Document Rj0okraZXG6wkOmY7ajaqd2zX

State of New York' . DEPARTMENT OF STATE PLAINTIFF'S I EXHIBIT CED-4 IT IS HEREBY CERTIFIED, that the attached Isa true copy of Industrial Code Rule No. 12 as filed with the New York State Department of State on DOS-235 (Rev. 7/89) Secretary of Stitt DEPARTMENT OF LABOR 875 Industrial Code Rule No. 12--Control of Air Contaminants in Factories (Formerly titled "Control of Air Contaminants" (page 71S, twelfth supplement;. Adopted as retitled and amended July 23,1958; effec tive November 1, 1958; filed August 1,1958. Statutory author ity &27-a, 28, 29, 200 and 299, Labor Law.) 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, proc esses and operations generating, releasing or disseminating air contami nants. In respect to contaminants resulting from such processes or opera tions the following rules, which contain references to the prevention and control of air contaminants, and other provisions of the Industrial Code in regard thereto which may be adopted after November 1, 1958, shall govern where inconsistent with this rule: Industrial Code Rule No. 4--Relating to Bakeries and Confection eries. Industrial Code Rule No. 10--Relating to Equipment, Maintenance ~ . and Sanitation of Foundries and f the Control of Dust, Gases and Fumes in Foundries. Industrial Code Rule No. 11--Relating to Milling Industry and Malt Houses. Industrial Code Rule No. 23--Relating to Protection of Persons Employed in the Erection, Repair and Demolition of Buildings or Structures. Industrial Code Rule No. 27--Relating to Construction, Equipment, Maintenance and Operation of Laundries. Industrial Code Rule No. 29--Relating to Dry Dyeing Plants and Dry Cleaning Plants. Industrial Code Rule No. 33--Relating to Control of Silica Dust in 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 Finish ing Industry. Industrial Code Rule No. 38--Relating to Radiation Protection. The provisions of Industrial Code Rule No. Iff relating to exhaust sys tems shall apply for operations not specifically covered by the above rules. 12-2. Definitions. As used herein and in connection with this rule the following terms mean: 1. Air contaminants. Air-borne substances, such as dusts, fibres, fumes, gases, mists, vapors and other impurities. 2. Air mover. Any device which produces forced air flow, such as a fan, 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 of the state of New York. 876 THIRTEENTH OFFICIAL SUPPLEMENT 6. Confined apace. 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 tending to injure the health of employees or creating a fire or explosion hazard, or in quantities greater than 60 percent 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 air. 10. Dipping. The application of industrial products coating material by means 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. IS. Fibres. Particles produced by handling, cutting, stripping, spinning or weaving of cotton, wool, fur, asbestos or other material constituted of thread-like 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 in dustrial products. 17. Local exhaust ventilation. A system of ventilation for collecting and removing air contaminants at the source of generation. 18. Mechanical ventilation. A system of ventilation having a powerdriven air mover. 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, electroplating, anodizing, pickling, quenching, dyeing, dipping, tanning, dressing, bleaching, degreasing, alkaline cleaning, stripping, rinsing, di gesting and other similar operations. 20. Personal respiratory protective equipment. A respirator or other device worn for the purpose of preventing the wearer from inhaling harm ful 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 26. 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 the course of performing his work. 124. Responsibility of employers. 1. Every employer shall effect compliance with the provisions of this rule relating to the prevention and removal of air contaminants, the stor- DEPARTMENT OF LABOR 877 age 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 responsi- bility for complying with this rule. S. 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 his protection and shall comply with all provisions of this rule relating to his personal conduct. 12.5. Existing equipment. Control equipment installed prior to November 1, 1958 in accordance with the provisions of the industrial code then in effect and which is so maintained is exempt from all other or different provisions of this rule while such maintenance continues. 12-6. Prevention of air contamination. All operations producing air contaminants shall be so conducted that the generation, release or dis semination of air contaminants is kept at the lowest practicable level. In any factory where the sources of air contamination are by reason of their extent, quantity or kind incapable of producing dangerous air con taminants, the provisions of this rule shall not apply. 12.7. General maintenance of equipment. All equipment used to effect compliance with this rule shall be maintained in good condition and in accordance with the requirements of the law and the industrial code. 12-3. General control requirements. Dangerous air contaminants shall be removed or controlled as prescribed in this rule. 12-9. General control methods. One or more of the following methods shall be used to prevent, remove or control dangerous air contaminants; 1. Substitution of a material or a method which does not produce dangerous air contaminants. 2. Local exhaust ventilation conforming to the requirements of Indus trial Code Rule No. 18. 8. 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 processes or opera tions releasing or disseminating dangerous air contaminants shall be isolated, enclosed or 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. 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 such processes or operations are isolated by tight partitions or enclosures they shall not be conducted within 20 feet of any materials, devices or operations whidh produce flames or sparks including, by way of illustration but not by way of limitation, engines, motors, welding and soldering torches. All procease* 878 THIRTEENTH OFFICIAL SUPPLEMENT and operations within 20 feet of any spark- or flame-producing work such as welding shall be discontinued and all ignitible air contaminants, flam mable liquids and accumulated flammable residue shall be removed from the area of the flame or spark hazard before such work is begun. 12-14. Personal respirator}' protective equipment. 12-14.1. Vee. Personal respiratory protective equipment shall not be used in lieu of other control methods, except for protection of employees in emergencies and in the repair, maintenance or adjustment of equip ment or processes, or upon specific approval by the board. 12-14.2. Approval. Personal respiratory protective equipment shall be 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 se cured from the board. 12-14.8. Maintenance. Personal respriatory* protective equipment shall be stored in airtight containers or cabinets or in an uncontaminated area. Equipment shall be cleaned, serviced and repaired to maintain it in effec tive working condition and it shall be sterilized before use by any person other than the last wearer. 12-18. Goggles, masks and shields. All employees exposed to air contaminants tending to injure or irritate the eyes shall be provided with and shall wear either safety goggles, close-fitting chemical goggles or an effective face mask or shield. An employee requiring prescription lenses in the normal performance of his work shall be supplied with prescription goggles or with goggles designed to fit over his regular spectacles. 12-18. Protective clothing. All employees exposed to air contami nants which tend to cause skin irritation or 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 cover alls, 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 elec trical cords used in any area where flammable liquids are being used or stored or where flammable air contaminants may be present shall be of the three-conductor, extra heavy service type manufactured for the purpose and shall be fully insulated and grounded. All connections shall be explosion-proof. 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 room or 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 con stituting 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 So i> erigiul. App*r*ntlj- iboold to "rMplntotT". DEPARTMENT OF LABOR 879 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 of 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 opera tions are being conducted shall comply with article 12-6. of this rule. 12-22. Refuse material. In the vicinity of every process or opera tion to which this rule applies there shall be provided metal containers with self-closing covers and bearing the notice "flammable waste". Such containers shall be used for scrapings, sweepings and other waste con taining or consisting of flammable material. Such refuse shall be disposed of at the end of each day by burying, burning or other safe treatment but no such refuse shall be burned in a furnace. 12.23. Protection of adjacent occupancies. 12-23.1. Wall and ceiling construction. No employer shall suffer or per mit flammable liquids to be used or dispensed in any room above or below or adjoining one in which there is an employee occupancy unless either: 1. The room is part of a building 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 fire-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 conform ing to Industrial Code Rule No. 20. 12-23.2. Wall openings. Wall openings in every such room shall be pro vided with approved three-quarter-hour self-closing fire doors or with approved three-quarter-hour fire windows. No such room shall have any vindow openings beneath or within 10 feet horizontally of any fire escape <>r required exterior stairway. 12-24. Specific operations and specific control requirements. 12-24.1. Grinding and polishing wheels, etc. Grinding, polishing, buffing, scratch-brushing, abrasive cutting-off 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 sandstone 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 discs 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 operated at or in excess 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 THIRTEENTH OFFICIAL SUPPLEMENT chamber, when operated in such a manner as to release dangerous air contaminants, shall be provided with local exhaust ventilation. Exception: Portable receptacles or apparatus which have no fixed location and are used intermittently and which produce no dangerous air con taminants. 12-24.4. Open turface tank operations. 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. 18. 12-24.4.3. Humidity control When heat is added to the workroom to prevent the condensation of water vapor evaporated from open tanks into mist, such additional heat shall be so controlled that it does not raise the wet-bulb temperature in the lower six feet of the workroom above 80*F. 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 cleanout or sludge doors located near the bottom of each tank or still. Such doors shall be constructed and main tained so that there is no leakage of solvent when dosed. 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. Con tainers between which the transfer is being made shall be electrically bonded and grounded with a resistance of less than 25 ohms. 2. Volatile solvents shall not be stored or transferred in uncovered vessels. 12-24.4.6. Vapor phase degreasing. 12-24.4.6.1. Freeboard. The level of the vapors shall be kept below the top edge of the tank by a distance equal to at least one-half the tank width or 86 inches, whichever is less. 12-24.4.6.2. Heating. 1. Gas. Where gas is used as fuel for heating, the combustion chamber shall be tight construction, except for necessary combustion and flue openings. Mechanically ventilated flues shall be independent, of the exhaust duct. Natural draft flues shall be provided with draft diverters. All flues shall be constructed of corrosion-resistant material. 2. Electric. Electric heating units shall be constructed of mate rials resistant to the tank contents and shall be constructed and in stalled so as to prevent hot spots. 12-24.4.6.S. Thermostatic control. Every tank shall be provided with two thermostats, one of which shall be connected to control or shut off the source of heat 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 off the source of heat when the temperature in the zone of the thermostat is at the boiling point of the solvent 12-24.4.6.4. Condensers. Tanks shall be equipped with condensing or cooling surfaces consisting of pipes, coils, water jackets or any DEPARTMENT OF LABOR 881 combinatios thereof located on at least two sides in the upper portion of the tank above the solvent liquid level. Water, refrigerant or other cooling media shall be circulated through the condenser whenever the tank is in operation. 12-24.4.7. Operation. 1. Where *re provided with loading hoists, the hoists shall be designed to raise and lower the work at a speed not greater than 11 feet per minute. - 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 condensation 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 two- thirds the area of the tank. 12-24.4.8. Cleaning of tanka. 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 be ventilated and cleared. 2. Every worker engaged in cleaning the interior of any timV in which dangerous air contaminants are present shall be provided with an ap proved air-line respirator or mask unless the work atmosphere is cleared of dangerous air contaminants by mechanical ventilation. A stand-by worker trained to render immediate assistance in an emergency shall be provided during Ihe cleaning operation. 8. Floors and platforms around tanks shall be maintained in accord ance with Industrial Code Rule No. 16. - 12-24:4.9. Welding, open flame, etc. No work involving welding, open flame or other sources of ignition shall be done at or about any equip ment 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 rinse, acid and cyanide tanks are so installed and used that any of them may be contaminated with cyanide or acid, such 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 either on the floor or in floor drains unless the cyanide drainage has been properly neutralized. S. Cyanide salts shall be stored in a locked enclosure and st 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 sir 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 contaminants only when being charged or discharged. Means be provided to control such contaminants. 882 THIRTEENTH OFFICIAL SUPPLEMENT 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 tunnels. 12-24.6.3. Air supply. Air furnished to air-line respiratory equipment shall be dean. 12-24.7. Crushing, milling, screening, mixing and conveying. 12-24.7.1. General provisions. Crushing, milling, screening, mixing and conveying and related processes creating dangerous air contami nants shall be 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 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 dasses for the purposes of this rule: Class I. Operations in confined spaces involving toxic metals inducting but not limited to antimony, beryllium, cadmium, lead, mercury, adenium or tdlurium, or involving fluorine or any alloy, compound or flux containing any one or combination thereof or other danger ous air contaminants. Class II. Operations in confined spaces involving metals, alloys or compounds other than those listed in dass L Class 111. Operations in unconfined spaces involving metals, alloys or compounds listed in class I. Class IV. Operations in unconfined spaces involving metals, alloys or compounds listed in dass IL 12-24.8.3. Protection of operators. Class 1 requirements. Every employee required to work within a con fined space where any dass I operation is performed shall be furn- ' ished an approved air-line respirator or supplied-air helmet, and . the confined space shall be ventilated at a minimum rate of 1000 c.f.m. per wdder within the enclosure. Class II requirements. Every employee required to work within a con fined space where any dass 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.f.m per wdder within the endosure. Class 111 requirements. Every class III operation shall be provided with local exhaust ventilation. Class IV requirements. Every dass 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. DEPARTMENT OF LABOR 88S Exceptions: The following class IV operations are excepted from the above requirements: 1. Spot welding. 2. Operations which are not usual shop practice. 3. Out-of-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 contami- ' nants 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, booth 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 an ir velocity as will prevent air contamination in the breathing zone of the-operator. 12-25:2. Beating. 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 forced 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 flammable compounds. 12-25.3. Drainage of flammable liquid waste. Every drainage system which conducts flammable liquid wastes shall be provided with traps. Flam mable liquid wastes shall be prevented from entering the plant drainage vstem. 12-25.4. Maintenance and operation. 12-25.4.1. Maintenance of equipment. All equipment required by this rule 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 dear' the air of dangerous air contaminants. 12-25.4.3. Floor maintenance. The floor within and in the immediate vicinity of the working area shall be kept clean and dear of any waste material or any obstruction. Where dust may be created by dry sweeping, floors shall be wet down with a nonflammable-wetting agent before sweeping. 12-25.4.4. Passage space. A minimum passage space of three feet shall be provided for access to every working station. 12-25.4.5. Containers. All tanks and containers used for flammable liquids shall be of incombustible material and shall be kept dosed whether full or empty, except as may be necessary for operational purposes. .12-25.4.6. 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. MW* cc.-a---- 'iu imier.1**'--.'.`feMV1'! -- IrsEStt A+***+*T f aSAw^<S5Kl^^2./,;gr.y*tf-y **&r.r *.*.J&.-27 .ZZ&Z__ ^ *--* >>n i: err.' ./jv **<.** r?ag^g^rgg ,___ ..., '(*^f/iO .-*$* we*i^f *uSfciinni x#`ivS-*i s-v1 -?xz -. - _** ;"y^`r-*;^.^*;*,-C* " -- r.TaSS--`.~-.-:Vi 884 THIRTEENTH OFFICIAL SUPPLEMENT 12-25.4.7. Vehicles, Vehicles shall not be taken Into or out of spray coating spaces under their own power, unless the exhaust system is operating. 12-25.4.8. V*e of different types of coating materials. Where different types of coating materials are used in the same booth or space, the booth or space shall be thoroughly cleaned of previous coating deposits before commencing the application of the new substance. 12-25.4.9. Mixing and thinning. The mixing or thinning of flammable liquids in unit 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 ven tilation as required in section 12-25.1. 12-25.4.10. Coating removal by use of solvents. The process shall be provided with adequate exhaust ventilation while the removal of residue paint or other coating materia] is being carried on. The rate -of ventila tion shall be that specified in this article 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 pig ment shall be done either with sandpaper wetted with water or in an area provided with an exhaust system providing ventilation at a mini, mum rate of 150 f.pjn. in the breathing zone of the worker. 12-25.4.12. Cleaning solvents. Flammable liquids used for cleaning permanent surfaces other than floors in a working space shall have a flash point above 100 degrees F. Use of benzene for this operation is prohibited. No flammable liquids shall be used to dean floors. 12-25.4.18. Cleaning of hoods and booths. Exhaust fans and the in terior of hoods, booths and ducts shall be maintained free of accumula tions of coating material. 12-25.4.14. Lining of spray booths. Material for lining of spray booths or hoods, if used, shall cover 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 deaning operations and any subsequent drying operations shall be mechanically ventilated to maintain the concentration of vapors within the endosure below 60 per cent of the lower explosive limit. Necessary work openings of such endosures shall have an inward air flow maintained by mechani cal ventilation. 12-25.5.2. Fire protection. Tanks and troughs containing flammable liquids used for manual dipping operations shall be provided with heatactuated automatically dosing covers arranged so as not to interfere with exhaust ventilation. Where the dipping operation is done automati cally the tank and troughs shall be provided with approved flreextinguishing systems. Note: For additional requirements on fire protection, see section 12-27.9. 12-25.5.8. Installation of tanks. Tanks shall be arranged to prevent accidental tipping. S DEPARTMENT OF LABOR 885 12-25.5.4. Heating of liquids. Devices used for heating flammable liquids shall be provided with an automatic temperature-regulating de vice so arranged that the source of heat shall be automatically shut off 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 duet . work used for forced drying or baking systems shall be constructed of incombustible material with expansion joints provided in the oven fram ing. Duct work shall be provided with two inches clearance or three- fourth inch of incombustible rigid insulation where the duct work passes through combustible walls, floors or roofs. The temperature of surfaces in contact with walls, floors or roofs shall not exceed 160 degrees F. * The floor surface of the oven shall be of incombustible material 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 purpose 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 venti lating and any recirculating systems shall be interlocked to the heat supply by means of approved air flow switches so that the heat supply shall be cut off unless the fan maintains the required air flow. Conveyors shall be interlocked with the oven exhaust and any recirculating fans so that the conveyors cannot operate unless such fans are operating. When persons are required to enter the during enclosure, the concen tration of air contaminants shall be maintained below the danger level by mechanical ventilation. 12-25.62. Explosion vents. Ovens in which flammable vapors or com- nustible gases 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 15 cubic 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 easily yield to internal pressure. On long ovens explosion panels shall be distributed to provide 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 shall have a limit switch interlock to prevent the time delay relay from operating unless 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. 886 THIRTEENTH OFFICIAL SUPPLEMENT Combustion safeguards shall be provided to shut off the fuel supply in the event of pilot light or ignition failure. 12-25.6.6. Dampen. 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 booth or enclosure, the following require ments shall be complied with: a. During coating operations, the drying apparatus and electrical connections and wiring thereto shall not be located within the coating enclosure nor in any location where coating residue may be deposited thereon, and b. Coating apparatus, drying apparatus and ventilating system of the coating endosure shall be equipped with suitable approved inter locks so arranged that coating apparatus cannot be operated while drying apparatus is inside the coating endosure and the coating en dosure shall be purged of coating vapors for a period of not less than three minutes before drying apparatus can be energized: the ventil ating system shall continue in operation during the drying process and in the event of failure of the ventilating system, the drying apparatus shall shut off automatically. 12-25.6.7. Cleaning. The inside surfaces of the drying endosure shall be maintained dean. Cleaning tools shall be of nonferrous material. 12-25.7. Stonge. 12-25.7.1. Enclosure of stonge rooms. The floor surface of rooms used for storage of flammable liquids shall be of incombustible material and shall be waterproof. The room endosure shall be of construction having die following minimum fire-resistive rating: Walls 1 hour Doors Windows Ceiling(if space above is occupied) % hour % hour 1 hour Floor 1 hour (For rules on fire-resistive construction see Industrial Code Rule No. 7.) ' 12-25.7.2. Location of stonge rooms. Storage rooms for flammable liquids shall be located at or above grade and an exterior wall of die 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. 12-25.7.8. Floor dninage and door sills. Floors of storage rooms shall be arranged to provide drainage of liquids and the drain shall be pro vided with a trap to prevent the spread of fire. Sills of noncombustible material at least six inches high or a six-inch deep gutter covered with gradng shall be provided at every door leading into a storage room. Note: See section 12-25.8 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 work room. Such supply, unless kept in closed drums, shall be kept in cabinets 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 air. DEPARTMENT OF LABOR 887 b. Cabinets for storing quantities of flammable liquid of more than 110 gallons but less than 220 gallons shall be of incombustible double wall construction with an air space of at least one and one-half inches or metal-covered wood construction throughout and shall be vented to the outer air at top and bottom. c. Quantities exceeding 220 gallons shall be kept in a storage room as specified in paragraphs 12-25.7.1, 12-25.7.2 and 12-25.7.8. Doors to storage cabinets shall be kept dosed and latched.----------------- 12-25.7.5. Container covers. Containers used for flammable or toxic liquids shall be kept covered tightly when not in use or when being moved about whether or not they contain such material. 12-25.7.6. Ventilation. Storage rooms shall be provided with a mini mum rate of ventilation of five cubic feet per minute per square foot of gross floor area and the ventilation shall be maintained during trans fer, 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 electrical wiring and electric equipment 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-proof fittings. Exception: Coating operations not involving flammable solvents. 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 endosed type and shall be protected against breakage either by location or by lamp guards. Lamp sockets shall be nonmetallic shells and of the switchless type. Illumination of hazardous areas through panels of transparent material is permitted 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 area in which the lighting unit is located. 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 hazardous residue on the exposed surface of the panel will not be raised to a dangerous temperature by heat radiation or conduction from the source of illumination. 12-25.8.3. Control equipment. Switches and other control devices, un less explosion proof, shall be located at least 10 feet from the working area and outside of storage rooms. 12-25.8.4. Other equipment. All electrical equipment located in a stor age room or the interior of coating hoods or their exhaust ducts shall be explosion proof. Systems designed to salvage deposits by collecting them in flammable solvent shall have the controls so arranged that the solvent pump cannot operate unless the ventilating fan is operating. 12-25.8.5. Grounding of equipment. All mechanical equipment used for the application of flammable liquid and all metal booths, hoods, tank*, troughs, conveyors, fans and motor housings and all belts within a work ing area shall be grounded effectively. 12-25.8.6. Electrostatic apparatus. The installation and use of electro static apparatus shall comply with the applicable portions of this rule and to the following requirements: THIRTEENTH OFFICIAL SUPPLEMENT 12-25.8.6.1. Approval required. Only approved electrostatic appara tus shall be used. 12-25.8.6.2. Conductive coatings. This method shall not be used for spraying conductive coatings. 12-25.8.6.3. Band operationa. Manually operated spray guns or atomizers shall not be used in 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 and power packs located outside spray booths or enclosures and areas subject to paint deposit. 12*25.8.6.5. Supports. Electrodes and electrostatic atomizing beads shall be rigidly supported and permanently installed and shall be effec tively insulated from ground. 12*25.8.6.6. Clearance. Space shall be maintained between articles being finished and electrodes, electrostatic atomizing heads or conduc tors of at least twice the sparkling distance. 12*25.8.6.7. 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 equip ment 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. 12-25.8.6.9. Guarding and isolation of process. All parts of the equipment carrying high potential and the electrical field shall be located, guarded and fenced off to provide safe isolation of the process. Guards and fences shall be of conducting 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 board for the potential used and shall be main tained clean and dry. Note: The standards adopted by the board relating to the test re quirements of insulators are basically identical with the test requirements set forth in C-29.1--September 1944 of the Ameri can Institute of Electrical Engineers. 12-26. Fire-fighting equipment. 12-26.1. Automatic sprinklers. An automatic sprinkler system with suffi cient 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 finishing. b. Hand dipping tanks which with their associated drain boards, drip pans and drip troughs have a vapor surface area not greater 16 square feet. 12-26.8. Band extinguishers. There shall be provided adjacent to the Inside or outside of each required exit from the room in which flammable DEPARTMENT OF LABOR 889 liquids are being applied or stored at least one band 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 lease one approved extinguisher for each 2,500 square feet of floor area so located that a person shall not have to travel more than 50 feet to reach the nearest extinguisher. Ex tinguishers shall be easily accessible and protected from injury. . _ 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 constitute prima facie evidence that such contami nants are dangerous air contaminants. Prima facie evidence 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. Gases and Vapor* A. Subitanee Parti per Million Acetaldehyde 200 Acetic acid 10 Acetic anhydride 5 Acetone 1000 Acrolein 0.5 Acrylonitrile 20 *''yl alcohol 5 /I propyl disulfide 2 ammonia 100 Amyl acetate 200 Amyl alcohol (isoamyl alcohol) 100 Aniline 5 Arsine 0.05 Benzene (benzol) Benzyl chloride Bromine Butadiene Butanone (methyl ethyl ketone) Butyl acetate Butyl alcohol Butyl amine Butyl cellosolve Butyl mercaptan 25 1 1 1000 250 200 100 5 200 10 Carbon dioxide Carbon disulfide Carbon monoxide Carbon tetrachloride Cellosolve Cellosolve acetate Chlorine Chlorine trifiuoride 5000 20 100 25 200 100 1 0.1 A. Substance Parte per Million Chlorobenzene (monochlorobenzene) Chloroform 1-Chloro -1- nitropropane ' Chloroprene Cresol (all isomers) Cyclohexane Cydohexano! Cyclohexanone Cyclohexene Cyclopropane 75 100 20 25 5 400 100 100 400 400 Diacetone alcohol 50 Diborane . 0.1 o-Dichlorobenzene -' 50 Dichlorodifiuoromethane 1000 1.1- Dichloroethane 100 1.2- Dichloroethylene 200 Dichloroethyl ether 15- Dichloromonofluoromethane 1000 1,1-Dichloro -1- nitroethane 10 Dichlorotetrafluoroethane 1000 Diethylamine 25 Difluorodibromomethane. 100 Diisobutyl ketone 50 Dimethylaniline 5 Dimethylsulfate 1 Dioxane (diethylene dioxide) 100 Ethyl acetate Ethyl alcohol (ethanol) Ethylamine Ethyl benzene Ethyl bromide 400 1000 25 200 200 890 THIRTEENTH OFFICIAL SUPPLEMENT A. Substance Ethyl chloride Ethyl ether Ethyl formate Ethyl mercaptan Ethyl silicate Ethylene chlorohydrin Ethylene diamine Ethylene dibromide Ethylene dichloride Ethylene imine Ethylene oxide Part* per Million 1000 400 100 250 100 5 10 25 100 5 100 Fluorine Fluorotrichloromethane Formaldehyde Furfural Furfuryl alcohol 0.1 1000 5 6 200 Gasoline 500 Heptane Hexane Hexanone Hexone Hydrazine Hydrogen bromide Hydrogen chloride Hydrogen cyanide Hydrogen fluoride Hydrogen peroxide Hydrogen selenide Hydrogen sulfide 500 500 100 100 1 5 5 10 8 1 0.05 20 Iodine Isophorone Isopropylamine 1 25 5 Mesityl oxide Methyl acetate Methyl acetylene Methyl alcohol Methyl bromide Methyl cellosolve Methyl cellosolve acetate Methyl chloride Methyl isobutyl carbinol (methyl amyl alcohol) Methyl mercaptan Methylal (dimethoxymethane) Methyl chloroform Methylcyclohexane Methylcylohexanol Methylcydohexanone Methyl formate Methylene chloride 60 200 1000 200 20 25 25 100 25 50 1000 500 600 100 100 100 600 A. Substance Naptha* (coal tar) Naptha* (petroleum) Nickel carbonyl p-Nitroaniline Nitrobenzene Nitroethane Nitrogen dioxide Nitroglycerin Nitromethane 2-Nitropropane Nitrotoluene . Part* per Million 200 600 0.001 1 1 . 100 6 0.5 100 60 6 Octane Ozone 600 0.1 Pentane 1000 Pentanone 200 Perchloromethyl mercaptan 0.1 Perchlorethylene 200 Phenol 6 Phenylhydrazine 5 Phosgene (carbonyl chloride) 1 Phosphine 0.05 Phosphorus trichloride 0.5 Propyl acetate 200 Propyl alcohol (isopropyl alcohol) 400 Propyl ether (isopropyl ether) 500 Propylene dichloride 75 Propylene imine 26 Pyridine 10 Quinone 0.1 Stibine Stoddard solvent Styrene monomer (phenyl ethylene) Sulfur dioxide Sulfur hexafluoride Sulfur monochloride Sulfur pentafluoride 0.1 500 200 10 1000 1 0.025 p-Tertiary butyl toluene 10 1,1, 2, 2 Tetrachloroethane 5 Tetrahydrofuran 200 Tetranitromethane 1 Toluene 200 o-Toluidine 5 Trichloroethylene 200 Trifiuoromonobromomethane 1000 Turpentine 100 Vinyl chloride (chloroethene) 500 Xylene 200 Be la original. Appanstfr iboold bo "Nipbths' DEPARTMENT OF LABOR 891 Toxic DusU. Fumes and Mists B. Substance Aldrin Animate Antimony Arsenic Milligrams per Cubic Meter 0.25 15 0.5 0.5 Barium (soluble compounds) 0.5 Cadmium Calcium arsenate Chlordane Chlorinated diphenyl oxide Chlorodiphenyl Chromic acid and chromates as CrOi Crag herbicide Cyanide as CN 2, 4D (2, 4-dichlorophenoxy- acetic acid) 0.1 0.8 2 0.5 1 0.1 15 5 10 DDT (2,2- bis- (p-chlorophenyl 1,1,1-trichlorethane)) 1 Dieldrin 025 ^initrotoluene 1.5 nitro-o-cresol 02 EPN (ethyl-p-nitrophenyl thiono benzene phosphonate) 0.5 Ferro vanadium dust Fluoride 1 2.5 Hydroquinone 2 Iron oxide fume 15 B. Substance Milligrams per Cubic Meter. Malathon --' Manganese Mercury Methoxychlor Molybdenum (soluble compounds) Molybdenum (insoluble compounds) 15 6 0.1 15 5 15 Organo mercurials (as mercury) 0.01 Parathion Pentachloronaphthalene Pentachlorophenol Phosphorus- (yellow) Phosphorus pentachloride Phosphorus pentasuldde Picric acid Selenium compounds (as Se) Sodium hydroxide Sulfuric acid 0.1 0.5 0.5 0.1 1 1 0.1 0.1 2 1 TEDP (tetraethyl dithiono pyrophosphate) Tellurium TEPP (tetraethyl pyrophosphate) Tetryl (2, 4, 6-trinitro- phenylmethylnitramine) Titanium dioxide Trichloronaphthalene . Trinitrotoluene 02' 0.1 0.05 L6 15 5 1.5 Lead Lead arsenate Lindane Magnesium oxide fume 020 Vanadium (V>0 dust) 02 Vanadium (V0 fume) 0.5 Zinc oxide fume (as Zn) 15 Zirconium 02 0J 16 5 jci'r: 5jKp=i-=-^*' r^t sSSgg^s&gES^&g 892 THIRTEENTH OFFICIAL SUPPLEMENT C. Substance Mineral Duets Million Tartides per Cubic Foot* Asbestos ' Dust (nuisance, no free silica) Mica (below 6% free SiO>) Portland cement `-- Silica: Class I (below 5% free SiO) Class II (6% to 50% free SiO.) Class III (above 50% free SiO) Slate (below 6% free SiO*) Soapstone (below 5% free SiO*) Tale Total dust (below 5% free SiO*) 5 50 20 50 50 20 5 60 20 20 50 * Note'. Using the light field low-power method of count as described in U. S. Public Health Report 47 No. 12, Ms 18, 1932, pp. 669-672 or its eqiuvalent, and a standard type impinger or other equivalent instrument for taking atmos pheric dust samples. 22-25. Approved devices or materials. Any device or material which the board has approved pursuant to section 27a of the Labor Law for use in complying with this rule may be so used as if by this rule specifically author ized any other general or special provision of this rule notwithstanding. 22-29. Severability. If any provision of this rule or the application thereof to any person or circumstance is held invalid, such invalidity shall not affect other provisions or applications of this rule which can be given effect without the invalid provisions or applications and to this end the provisions of this rule are declared to be severable. gustrial Code Rule No. 14----Construction, Install^ ton. Inspection and Maintenance of Steam Boih 24.8. Qualification and commissioning of inspector 14-5.1. (As ahaended November 18, 1958; effectiveNovember 18,1958; filed November 25/1^58. Statutory authority 27-a/28, 29 and 204, Labor Law). Upon recommendation of the examining board, a certificate of com petency and commission aSsM inspector of steOm boilers shall be issued by the industrial commissionertojmrsons atjeast 25 years of age who are in the employ of insurance companty,whpfuccessfully pass a written exami nation as to their knowledge of thsreonstruction, installation and main tenance of steam boilers and th|k^appurtenances. Candidates taking such examinations must have had five years orpnctical satisfactory experience in boilermaking, boiler installation and inspection, or boiler shop practice, or operation and maintenance of steam boilers>Technical education shall, in proportion to itsjfiluc, be given credit as equivalent to experience not to exceed two yeprdT Such examinations shall be conducted by an board appoinpw by the industrial commissioner, which sh^U be composed of one representative of each of the following interests risailer manufacturms; insurance companies, operating engineers. Bureau oxSBpiler Inspe^tifin of the Department of Labor and such others as the industrial ` sioner may designate. mm