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FILE NAME Allied Signal Bendix ASB DATE 1958 Nov 1 DOC ASB075 DOCUMENT DESCRIPTION NY State Industrial Code 12 State of New York Department of Labor BOARD OF STANDARDS AND APPEALS The Industrial Code Rule No. 12 CONTROL OF AIR CONTAMINANTS IN FACTORIES Effective November 1 1958 PLAINTIFF'S 80-631-698 EXHIBIT 80-631-698 815 PENGAD WOKO00952 WOKO00952 STATE OF NEW YORK DEPARTMENT OF LABOR ISADOR LUBIN Industrial Commissioner BOARD OF STANDARDS AND APPEALS William S. Maxwell Chairman 1 Myron Lewis Member George S. Raymond Member Copies of this Rule may be obtained from the State of New York Department of Labor Alfred E South State Office Build- Oflice of the Administrative Administrative Duector The Governor Office Building 80 Centre Street New York 13 ing Albany , New York or State each Checks and money orders should be made New York at a cost of 25 cents payable the Industrial Commissioner 1 Postage stamps not accepted RULE Relating to CONTROL OF AIR CONTAMINANTS IN FACTORIES STATE OF NEW YORK DEPARTMENT OF LABOR SS BOARD OF STANDARDS AND APPEALS In pursuance of the authority vested in me by the Labor Law and Section 382 of the Civil Practice Act , WILLIAM S. MAXWELL CHAIRMAN OF THE BOARD OF STANDARDS AND APPEALS New York State Department of Labor DO HEREBY CERTIFY that Industrial Code Rules 700 to 757 inclusive relating to removal of dust gases and fumes and published in Industrial Code Bulletin No. 12 were duly adopted by the Industrial Board of the New York State Department of Labor November 20 1930 to be effective January , 1931 and duly filed in the office of the Secretary of State of New York December 13 1930 that thereafter on April 23 1943 Rules Nos 752 to 756 inclusive were duly repealed by the Board of Standards and Appeals of the State of New York that by Administrative Resolution of the said Board of Standards and Appeals dated May 12 1951 the above mentioned Bulletin No. 12 all the said Rules therein timbered from 700 to 757 inclusive were desig nated Industrial Code Rule No. 12 that the said Industrial Code Rule No. 12 formerly designated hubstrial Code Bulletin No. 12 as effective January 1 1931 was duly repealed said repeal to be effective October 1 1956 and Industrial Code Bule No. 12 relating to Control of Air Contamnants was duly adopted by the said Board of Standards and Appeals on June 21 1956 and prescribed to effective October 1 1956 pursuant to and by authority of Sections 27 28 29 200 and 299 of the Labor Law that said repeal and said Industrial Code Rule No. 12 relating to Control of Air Contaminants were filed in the office of the Departament of State of New York on August 7 1956 that snid Rule was duly amended and adopted by the Board on July 23 1958 and prescribed to take effect as amended on November , 1958 and said Industrial Code Rule No. 12 relating to Control of Air Contaminants in Factories was filed in the office of the Secretary of State of New York on August 1 1958 pursuant to Section 29 of the Labor Law Section 102 of the Excentive Law and Section 8 of Article IV of the Constitution of the State of New York that no part of Rule No. 12 has been amended or repealed except as above stated and is flint the copy of said Rule contained in this pamphlet a true and correct transcript of the whole original text of said Rule as amended Given under my hand and the seal of office of the Department of Labor nt Albany Y. this 1st day of August 1958 WILLIAM S. MAXWELL Chairman Board of Standards and Appeals ISU Y EXTRACTS OF THE LABOR LAW Section 28. Rules of the board of standards and appeals Rules of the board of standards and appeals may be made for 1. The proper sanitation in all places to which this chapter applies and for guarding aginst against and minimizing minimizing fire hazards personal injuries and diseases in all places to which this chapter applies with respect to a The construction demolition alteration equipment and maintenance of all such places including the conversion of structures into factories factory buildings and mercantile establishments ; b The arrangement and guarding of machinery and the storing and keeping of property and articles c The places where and the methods and operation by which trades and occupations may be conducted and the conduct of employers em- ployees and other persons It being the policy and intent of this chapter that all places to which it applies shall be so constructed equipped arranged operated and conducted in all respects as to provide reasonable and adequate protection to the lives health and safety of all persons employed therein and frequenting the same and that the board shall from time to time make such rules as will effectuate such policy nad intent d The sanitation and adequate shelter as affecting the welfare and health of all persons employed by any railroad pullman or express company company 2. Whenever the board finds that any industry trade occupation or involves such elements of danger to the lives health or safety of pperroscoensss employed employed therein as to require special regulation for the protes- tion of such persons the board may make special rules to guard against such elements of danger by establishing requirements as to temperature humidity the removal of dusts gases or fumes by requiring licenses to be applied for and issued by the department as a condition of carrying on such industry trade occupation or process by requiring medical any inspection and supervision of persons employed or applying for employ- ment and by other appropriate means 3. The rules may be limited in their application to certain classes of establishments places of employment machines apparatus articles proc- industries trades or occupations or may apply only to those to be constructed established installed or provided in the future 4. The rides of the board shall have the forne and effect of law and shall be enforced in the same manner as the provisions of this chapter 5. No provision of this chapter specifically conferring powers on the board to make rules shall limit the power conferred by this section Section 30. Variations Excerpt If there shall be practical difficulties or unnecessary hardship in carrying out provisions of the Labor Law or of this rule the Board may make a variation from the requirements thereof Any person affected by such provision or rule or his agent a may petition the Board for such variation stating the grounds therefor 4 Neof ee Section 110. Review by board of standards and appeals 1. Any person in interest or his duly authorized agent may petition the board of standards and appeals for a review of the validity or reasonable- ness of any rule or order made under the provisions of this chapter 2. The petition shall be verified shall be filed in duplicate with the board of standards and appeals and shall state the rule or order proposed to be reviewed and in what respects it is claimed to be invalid or unreasonable Any objections to the rule or order not raised in the petition shall be deemed waived The board may join in one proceeding all petitions alleging invalidity or unreasonableness of substantially similar rules or orders The filing of such petition shall operate to stay all proceedings against the petitioner under such rule or order until the determination of such review " ee 5. The decision of the board shall be final unless within thirty days after it is filed one of the parties commences an action as provided in section one hundred and eleven Section 200. General duty to protect health and safety of employees All places to which this chapter applies shall be so constructed equipped adequate protection arranged operated and conducted as to provide reasonable and to the lives health and safety of all persons employed therein The board shall make rulos to carry into effect the provisions of this section Section 299. Ventilation heating and humidity 2. All machinery creating dust or impurities in quantities tending to injure injure the health of employees shall be equipped with proper hoods and pipes connected to an exhaust fan of sufficient capacity and power to remove such dusts or impurities such fan shall be kept ruming constantly while such machinery is in use If the board decides that such apparatus is unnecessary for the health and welfare of the employees or that other means of protection may be provided to safeguard the health and welfare of the employees against such injurious dusts or impurities it may adopt rules excepting such machinery from the operation of this subdivision or prescribing such requirements as will effectuate the intent of this subdivision 3. If dust gases funies vapors fibers or other impurities are generated or released in the course of the business carried on in any workroom of a factory in quantities tending to injure the health of the employees suction devices shall be provided which shall remove such impurities from the workroom at their point of origin where practicable by means of proper hoods connected to conduits and exhaust fans Such fans shall be kept running constantly while the impurities generated or released ot 4 z may 5. If any requirement of this section or any rule adopted thereunder he not complied with the commissioner shall issue an order directing com- pliance therewith within thirty days after the service thereof He in such order require plans and specifications to be filed In such case before in providing or making any ahauge or alteration any machinery or appa- jatus for any of the purposes specified in this section the person upon whom such order is servod shall file with the commissioner plans and specifications therefor and shall obtain his approval of the same NOTES The suffer or permit as employed in this rule implies knowl- phrase reasonable diligence to acquire knowledge edge or the opportunity through reasonable continuity The phrase measure continuity and permanence This presupposes a fair of act or rondi- further implies the power to prohibit prevent or hinder an 30 25 further Peo rel vs See ex Price Sheffield Farms, etc. 225 Y. 30 and and Avon Bar and Grill Inc. vs O'Connell 276 A.D. 517 cited enses of violation of violation A The rules of the board have the force and effect of law the rules adopted by the Board is punishable as a penal offense Penal Law Sections 1275 1276 1277 SIS FOUwt THE INDUSTRIAL CODE RULE NO 12 CONTENTS 12-1 12-2 12-3 1212-5 12-6 12-7 12-8 12-9 12-10 12-11 12-12 12-13 12-14 12-14.1 12-14.1 12-14.2 12-14.2 12-14.3 12-14.3 12-15 12-16 12-17 12-18 Application 066 0.0.00... ccc nee tenets Definitions 0.0.0.0. eee ee eee tenets Responsibility of Employers 00 creer eects ......--45-00-0 Responsibility of Employees ....-....----+Existing Equipment -....-.... Prevention of Air Contamination .... General Maintenance of Equipment . General Control Requirements eee eee eet ee .....,.cee General Control Methods . Exhaust Systems 0 0.0 .6 ee ce eee eee eee Isolation or Segregation of Operations .............. Separation of Different Processes Creating a Hazard ....... Prevention of Ignition '0000...0 ccc e eect e eee teenies Personal Respiratory Protective Equipment ...........-..5. Use 00. ces ee ren eee Approval 0.1.0. c. cee eee cee eee ee Maintenance .....-- Lee Goggles Masks and Shields wees 00. v 2 e 6 e. Protective Clothing 6. c6.. 6 bee ee beer trs ees Emergency Flushing Facilities -. 0... - Flexible Electrical Cords and Portable Lights . Mixing and Thinning of Flammable Liquids . 16 Emptied Containers 0 16s eee ee eee 16 Use of Certain Flammable Liquids .. 6... eens 16 Refuse Material .. oe Pe eee vee renee Protection of Adjacent Occupancies .. .. -.-.-.---- Wall and Ceiling Construction ..... Wall Openings Le cee ee ee cee eben ee ates Specific Operations and Specific Control Requirements Grinding and Polishing Wheels etc. ...... Woodworking Machines . Melting Apparatus . 7 Open Surface Tank Operations +5). --0 e+ ...-.---. Open Surface Tank Operations ... .... . + + Classes of Operations . Humidity Control ...- scene Cleanout Doors .. Solvent Transfer 0... coe eee cee tenes 12-24.4.6 12-24.4.6 12-24.4.6 12-24 4.6.3 Vapor Phase Degreasing .......-+--- Freeboard ..........-. . Heating .....-- ----- . Thermostatic Control an Condensers ........- 12-24.4.9 12-24.4.10 Operation ......--.---5- Cleaning of Tanks ....-.. oe Welding Open Flame etc. ..... Special Precautions for Cyanide ... 12-24.5 12-24.5.1 Tumbling Processes .. ...-...- General Provisions .......-+----+-- 12-24.6 12-24.6.1 12-24.6.2 12-24.6.3 12-24 12-24.7.1 12-24.9.1 12-25 Abrasive Blasting Operations .... 0 ...+-+.---- ae General Provisions : Operation .. i.e cee ne eer ee neers Air Supply .... etter tees - Crushing Milling Screening and Conveying 88 Mixing General Provisions . ...-.-. 0s esc eee eee nee Cutting Welding Brazing Flame and Metallizing ... 8888 General Requirements ...... - a bop eee eee 8888 Operations Classes of .. 2.2.0 eee eee ree ee 8888 Protection of Operators Operating Exhaust Gases from Motor Vehicles Areas in Enclosed General Provisions anne Industrial Products Coating ....---- 12-25 Required Ventilation . '. -.-.. es ereeeeeeee eset Heating Drainage of Flammable Liquids Waste .........-..+ Maintenance and Operation .. 0 . cre. eee r. ece. eeee Maintenance of Equipment .. Purging . wes cee Floor Maintenance . : ne eee Leen Passage Space 0 1552 1552 .. 6. pee) eevee cere Liquids 22 46 12-25 Containers 22.0 Flamable Liquids Transfer of Flammable teeters 2980 XJM S 2980XJM Vehicles 0... ccc te ee een teen 2 2 Use of Different Types of Coating Materials ... e cane 22222222 2222 Mixing and Thinning Coating Removal by Use of Solvents --..-....------2500: 2222 Sanding ......00..0 fete cere teeter eee Solvents 2 2 2 Cleaning sede e eta wees Cleaning of Hoods and Booths ....... ns Spray 2 2 2 2 Lining of Booths 265... e eee e eee neers .,...... 12-25.5 12-25.6 12-25.6.5 12-25.6 6 12-25.6.7 Tanks Troughs and Mechanical Application ..........-+-+5 Enclosed Operations Fire Protection ...... Installation of Tanks bee veer eer pte ne Heating of Liquids cece eee 20.0.0... cece eee eee Forced Drying and Baking .......-- 0 .. ve eee see eee n Construction Ventilation1 Explosion Vents . Controls Dampers .... . connec eee Combination Booths Cleaning 2.0... ee cee eee licence 12-25.7 12-25.7.2 12-25.7.3 12-25 7.4 12-25.7.5 12-25.7.6 Storage Lecce ee eek ene tae eens Enclosure of Storage Rooms Lecce ene tener eee eens tae Location of Storage Rooms .........- Floor Drainage and Door Sills .... .- Limitation of Quantities .. Container Covers Ventilation Electrical Equipment ........6. 0 cesses 12-25.82 12-25.82 Equipment Wiring and Lighting a beeen : 12-25.8.3 Control Equipment : 12-5.84 12-25.8.4 Other Equipment ..-.. K328QQQ8555 12-25.8.5 Grounding of Equipment . K328QQQ8555 12-25.8.6 Electrostatic Apparatus . K328Q Q 85 5 Approval Required ..... K328QQQ8555 Conductive Coatings K328QQQ8555 Hand Operations . K328QQQ8555 Location K328QQQ8555 Supports K328QQQ8555 Clearance K328Q Q 85 5 12-25.8.6.7 Articles on Conveyors K328QQQ8555 12-25.8.6.8 Automatic Controls ........... : K328QQQ8555 Guarding and Isolation of Process ee K328QQQ8555 Signs . .....-..... K328QQQ8555 Insulators ....... K328QQQ8555 Fire Fighting Equipment ... Automatic Sprinklers ... Automatic Extinguishers Hand Extinguishers .. Evidence of Dangerous Air Contaminants Approved Devices or Materials ... ee Ee AN ' 6 Be Le INDUSTRIAL CODE RULE NO 12 Relating to CONTROL OF AIR CONTAMINANTS IN FACTORIES 12-1 APPLICATION This rule applies in and to all factories in the State of New York except as otherwise provided by law and to all persons employed therein and to their employers in respect to all materials materials processes and operations generating releasing or disseminating air contaminants In respect to contaminants resulting from such processes or operations the following rules which contain references refrences to the prevention and control of air con- taminants and other provisions of the Industrial Code in regard thereto which may be adopted after November 1 1958 shall govern where ineon- sistent with this rule Industrial Code Rule No. 4 Relating to Bakeries and Confectioneries Industrial Code Rule No. 10 Relating to Equipment Maintenance and Sanitation of Foundries and the Control of Dust Gases and Funes in Foundries Industrial Code Rule No. 11 Relating to Milling Industry and Malt Houses Industrial Code Rule No. 23- Relating to Protection of Persons Emplayed in the Erection Repair and De- molition of Buildings or Structures Industrial Code Raile No. Relating to Construction Equipment Maintenance and Operation of Laundries Industrial Code Rule No. --- Relating to Dry Dyeing Plants and Dry Cleming Plants Industrial Code Rule No. 33- Relating to Control of Silica Dust m Rock Drilling Industrial Code Rule No. 34- Relating to Control of Silica Dust in Stone Crushing Operations Industrial Code Rule No 35 Relating to Control of Silica Dust in Stone Cutting and Stone Finishing In- dustry - Industrial Code Rule No. Relating to Radiation Protection The provisions of Industrial Code Rule No. 18 relating to exhaust systoms shall apply for operations not specifically covered by the above rules 12-2 DEFINITIONS As used herein and in connection with this ride the following terms mean 1. Air Contaminants borne substances such as dusts fibres fumes gases mists vapors and other impurities 11 2. Air Mover Any device which produces forced air flow such as a l'an ejector or natural draft stack 3. Approved In respect to a device or material in compliance with a subsisting resolution of approval adopted by the Board in respect to action by the Board made the subject of a resolution of approval 4. Board The Board of Standards and Appeals of the State of New York 5. Commissioner The Industrial Commissioner Commissioner of the State of New York 6. Confined Space A space so enclosed that dangerous air contamination therein cannot be prevented or removed by natural ventilation through openings in the enclosure 7. Control Equipment Equipment used to prevent air contamination or reduce or remove air contaminants 8. Dangerous Air Contaminants Air contaminants in quantities tonding to injure the health of employees or creating a fire or explosion hazard or in quantities greater than 50 of the lower explosive level of any mixture or compound which they may form 9. Dilution Ventilation A ventilation system other than local ventilation which reduces air contamination to safe levels by the introduction of uncontaminated nir 10. Dipping The application of industrial products coating material by incans of total or partial immersion 11. Employee A person employed one who works for wages or salary in the service of another 12. Exhaust System A ventilating system operating under negative pressure for the control of air contaminants 13. Fibres Particles produced by handling cutting stripping spinning or weaving of cotton wool fur asbestos or other material constituted of thread or slender elements 14. Flammable Capable of igniting and continuing to burn when brought in contact with an open flame glowing combustion or other source of ignition 15. Impregnating Application of liquid material by permeation or saturation 16. Industrial Products Coating Painting and similar finishing of industrial products 17. Local Exhaust Ventilation A system of ventilation For collecting and removing air contaminants at the source of generation 18. Mechanical Ventilation driven air mover A system of ventilation having a power- 19. Open Surface Tank Operation An operation which involves the use of tanks of liquids with the liquid surface directly exposed to the work atmosphere These operations may include but are not limited to washing 12 WOK085 plating anodizing pickling quenching dyeing dipping tanning dressing bleaching degreasing alkaline eleaning stripping rinsing digest- ing and other similar operations 20. Personal Respiratory Protective Equipment A respirator or other device worn for the purpose of preventing the wearer from inhaling harmful amounts of air contaminants 21. Practicable Capable of being done without disturbing essential functions or essential structural elements 22. Recirculation The return of part or all of the exhaust air to any space occupied by employees 23. Shall The word shall is always mandatory 24. Spraying The application of liquid material in the form of a mist 25. Spreading The application of liquid material to a surface by brush roller flow or similar method 26. Working Area or Space The area or space normally occupied or traversed by an employee while at work 27. Work Atmosphere The atmosphere to which an employee is exposed in in the course of performing his work 12 3RESPONSIBILITY OF EMPLOYERS 1. Every employer shall effect compliance with the provisions of this rule relating to the prevention and removal of air contaminants the storage and use of flammable liquids and the provision installation operation and maintenance of control or protective equipment 2. Every employer shall instruct his employees as to the hazards of their work the use of the control or protective equipment and their responsibility for complying with this rule 3. No employer shall suffer or permit an employee to work in a room in which there exist dangerous air contaminants in a work atmosphere 4. No employer shall suffer or permit dangerous air contaminants to accumulate or remain in any factory 12-4 RESPONSIBILITY OF EMPLOYEES Every employee shall use the control and protective equipment provided for for his protection and shall comply with all provisions of this rule relating to his personal conduct 12 5EXISTING EQUIPMENT equipment Control installed prior to November 1 1958 in accordance with the provisions of the Industrial Code then in effect and which is so main- all tained is exempt from other or differont provisions of this rule while such maintenance continues 13 12-6 PREVENTION OF AIR CONTAMINATION All operations producing air contaminants shall be so conducted that the generation release or dissemination of air contaminants is kept at the lowest practicable level In any factory where the sources of air con- Lamination are by reason reason of of theitr heir extent quantity or kind incapable of producing dangerous air contaminants the provisions of this rule shall not apply 12-7 GENERAL MAINTENANCE OF EQUIPMENT All equipment used to effect compliance with this rule slidl be mamtained in good condition and in accordance with the requirements of the law and the Industrial Code 12-8 GENERAL CONTROL REQUIREMENTS Dangerous air co^taminuuntsshall be removed or controlled as prescribed an this rule 12-9 GENERAL CONTROL METHODS One or more of the following methods shall be used to prevent remove or control dangerons air contaminants 1. Substitution of a material or a method which does not produce dangerous tur contaminants 2. Local exhaust ventilation conforming to the requirements of Industrial Code Rule No. 18 3. Dilution ventilation 4. Application of water or other wetting agent 5. Enclosure or isolation 6. Other methods approved by the Board 12-10 EXHAUST SYSTEMS Every exhaust system required by this rule shall be constructed installed operated and maintained in compliance with the provisions of Industrial Code Rule No. 18 relating to Exhaust Systems 12-11 ISOLATION OR SEGREGATION OF OPERATIONS All or operations releasing or diseminating disseminating dangerous air processes contaminants shall be isolated enclosed or otherwise otherwise segregated insofar as practicable 12-12 SEPARATION OF DIFFERENT PROCESSES CREATING A HAZARD Where processes generate different air contaminants which could if intermixed result in a fire or explosion hazard such contaminants shall be exhausted by separate systems so as to eliminate such possibility 14 WCK0 86 12-13 PREVENTION OF IGNITION All processes or operations using or generating air contaminants which constitute a fire or explosion hazard shall be protected from sources of accidental ignition Unless suelt processes or operations are isolated by tight partitions or enclosures they shall not be conducted within 20 fect of any materials devices or operations which produce flames or sparks including by way of illustration but not by way of limitation engines motors welding and soldering torches All processes and operations within 20 feet of any spark or flame producing work such as welding shall be discontinued and all ignitible air contaminants flammable liquids and accumulated flammable residue shall be removed from the area of the flame or spark bazard before such work is begun 12-14 PERSONAL RESPIRATORY PROTECTIVE EQUIPMENT 12-14.1 Use Personal respiratory protective equipment shall not he used in lieu of other control methods except for protection of employees in emergencies and in the repair maintenance or adjustment of equipment or processes or upou specific approval by the Board 12-14.2 Approval Personal respiratory protective equipment shall he of a type approved by the Board for the particular class of substance or substances constituting the air contaminant Note A list of approved respiratory protective equipment may be secured from the Board 12-14.3 Maintenance Personal respiratory protective equipment shall be stored in tight containers or cabinets or in an uncontaminated area Equipment shall be cleaned serviced and repaired to maintain it in effective working condition and it shall be sterilized before use by any person other than the last wearer 12-15 GOGGLES MASKS AND SHIELDS All employees exposed to air contaminants Lending to injure or irritate the eyes shall be provided with and shall wear either safety goggles fitting chemical goggles an effective face mask or shield An em- ployee requiring prescription lenses in the normal performance of his work shall be supplied with prescription goggles or with goggles goggles designed to fit over his regular spectacles 12-16 PROTECTIVE CLOTHING All employees irritation or exposed to air contaminants which tend to cause skin skin diseases or which can be absorbed through the skin in amounts tending to injure the health shall be provided with appropriate clean protective clothing such as coveralls coats headgear gloves sleeves or aprons as needed or where suitable 12-17 EMERGENCY FLUSHING FACILITIES Emergency showers or other facilities for flushing the skin and body members shall be provided within 50 feet of the working position where employees may be exposed to sudden and severe concentrations of corrosive air contaminants 12-18 FLEXIBLE ELECTRICAL CORDS AND PORTABLE LIGHTS Flexible electrical cords used in any aren where flammable liquids are being used or stored or where flammable air contaminants may be present shall be of the conductor extra heavy service type manufactured for the purpose and shall be fully insulated and grounded All corections shall be explosion Portable lights used in such areas shall be shielded against breakage 12-19 MIXING AND THINNING OF FLAMMABLE LIQUIDS The mixing and thinning indoors of flammable liquids in unit quantities greater than 55 gallons shall be done only in a mixing or spraying room and in such manner and under such ventilation as will effect compliance of this rule Lesser quantities shall be mixed or thinned indoors only in such a rooni OP within a hood booth or working area provided with such ventilation 12-20 EMPTIED CONTAINERS Emptied drums or other containers shall not be stored indoors unless they have been purged of all contents constituting or creating dangerous air contaminants Purging shall be done in a mechanically ventilated area if performed indoors Compressed air shall not be used for purging containers 12-21 USE OF CERTAIN FLAMMABLE LIQUIDS The use of flammable liquids having a flash point of 100 F. or less determined by the Tagliabue open cup test for paint removal or cleaning or any other process in which they are unprotected and exposed shall be restricted to areas provided with mechanical ventilation creating an air movement at least 100 FPM over the surface of the work while the work is being carried on The use of benzene for such operations is prohibited A room in which such operations are being conducted shall comply with Article 12-0 of this rule 12-22 REFUSE MATERIAL In the vicinity of every process or operation to which this rule applies there shall be provided metal containers with closing covers and bearing the notice FLAMMABLE WASTE Such containers shall be used for scrapings sweepings and other waste containing or consisting of flammable material Sueli refuse shal be disposed of at the end of each day by burying burning or other safe treatment but no such refuse shall be burned in furnace 12-23 PROTECTION OF ADJACENT OCCUPANCIES 12-23.1 Wall and Ceiling Construction No employer shall suffer or permit flammable liquids to be used or dispensed in any room above or below or adjoining ono in which there is an employee occupancy unless either WCK0861 16 WCK0861 1. The room is part of a buikling which is a fireproof building or a fire resisting building complying with Industrial Code Rule No. 7 or 2. The walls and ceiling of the room within 20 feet horizontally of the working area are so constructed as to have a resistance rating of at least one hour in accordance with Industrial Code Rule No. 7 and if there be an employee occupancy below such room the floor of the room within such distance is of incombustible material and is waterproof or 3. Such room is equipped with automatic sprinkler protection conforming to Industrial Code Rule No. 20 12-23.2 Wall Openings Wall openings in every such room shall be provided with approved quarter hour closing fire doors or with approved quarter hour fire windows No such room shall have any window openings beneath or within ten feet horizontally of any fire escape or required exterior stairway 12-24 SPECIFIC OPERATIONS AND SPECIFIC CONTROL REQUIREMENTS 12-24.1 Grinding and Polishing Wheels etc. Grinding polishing buffing hrashing abrasive cutting wheel and grinding or polishing belt strap operations generating dangerous air contaminants shall be provided with local exhaust ventilation and an air cleaning device Exceptions 1. Wet grinding with other than sand stone wheels and wet polishing and buffing operations if enclosures are provided which prevent splash or dispersion of liquids abrasive compounds or mists into the workroom 2. Intricate and precision grinding dises or wheels not over one inch in diameter 3. Grinding or polishing of articles and instruments made of gold and platinum 4. Intermittent tool grinding operations used for shop purposes only 12-24.2 Woodworking Machines Woodworking operations generating dangerous air contaminants shall be provided with local exhaust ventilation and an air cleaning device 12-24.3 Melting Apparatus Vessels oporated at or in oxcess of the temperature of volatilization of toxic metals alloys or compounds which generate dangerous air contaminants shall be provided with local exhaust ventilation Vessels used for melting or cleaning such metals alloys or compounds shall be provided with exhaust ventilation when operated in such a manner as to generate dangerous air contaminants The combustion chamber when operated in such a manner as to release dangerous air conLuninants shall be provided with local exhaust ventilation Exception Portable receptacles or apparatus which have no fixed loention and are used intermittently and which produce no dangerous air contaminants 12-24.4 Open Surface Tank Operations 17 12-24.4.1 Open Surface Tank Operations Open surface tank operations creating dangerous air contaminants shall be provided with ventilation to control such contaminants See Industrial Code Rule No. 18 12-24.4.2 Classes of Operations Open surface tank operations are classified into groups in accordance with both hazard potential and rate of contaminant release as set forth in Article 18-14 of Industrial Code Rule No. JS 12-24.4.3 12-4.3 Humidity Control When heal is added to the workroom to prevent the the condensation of water vapor evaporated from opeu tanks into mist such additional heat shall be so controlled that it does not raise the wet bulb temperature in the lower feet of the workroom above 80 F. 12-24.4.4 12-24.4.4 Cleanout Doors Tanks or machines used for cleaning by solvents and having a surface vapor area of more than two square feet shall be equipped with suitable eleanout or sludge doors loented near the bottom of each tank or still Such doors shall be constructed and min- Lained so that there is no leakage of solvent when closed 12-24.4.5 Solvent Transfer 1. Transfer of flammable solvents from containers shall be by means of a hose or pipe leading to the bottom of the tank being filled Containers between which the transfer is being made shall be clectrically bonded and grounded with a resistance of less than 25 ohms 2. Volatile solvents shall not be stored or transferred in uncovered vessels 12-21.4.6 Vapor Phase Degreasing 12-24.4.6 Freeboard The level of the vapors shall be kept below the top edge of the tank by a distance equal to at least least half the tank width or 36 inches whichever is loss 12-21.4.6.2 12-21.4.6.2 Heating 1. Clas Where gas is used as fuel for heating the combustion chamber shall be light construction except for necessary combustion and flue openings Mechanically ventilated flues shall be independent independent of the exhaust duct Natural draft flues shall be provided with deaft diverters All flues shall be constructed of corrosion material Electric Electric heating units shall be constructed of materials resistant to the tank contents and shall be constructed and installed so as to prevent hot spots 12-24.63 12-244.63 Thermostatic Control Every tank shall be provided with two thermostats one of which shall be connected to control or shut the souve of heal when the contents reach a temperature not higher than 20 F in excess of the boiling point of the solvent in its uncontaminated state and the other of which shall be located above the vapor zone and be adjusted to shut the source of heat when the temperature in the zone of the thermostat is at the boiling point of the solvent above the solvent liquid level Water refrigerant or other cooling medin shall be circulated through the condenser whenever the tank in operation AI PU ee 12-244.7 Operation 1. Where tanks are provided with loading hoists the hoists shall be designed to raise and lower the work at a speed not greater than 11 feet per miunte 2. All products after immersion in solvents shall be held in the vapor zone of the tank and shall not be withdrawn from the tank until the product reaches the vapor temperature as evidenced by the stopping of vapor cou- densation on the product 3. Loading racks shall be of metal or equally impervious material 4. Projected area of product or rack shall not be greater than 34 the area of the tank 12-2448 Oleaning of Tanks 1. Before cleaning the interior of any tank the contents shall be drained off and the cleanout doors if any shall be opened All pockets in tanks or pits where vapors may collect shall he ventilated and cleared 2. Every worker engaged in cleaning the interior of any tank in which dangerous air contaminants are present shall be provided with an approved airline respirator or mask unless the work atmosphere is cleared of dangerous air contaminants by mechanical ventilation A stand worker trained to render immedinte assistance in an emergoney shall be provided during the cleaning operation 3. Floors and platforms around tanks shall be maintained in accordance with Industrial Code Rule No. 16 12-24.4.0 Welding Open Flame etc. No work involving welding open fame or other sources of ignition shall be done at or about any equipment for open surface tank operations unless such equipment has first been thoroughly cleaned of all flammable or volatile solvents and their vapors or is protected by distance or by shielding against accidental ignition or heating from such work 12-24.4.10 Special Precautions for Cyanide 1. Where rise acid and cyanide tanks are so installed and used that any of them may be contaminated with eyanide or acid such tanks shall be provided with local exhaust ventilation 2. Cyanide tanks shall not be provided with drains or overflows which will allow the tank contents to mix with liquid drained from other tanks either on the floor or in floor drams unless the cyanide drainage has been properly neutralized 33.. Cyanide salis shall be stored in a locked curlosure and set above the level of any floor on which acid carboys are stored 12-24.5 Tumbling Processes 12-24.5.1 General Provisions Tumbling processes creating dangerous air contaminants shall be provided with means to remove or control such contaminants at the point of generation Exception The above does not apply to mills drums cages or barrels which are completely enclosed during rotation and disseminate air conLaminants only when being charged or discharged Means shall be pro- vided to control such contaminants 19 12-24.6 Abrasive Blasting Operations 12-24.6.1 General Provisions Abrasive blasting operations creating dangerous air contaminants shall be enclosed as completely as practicable and shall be provided with a local exhaust system to remove the air con- taminants Exception Outdoor abrasive cleaning operations where the operator is furnished with and wears an approved air line respirator 12-24.6.2 Operation Approved air respiratory protective equipment of the supplied air type shall be used by workers employed in abrasive blasting rooms or tainels 12-21.6.3 Air Supply Air furnished to air line respiratory equipment shall be clean 12-24.7 Crushing Milling Screening Mixing and Conveying 12-24.7.1 General Provisions Crushing milling screening mixing and conveying and related processes proceses creating dangerous nir contaminants shall he enclosed and provided with local exhaust ventilation to remove or control the air contaminants at the point of generation 12-24.8 Welding Brazing Flame Cutting and Metallizing 12-24.8.1 General Requirements Welding brazing flame cutting and metallizing metalizing operations creating dangerous air contaminants shall be pro- vided with ventilation to control such contaminants 12-24.8.2 Classes of Operations Operations involving welding etc. are divided into the following classes for the purposes of this rule Class Operations in confined spaces involving toxic metals including but not limited to antimony beryllium cadmium lend mercury selenium or tellurium or involving fluorine or any alloy compound or flux containing any one or combination thereof or other dangerous air contaminants Class Operations in confined spaces involving metals alloys or compounds other than those listed in Class I. Class Operations in unconfined spaces involving metals alloys or compounds listed in Class 1 Class Operations in unconfined spaces involving metals alloys or compounds listed in Class IJ 12-24.8.3 Frotection of Operators Class [ Requirements Every employee required to work within confined space where any Class 1 operation is performed shall be furnished an approved air line respirator or supplied air helmet and the confined space shall be ventilated at a minimum rate of 1000 ... per welder within the enclosure Class II Requirements Every employee required to work within a confined space where any Class II operation is performed shall be furnished an approved air line respirator or supplied air helmet or the confined space shall be ventilated at a minimum rate of 1000 c.C.m. per welder within the enclosure WCK00863 20 WCK0863 Class III Requirements Every Class III operation shall be provided with local exhaust ventilation Class IV Requirements Every Class IV operation at a fixed location as part of a production process shall be provided with local exhaust ventilation where practicable All other Class IV operations shall be provided with dilution ventilation Exceptions The following Class IV operations are excepted from the above requirements 1. Spot Welding 2. Operations which are not usnal shop practice 3. door operations 12-24.9 Exhaust Gases From Motor Vehicles Operating in Enclosed Areas 12-24.9.1 General Provisions Enclosed areas in which internal com- bustion motor vehicles are operated and release dangerous air contaminants shall be provided with means to remove or control the fumes gases or vapors released or disseminated 12-25 INDUSTRIAL PRODUCTS COATING 12-25.1 Required Ventilation Coating shall be conducted_in_a_hood conducted_in_ahod conducted_in_ahod conducted_in_a_ho d hooth or enclosure complying with this rule and Industrial Code Rule No. 18 and provided with a minimum air velocity of 100 feet per minute in the breathing zone of any operator who works within the booth or a minimum velocity of 100 feet per minute through all openings of any booth at which the operator stands in front of the booth Exception Downdraft systems of exhaust ventilation shall provide such nu air velocity as will prevent air contamination in the breathing zone of the operator Heating Units used for comfort heating any space to which this rule applies in which flammable liquids are used handled or stored shall be confined to the use of low pressure steam or hot water or indirect foreed warm air Direct warm air heating systems may be used subject to approval by the Board Heating units shall be kept free of deposits of flaminable compounds 12-25.3 Drainage of Flammable Liquid Waste Every drainage system which conducts fiaumable liquid wastes shall be provided with traps Flammable liquid wastes shall be prevented from entering the plant drainage system 12-25.1 Maintenance and Operation 12-25.4.1 Maintenance of Equipment All equipment required by this rale shall be maintained in good repair and proper operating condition 12-25.4.2 Purging Exhaust systems shall continue in operation for a sufficient period of time after conclusion of coating operations to clear the air of dangerous air contaminants 21 12-25.4.3 12-5.43 Floor Maintenance The floor within and in the immediate immediate vicinity of the working area shall be kept clean and eleor of any waste material or any obstruction Where dust may be created by dry sweeping floors shall be wet down with a Baninable welling agent before sweeping 12-25.4.4 Passage Space A minimum passage be provided for access to every working station space of three feel shall 12-25.1.5 Containers All tanks and containers used for flammable liquids shall be of incombustible material and shall be kept closed whether full or empty except as may be necessary for operational purposes 12-25.4.0 Transfer of Flammable Liquids The transfer of flammable liquids having a flash point of less than 100 degrees F. shall be by means of a hose or pipe leading to the bottom of the vessel being filled When transferring such liquids from one metal container to any other metal container the two containers shall be bonded together electrically and properly grounded 12-25.4.7 Vehicles coating spaces under operating Vehicles shall not be taken into or out of spray their own power unless the exhaust system is 12-254.8 Use of Different Types of Coating Materials Where different of coating materials are used in the same booth or space the booth types shall be thoroughly cleaned of previous coating deposits before or space commenting the application of the new sustance 12-25.4.9 Mixing and Thinning The mixing or thinning of flammable liquids in an quantities greater than 55 gallons shall be done in a mixing or spray room provided with ventilation as specified in Industrial Code Rule No. 18. Lesser quantities when mixed indoors shall be mixed within a hood booth or other working area provided with exhaust ventilation as required in Section 12-25.1 12-25.4 Coating Removal by Use of Solvents The process shall be provided with adequate exhaust ventilation while the removal of residue paint or other coating coating material is being carried on The rate of ventilation Shall be that specified in this Artiele and Industrial Code Rule No. 18 Note Use of benzene or carbon tetrachloride for this operation is prohibited 12-25.4.11 Sanding Sanding of surfaces containing lead or lead pigment shall be done either with sandpaper welted with water or in an area provided with an exhaust system system providing ventilation at a minimum rate 6 150 um in the breathing zone of the worker 12-25,4 12 Cleaning Solvents Flammable liquids used for cleaning surfaces other than floors in a working space shall have a flash permanent Use of benzeno for this operation is prohibited point above 100 degrees F. No amable liquids shall be used to clean floors 12-25.4.13 Cleaning of Hoods and Booths Exhaust fans and the in- terior of hoods booths and ducts shall be maintained Free of accumulations of coating material 22 WCK0864 12-25.4.14 Lining of Spray Booths Material for lining of spray booths or hoods if used shall rover the inner sides of the booth or hood without overhanging and shall be maintained in contact with the walls of the booth or hood Loose sections shall be removed or shall be reapplied to the wall surface 12-25.5 Tanks Troughs and Mechanical Application 12-25.5.1 Enclosed Operations Enclosed coating or solvent cleaning operations and any subsequent drying operations operations shall be mechanically ventilated to maintain the concentration of vapors within the enclosure below 50 percent of the lower explosive limit Necessary work openings of such enclosures shall have an inward nir flow maintained by mechanical ventilation 12-25.52 Fire Protection Tanks and troughs containing flammable liquids used for manual dipping operations shall be provided with heat actuated automatically closing covers arranged so as not to interfere with exhaust ventilation Where the dipping operation is done automatically the tank and troughs shall be provided with approved fire extinguishing systems Note For additional requirements on lire protection see Section 12 27.9 12-25.5 Installation of Tanks Tanks shall be arranged to prevent prevent accidental tipping 12-25.54 Heating of Liquids Devices used for heating flammable liquids shall be provided with an antomatic temperature regulating device so arranged that the source of heat shall be automatically shut when the temperature of the liquid rises above the normal operating temperature 12-25.6 Forced Drying and Baking 12-25.6.1 Construction Ovens cabinets other enclosures and duel work used for forced drying or baking systems shall be constructed of iucombustible material with expansion joints provided in the oven framing Duet work shall be provided with two inches clearance or fourths inch of incombustible rigid insulation where the duet work passes through combustible walls floors or roofs The temperature of surfaces in contact with walls floors or rool's shall not exceed 160 degrees F. The floor surface of the oven shall be of incombustible intaerial and extend at least one foot beyond the oven outline Interior surfaces shall be smooth 12-25.6.2 Ventilation Ovens cabinets and other enclosures used for such piu pose shall be provided with mechanical ventilation to maintain the concentration of flammable vapors below 50 percent of the lower explosive level at all times Ovens shall be exhausted mechanically so that an inward air flow shall be maintained through all openings to prevent escape of dangerous air contaminants The fans of such exhaust ventilating and any recirculating systems shall be interlocked to the heat supply by means of approved air flow switches that the heat supply shall be cut unless the fan maintains the required air flow Conveyors shall be interlocked with the oven exhaust and any recirculating fans so that the conveyors conveyors cannot operate unless such fans are operating When persons are required to enter the drying enclosure the conren- tration of air contaminants shall be maintained below the danger level by mechanical ventilation 23 12-25.6.3 Explosion Vents Ovens in which flammable vapors or com- bustible guses may be present shall be equipped with explosion relief panels to relieve internal explosion pressures Such vents shall provide an unobstructed aggregate area of one square foot of panel opening to each fifteen cule feet of oven volume allowance being made for access openings and doors arranged to yield easily to internal pressure Relief panels shall if practicable be located in the top of the enclosure and be made of material other than glass which shall casily yield to internal prossure On long ovens explosion panels shall be distributed to provide efective effective explosion relief Explosion panels shall be located and arranged so as not to create a hazard to employees or other work spaces Panel edges shall be maintained free of condensate and other solid material to insure proper operation 12-25.6.4 Controls Fan switches shall be interlocked with the fuel valve through a time delay arrangement to assure proper preventilation before the fuel is ignited Where necessary enclosure doors limit switch interlock to prevent the time delay relay from operating the enclosure doors are open The fuel supply line shall be provided with a pressure switch to shut off the fuel supply when fuel supply pressure is insufficient The switch shall not reopen the fuel valve automatically An excess temperature limit switch shall be provided to cut off the fuel supply when oven temperature exceeds the safe limit The switch shall not reopen the fuel valve automatically Combustion safeguards shall be provided to shut off the fuel supply in the event of pilot light or ignition failure 12-25.6.5 Dampers Air supply or exhaust volume control dampers shall be adjusted properly and fixed securely Dampers shall be designed to prevent full closure 12-25.6.6 Combination Booths Where coating and forced drying are done alternately in the same bootli or enclosure the following requirements shall be complied : with a During coating operations the drying apparatus and electrical connee- tions and wiring thereto shall not be located within the coating enclosure nor any location where conting residue may be deposited thereon and 1. Coating apparatus drying apparatus and ventilating system of the coating enclosure shall be equipped with suitable approved interlocks so arranged that coating apparatus cannot be operated while drying apparatus is inside the coaling enclosure and the roating enclosure shall be purged of coating vapors for a period of not less than three minutes before drying apparatus can be energized the ventilating ventilating system shall continue in operation during the drying process and in the event of failure of the ventil- nting system the drying apparatas shall shut off automatically 12-25.6.7 Cleaning The inside surfaces of the drying enclosure shall be maintained clean Cleaning tools shall be of ferrons material 12-25.7 Storage 12-25.7.1 Enclosure of Storage Rooms The floor surface of rooms used for storage of flammable liquids shall be of incombustible material and shall be waterproof The room enclosure shall be of construction having the following minimum resistive rating STL 24 PTIOUYA Walls Doors Windows Ceiling if space above is occupied Floor 1 hour 3 hour 3 hour 1 hour 1 hour For rules on resistive construction sco Industrial Code Rule No. 7 12-25.7.2 Location of Storage Rooms Storage rooms for flammable liquids shall be located at or above grade and an exterior wall of the building shall form at least one wall of the room No opening in any storage room shall be located within 15 feet of any stairway elevator shaft or building exit 12-25.7.3 Floor Drainage and Door Sills Floors of storage rooms shall be arranged to provide drainage of liquids and the drain shall be provided with a trap to prevent the spread of fire Sills of combustible material at least six inches high or a six inch deep gutter covered with grating shall be provided at every door leading into a storage room Note Sec Section 12-25.3 for drainage requirements 12-25.7.4 Limitation of Quantities No more than one day's supply or 220 gallons of flammable liquid whichever is less shall be kept in a workroom Such supply unless kept in closed drums shall be kept in cabi uels as follows a Cabinets for storing quantities of flammable liquid not exceeding 110 gallons shall be of at least incombustible single wall construction and shall be vented to the outer nir b Cabinets for storing quantities of flammable liquid of more than 310 gallons but less than 220 gallons shall be of incombustible double wall construction with an air space of at least 1inches or covered wood construction throughout and shall be vented to the outer air at top and bottom e Quantities exceeding 220 gallons shall be kept in a storage room as specified in Paragraphs 12-25.7.1 12-25.7.2 and 12-25.7.3 Doors to storage cabinets shall be kept closed and Intelied 12-25.7.5 Container Covers Containers used for flammable or toxic liquids liquids shall be kept covered tightly when not in use or when being moved about whether or not they contain such material 12-25.7.0 Ventilation Storage rooms shall be provided with a mini- mum rate of ventilation of 5 cubic feet per minute per square foot of gross floor area area and the ventilation shall be maintained during transfer mixing or thinning operations of quantities less than 55 gallons For quantities in excess of 55 gallons see Paragraph 12-25.4.9 12-25.8 Electrical Equipment 12-25.8.1 Wiring and Equipment All electric wiring and electric equip ment shall be of good quality and properly installed Wiring within 10 feet of a working area or within a storage room shall be installed in sealed rigid metal conduit with explosion fittings Exception Coating operations not involving flammable solvents 26 12-25.8.2 Lighting Artificial lighting shall be by electricity Lamps within areas where flammable liquids may be used or stored or where flammable vapors may be present shall be of the totally enclosed type and shall be protected against breakage either by location or by lamp guards Lamp sockets shall be metallic shells and of the switebless type Illumination of hazardous areas through panels of transparent material is per- mitted only under the following : conditions 1. Fixed lighting units shall be used as the source of illumination 2. The panel shall effectively isolate the hazardous area from the aren in which the lighting unit is loented 3. The transparent panel shall conform to Section 18-20.1 of Code Rule No. 18 4. The installation shall be such that the normal accumulation of hazar dous residue on the exposed suriace of the panel will not be raised to a dangerous temperature by heat radiation or conduction from the souree of illumination 12-25.8.3 Control Equipment Switches and other control devices unless explosion shall be located at least 10 feet from the working aren and outside of storage raonts 12-25.8.1 Other Equipment All electrical equipment located in a storage room or the interior of coating hoods or their exhaust ducts shall he explosion Systomis designed to salvage deposits by collecting them in flammable solvent shall have the controls so arranged that the solvent pump ennot operate unless the ventilating fan is operating 12-25.8.5 Grounding of Equipment All mechanical equipment used for application of flammable liquid and all metal booths hoods tanks troughs conveyors fans and motor housings and all belts within a working working shall be grounded effectively 12-25.8.6 Electrostatic Apparatus The installation and use of electro- static appmatus shall comply with the applicable portions of this rulo and to the following requirements 12-25 8.6.1 Approval Required Only approved electrostatic apparatus shall be used 8.6.2 Conductive Coatings spraying conductive coatings This method shall not be used for 12-25-8.03 Hand Operations Manually operated spray guns or atom- izers shall not be used an electrostatic field 12-25.8.6.4 Location Electrostatic apparatus and devices used in connection with paint spraying dipping or other coating operations shall have transformers transformers and power packs located outside spray booths or enclosures and areas subject to paint deposit deposit permantly 12-25.8 Supports Electrodes and electrostatic atomizing heads shall be riendly supported and permanently installed and shall be eftertively insulated from ground 20 WCK086 12-25.8.0.6 Clearance finished and electrodes Space shall be maintained between articles being electrostatic atomizing heads or conductors of at lenst twice the sparking distance 12-25.8.0.7 Articles on Conveyors Articles on conveyors shall be so arranged and supported as to maintain the required clearances 12-25.8.6.8 Automatic Controls Electrostatic apparatus shall be equipped with automatic controls arranged to make the entire equipment dead if the ventilation of the spraying area falls below that required in Section 18-20.1 of Industrial Code Rule No. 18 or if too large an article is placed on the conveyor or if the conveyor stops 12-25.8.0.9 Guarding and Isolation of Process All parts of the equip- Cards ment carrying high potential and the electrical electrical field shall be located guarded and fenced off to provide safe isolation of the process and fences shall be of conduieting material and shall be grounded 12-25.8.6.10 Signs A suitable sign stating the sparking distance shall be posted conspicuously near the assembly Signs designating the process zone as dangerous by reason of fire and accident hazard shall be posted 12-25.8.6.11 Insulators Insulators shall meet the test standards for insulators of the Bourd for the potential used and shall be maintained elom and dry Note The standards adopted by the Board relating to the test require- ments of insulators are basically identical with the test requirements set forth in 29.1 insulators September 1944 of the American Institute of Electrical Engineers 12-26 FIRE FIGHTING EQUIPMENT 12-26.1 Automatic Sprinklers An automatic sprinkler system with sufficient heads or outlets shall be provided in all working areas of buildings two stories or more in height where flammable coating liquids are applied or stored Note For sprinkler system requirements see Industrial Code Rule No. 20 12-26.2 Automatic Extinguishers Dip tanks drain boards drip pans and drip troughs involving the use of flammable liquids shall be provided with approved automatic fire extinguishers except a Those used in electrostatic fuishing b Hand dipping tanks which with their associated drain boards drip pans and drip troughs have a vapor surface area not greater than 16 square foot 12-26.3 Hand Extinguishers There shall be provided adjacent to the inside or outside of each required exit from the room in which flammable liquids are being applied or stored at least one hand fire extinguisher approved for the control of flammable liquid fires Extinguishers containing carbon tetrachloride methyl bromide or other toxic material are prohibited for this usage In addition there shall be at least one approved extin- guisher guisher for each 2500 square feet of floor area so located that a person shall not have to travel miore than 50 feet to reach the nearest extinguisher Extinguishers shall be casily accessible and protected from injury 27 12-27 EVIDENCE OF DANGEROUS AIR CONTAMINANTS The existence of air contaminants consisting of or deriving from the substances named in the following table in relative quantities greater than those set forth as to each substance shall constituto pr^>maevidence that such contaminants are dangerous air contaminants Prima evi- dence as to whether other air contaminants or lesser concentrations than those set forth in the following table constitute dangerous air contaminants by reason of their existence in quantities tending to injure the health of employees shall include an opinion by a physician to that effect as a matter of sound clinical judgment WCK00867 WCK0867 GASES AND VAPORS Parts A. Substance per Million Acetaldehyde ..sceeeee senses Acetic acid oo. 6... an Acetic anhydride - Acetone ..e-. eee Acrolein ...--.+-- Acrylonitrile ...... Allyl alcohol ......-- Allyl propyl disulfide Ammonia ..- disulfie de eee eeei re isoamyl Amyl acetate 6... eee eres Amyl alcohol isoamyl alcohol Aniline alcohol se eee cere eee Arsine ce ecc eeec teee n eeee ees 200 10 5 1000 0.5 20 5 2 100 200 100 5 0.05 Parts A. Substance per Million Dichlorodifluoromethane ..... 1000 1 Dichloroethane 100 1 Dichloroethylene 200 Dichloroethyl ether 15 Dichloromonofluoromethane .. 1000 1,1 Dichloro 1- nitroethane 10 Dichlorotetrafluoroethane .... 1000 Diethylamine ..-.------ 6.065 25 Difluorodibromomethane .... 100 Diisobutyl ketone ........+-- 50 Dimethylaniline 5 Dimethylsulfate Dimethylsulfate Dimethylsulfate 1 Dioxane diethylene dioxide 100 Benzene Benzol ...------- Benzyl chloride .....------- Bromine eee .....--ee ene s Butadiene ee ......-e- er e Butanone ketone oe methyl eee eee Butyl acetate . Butyl alcohol Butyl amine Butyl cellosolve ...---. 6500+ Butyl mercaptan ..----.--+- Carbon dioxide ......---+005 Carbon disulfide .. wee Carbon monoxide ..--. --. Carbon tetrachloride ...... + Cellosolve Cellosolve acetate Chlorine Chlorine trifluoride ...-...-- Chlorobenzene monochloro- benzene Chloroform chloro 1 nitropropane .... Chloroprene ......--.e eee Cresol all isomer.s. Cyclohexane ......-+ Cyclohexanol ... . Cyclohexanone crseeeee Cyclohexene -. s. ee e. ee r- ere Cyclopropane ..-...+--+ +++ Diacetone alcohol .......0005 Diborane .. ee. cece ener eee ee Dichlorobenzene ...----.-- 5000 20 100 25 200 100 1 0.1 75 100 20 25 5 400 100 100 400 400 50 0.1 50 Ethyl acetate eae .....-...e Ethyl alcohol ethanol Ethylamine ..... cree eaeee Ethyl benzene .....ce sees Ethyl bromide .......------ Ethyl chloride .....-....--- Ethyl ether 6 .....- ea . e Ethyl formate .. 22. cee Ethyl mercaptan .. Ethyl silicate ..-.. ms Ethylene chlorohydrin ....-Ethylene diamine .........-Ethylene dibromide ......... Ethylene dichloride ......--Ethylene imine ......-....-- Ethylene oxide ........-.0.. 400 1000 25 200 200 1000 400 100 250 100 5 10 25 100 5 100 Fluorine .... Fluortichlorme- thane Fluortrichl. ormethane e- eee- ee Fluorotrichloromethane Formaldehyde .....-..600006 Furfural oe cece ees e eee Furfuryl alcohol ....-.....-- Gasoline 0.ee eee ..-.2..-.. 500 Heptane ....e..ces eee eee. 500 Hexane oe ee c cece e eee 500 Hexanonc ce ees eens seeeeee 100 Hexone 2.c0 ee e. e e. ee e. ee 100 Hydrazine -.....--.--.-25-- 1 Hydrogen bromide ......... 5 Hydrogen chloride ......+... 5 - Hydrogen cyanide .........- 10 Hydrogen fluoride .......... 3 Hydrogen peroxide ......... 1 223 Parts 1 per Substance Million Hydrogen selenide ......-.; 0.05 Hydrogen sulfide -.- | 20 Iodine ceccce reese cree eee 1 Isopropylamine 25 6. 0. -- Isopliorone 5 ' 0... 2.00: es Mesityl oxide .-.---.-.eee 50 Methyl acetate 200 Methyl acetylene .. 1000 Methyl alcohol ....Methyl bromide 200 .. 20 Methyl cellosolve ....---- ve 25 Methyl carbinol Methyl cellosolve acetate 25 Methyl chloride ..... 100 isobutyl me- thyl amyl alcohol .... 25 Methyl mercaptan ........-: 50 Methylal dimethoxymethane 1000 Methyl chloroform ...---++- 500 MethylcyclohexaneMethylcyclohexane .....--- : 500 Methylcyclohexanol .....--++ 100 Methylcyclohexanone .....--- 100 Methyl formate ..... 66ers 100 Methylene chloride ... --.. 500 Naptha coal tar .++Naptha petroleum seveeeee Nickel carbonyl 200 500 0.001 Nitroaniline Nitrobenzene --...-.----0+65 1 Nitroethane .. 100 Nitrogen dioxide 2.56. eee 5 Nitroglycerin 0.5 Nitromethane 100 50 Nitropropane 5 Nitrotoluene Octane oo. cece ce eee Ozone ...e cere eee ee cee 500 0.1 Parts Substance Por Milion Pentanc cece 2.0.0 ee . e Pentanone 1000 200 Perchloromethyl 0.1 Perchlorethylene 200 chloride 0.00 ee eee Phenol 2.0.00... 5 Phenylhydrazine .. Phosgene carbonyl 5 . 1 Phosphine ee .....--.++seeee Phosphorus trichloride ...--. 0.05 0.5 Propyl acetate ..--.--- eee 200 Propyl alcohol isopropyl nl- cohol 2. cer isopropyli etherec ther 400 Propyl ether isopropyl ether 500 Propylene dichloride 75 Propylene imine ......55 tae 25 Pyridine eee eee eee 0.1.60. 10 Quinone 2.6 eee e. eee. eee. eee 0.1 Stibine oo. . ere Stoddard solvent cece Styrene monomer ethylene .- (.- phenyl- phenyl Sulfur dioxide ne Sulfur hexafluoride .....- Sulfur monochloride Sulfur pentafluoride Tertiary butyl toluene 10 1 1 2 . Tetrachloroethane 5 TetrahydrofuranTetrahydrofTeturahydorfunan 200 Tetranitromethane ......---- 1 Toluene oe eee eee eee eee ree 200 Toluidine : 5 Trichloroethylene 2.2.44. . 200 Trifluoromonabromiomethano . 1000 Turpentine ee. eeeee ....--. 100 Vinyl chloride chloroethione 500 Xylene eee voce ee . e . . 200 TOXIC DUSTS FUMES AND MISTS Milligrams B. Substance per Cubic Meter Aldrin 2.0 2c0 ce. ce . eee. ee Ammate ......- : -. Antimony Arsenic 0.25 15 0.5 0.5 Barium Soluble compounds 38 Cadmium . 2... seer eee eee 38 Calcium arsenate . 0.3 Chlordane eee 2 -. Chlorinated diphenyl oxide 0.5 Chlorodiphenyl chromates ....-- ee- e 1 Chromic acid and chromates as "Cr 0.1 Crag 15 as Cyanide 2 D 5 dichlorophenoxy- acetic aci eee eed e eee 10 Milligrams B. Substance Per Cribic Meter Manganese pce. ee eee eee 6 Mercury 0.1 Methoxychlor 15 Molybdenum soluble coin- pounds . eee eee eee eee 5 Molybdenum = insoluble compounds ce crec eeeee ees 15 Organo mercurials as mer- cury ee eee ect 0.01 Parathion ......- 6.0.22 0.1 Pentachloronaphthalene ..... 0.5 Pentachlorophenol vee 0.5 Phosphorus yellow 0.1 Phosphorus pentachloride ... 1 Phosphorus pentasulfide o.... 1 Pieric acid ... see pentasulfr ide es ee 0.1 DDT 2 2- bis- cloro- 1 phenyl , 1 trichlorethane Dieldrin cs... ceeee renee 1 - 0.25 Dinitrotoluene 1.5 Dinitro 0.2 EPN nitrophenyl thi- ono benzene phosphonate.. 0.5 Ferro vanadium dust ...ceeee 1 Fluoride 1.0 cec. e ce. e e. ee 2.5 Hydroquinone ee. cess eee ee > Iron oxide Fume co... eee eee 15 Se Selenium compounds as 0.1 Solium hydroxide oe... e. 3 Sulfuric acid oo... eee eee ] TEDP tetracthyl dithiono pyrophosphate ......---- 35 Tellurium wee ece er ravceeeees 0.1 TEPP tetraethyl pyrophos- phate ee trintrophenyl-trins itrophenyl- trinitrophenyl- 0.05 Tetryl 2 4 trinitrophenyl- methylnitramine .....---- LEASE Titanium dioxide ....--..6-- LEASE Trichloronaphthalene ....--- LEASE Trinitrotoluene .. ee essere LEASE eee V dust fume Lead oo. eee ee 0.20 Vanadium V On LEASE Lead arsenate 0.2 Vanadium On LEASE Lindane ......0.. 02sec ee 0.5 Magnesium oxide lame ...... 15 Malathon .. ccc sere eee eee 15 Zine oxide fame as Zn 1515 Zirconium oo eee 1515 WCKO0868 30 WCKO086