 Tetrachlorethylene ( Pcrclilorethylene) ........................... 200 Toluene (Toluol) ............................................................... 200 T richlorethylene ............................. 200 Turpentine ................................... 200 Xylene (Xylol) .................................................................. 200 METALLIC DUSTS AND FUMES CONCENTRATION Milligrams per cubic meter Cadmium ............................................................................ Chromic Acid and Chromates ......................................... (Calculated as chromic oxide, C rO ,)....................... I^ead .................................................................................. Manganese .......................................................................... Mercury ............................................................................ Zinc O x id e ......................................... A .............................. o. 1 o. 1 0.15 6.0 o. 1 15.0 OTHER DUSTS AND FUMES Chlorinated Diphenyls ............................... . ..................... 1.0 Chlorinated Naphthalenes: Trichlornaphthalene .......... ........................................ 5.0 Pentachlornaphthalene ..................................... 0.5 MINERAL DUSTS Asbestos ................................................... Silica, free or uncomhincd : Over 40% 20 to 40% 10 to 20% RADIATION X-ray (Roentgens per day) . Radium (Roentgens per day) Radon gas (Curie per liier) . CONCENTRATION Million particles per cubic foot ........ 5 ........ 5 ........ 10 ........ 20 O. I O. I "Explanatory N ote: ( D At least three atmospheric samples, spaced at intervals to yield an average measurement of exposur? over the entire cycle of operation under lest shall be collected in the'brcathing zone of the worker or wherever such exposures are suspected or known to exist. Ifi 22 0718 (2) The sampling anil analysis pi i'niitaini|iatcd air ami the inter imitation of the data in relation to the staled tnaxiiiunn allowable concentra tions shall he done only by technically qualified and competent per sons using methods approved by die Ohio Department of Health. (3) Tcinjmrary ei/iiccntrations in races* oi the maximum allowable con centrations listed shall not be |icrinitted if exposure to such concen trations for a period of one hour or less may result in an adverse effect on health as determined by the Oh.' Department of Health. (4) For the purpose of the above maximum allowable concentrations for silica, the free silica content shall be the percent of free silica in the fraction ol the air-borne dust hi the breathing lone of the worker that is smaller than ft microns in maximum diameter. (ft) For all other dust determinations millions of dust particles per cubic foot of air by the light field microscope counting technique shall include all microscopically visible particles up to 10 microns in sire." Regulation 248. (General Ventilation). Special Requirements:o Wherever harmful concentration of dusts, fumes, mists, vapors or gases exist, or are produced in the course of the employment, and prevention, elimination, or control of said harmful exposures is not practical liy local exhaust, or hy other means as hereinafter provided, the capacity of the general ventilation system, he it a gravity or mechanical means of moving air, shall be augmented, or sufficient dilution ventilation provided, so as to provide for the elimination of said harmful exposures to a degree specified under Regulation 2.47. Regulation 2.49. (Local Exhaust Ventilation). (1) Where Required: All equipment and processes that emit or create harmful dusts, fumes, mists, vapors, gases, or other con taminants in quantities that tend to be harmful to the health of the employees exposed thereto, and where general ventilation alone or in conjunction with other provisions of these regulations, is inade quate to furnish the required protection.' shall he connected to an exhaust system for the removal of said hazards, as far as practicable at their point of origin. Wherever practicable, application of local exhaust ventilation is preferred. (2) General Requirements: Exhaust fans, ducts, hoods, sepa rators, and all necessary appurtenances including refuse receptacles shall be so designed, constructed, maintained and operated as to insure the required protection in the production of volume and velocity of exhaust air sufficient to gather dusts, fumes, mists, vapors, or gases from said equipment or process and to convey them to suitable points of safe disposal thereby preventing their dispersion in harmful quan tities into the atmosphere of work rooms, or other places where persons are employed. (3) Duration of Operation: The exhaust system shall be in operation continually during all operations which it is designed to serve. If the employee remains in the contaminated zone, the system shall continue to operate for some time after the cessation of said operations, the length of time to depend upon the individual circum stances and effectiveness of the general ventilation system. 7 (4) D'isiMisal of Exhaust Materials: The air outlet from every dust separator ami the fumes, mists, vapors, or gases collected by an exhaust system shall discharge in such a manner that the discharged materials shall not reenter places of employment in harmful quanti ties or in concentrations which exceed the maximum allowable con centrations specified in Regulation 247. Dust, and refuse discharged from an exhaust system shall be burned (when feasible), buried, treated, or otherwise disposed of in a manner that will prevent its harmful dispersion. Regulation 250. (Dust Allaying Media). Use shall be made of water, oil or chemicals in such non-injurious quantities and with such frequency, as may be necessary to suppress and allay harmful dust wherever the provisions of Regulation 249 are impracticable or inadequate to prevent harmful exposure. The use of dust allaying media may also be supplementary to other provisions of these regulations. Regulation 251. (Personal Protective Equipment). (1) When to be Worn: Where the removal of harmful dusts, fumes, mists, vapors or gases at their source, as provided for in Regulation 249 is impracticable the employees who may be liable to harmful exposure shall be protected by means of respiratory or other protective equipment apjfroved by the Ohio Department of Health for the specified employment involved. (2) Protection of Temporary Nature: The use of respiratory equipment shall in general, be regarded as emergency protection against occasional and/or relatively brief exposure. '~t (3) Approval Required: Respiratory protective equipment in cluding filter, cartridge and siipplied-air respirators, hose masks, can ister-type gas masks, supplied air-hoods and helmets, and self con tained oxygen breathing apparatus shall be of a type approved by the Ohio Department of Health. (4) Education and Use of Equipment Required: Employers and employees shall familiarize themselves with the use, sanitary care and limitations of such respiratory equipment as they may have occasion to use. (5) Provision and Care of Equipment Required: Duty of Em ployer and Employee: It shall be the duty of the employer to provide and replace when necessary, such respiratory and other personal pro tective equipment as may be required, and to maintain same in effi cient and sanitary condition. It shall be the duty of the employee to use such equipment pro vided for him and to exercise due care to maintain same in efficient and sanitary condition. Protective devices and protective clothing shall be worn or used a! all times during the period of exposure. (6) Air Supply to Positive Pressure Equipment: Air supplied to hose masks and positive-pressure air helmets shall be free from harmful dusts, fumes, mists, vapors, or gases to the extent that the inhalation of such air shall not constitute harmful exposure as set 18 lurlli in Regulation j 17. The ail-Jslinuld, preferably, hr supplied In' Miraiis of a blower-type tan. Whenever compressed air is used an approved filter shall be inserted in the supply line to remove any oil, sediment or condensation that it may contain. Such filter shall he maintained in efficient working condition. 01 022 0719 (7) Wherever air is delivered to respiratory eipiipment. the intake to the blower-type fan, low pressure compressor or ordinary compressor shall he so located as to prevent harmful contamination of the air liy carbon monoxide, internally lubricated'Compressors are not recommended for supplying air to respirators mid, if internally lubricated compressors are so used they must be provided with a suitable temperature regulator to prevent overheating of the com pressors and with a carbon monoxide alarm device to insure adequate warning of exposure to carbon monoxide. (H) Air Pressure to be Regulated: Wherever positive-air respiratory equipment is used, an automatic pressure relief valve shall be installed in the supply line. T h e maximum allowable pressure shall he 10 pounds per sipiare inch. This does not apply to self-con tained oxygen breathing apparatus. a. The standard of health protection when using positivepressure air respiratory eipiipment is the maintenance of positive pressure within the eipiipment. The minimum of air pressure to be maintained within such eipiipment is therefore that which will assure a steady and continuous outward flow of air from within the apparatus. (ij) Sanitation of Respiratory Kipiipiuent: The employer shall provide an approved means for cleaning and sterilizing all respiratory eipiipment, and it shall be the duty of the employer to cause such eipiipment to be maintained in a clean and sanitary condition. Respiratory eipiipment shall not be passed on from one man to another until such eipiipment is cleaned and sterilized. When filter or cartridge type respirators are used, each employee shall have such respirator for his own exclusive use. Respiratory equipment and replacement units shall be stored, when not in use, in approved containers. Regulation j $j . (Isolation of Hazardous Operations). (I) In every place of employment where a work or process is carried on, in which, or in connection with which, dusts, fumes, mists, vapors or gases are produced in quantities or concentrations and under ciuulitinus which may injure the health of the employees, or where environmental conditions harmful to the health of em ployees are produced, such operations shall be isolated unless the employer elects to control said harmful exposures under other pro visions of these regulations. (_) Whenever practicable, the industrial operation or process shall be effectively controlled or enclosed to prevent harmful chem icals or injurious substances from coming in contact with the skin. 19 i i MA ' maintenance: Th** I I I iOnf emmapteloriyamlsenntewrihttre hhafrrmmfufl^expfosHuereas,thexiHstazfaTMrds) t In an Pe,aces ?nd from heat^radiation [xkJ ^ S . S m SS" aW s injurious substance or l*''' radioactive materiaf r fases such hazards and chad U-Se* crnployer shall n r an-' ot^er the harmful vnrT h Peno<hcaIlv instruct -ii 11 ?aI1 attention to Regulation 2-- / y i es therefrom. shall subject t h ^ Z < t ? ' * pTM . 'hereto by the Ohio n * comP1.v with anv 1 penalties provided b y T a y S Vloiatin8' or iaiHng^o^m pl'v R* "e-g6 uJl<a1tUio01n1 22^;66. / T _ t ,, leguiations shall be held tn KPretf tl0n' - ^ anv 0f tho validity ,, f anv h er of s" " ' hoWine shLp Z Z - " * the foregoing regulations " 0t aIlect I 20 01 022 0720