Chapter 11.22 INDUSTRIAL ESTABLISHMENTS*

For department of health services Rules and Regulations on environmental management and occupational health, see Parts 2 and 3 of Appendix 1 of Title 11 of this code.

Part 1 GENERAL PROVISIONS AND DEFINITIONS

Article 1 GENERAL PROVISIONS

11.22.010 Applicability of provisions.

This Division 1 applies to all industrial establishments in which articles are manufactured, processed, repaired, cleaned, sorted or renovated, in whole or in part, and those establishments practicing the healing arts. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1100, 1959.)

11.22.020 Purpose.

The purpose of this Division 1 is to prescribe minimum sanitary and occupational health requirements for the protection of the health of all employees in establishments covered by this Division 1. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1101, 1959.)

Article 2 DEFINITIONS

11.22.030 Adequate or approved.

“Adequate or approved” means in conformance with good health practices which, in the opinion of the director, are sufficient to protect the health and well-being of the employee. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1102, 1959.)

11.22.040 Breathing zone.

“Breathing zone” means the area or zone of a worker’s head during normal operation of a process while at work. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1103, 1959.)

11.22.050 Capture velocity.

“Capture velocity” means the velocity of air at specific points or zones which causes air contaminants to flow to an exhaust system. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1104, 1959.)

11.22.060 Conveying velocity.

“Conveying velocity” means the air speed determined to be necessary to convey a contaminant through a duct or system. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1105, 1959.)

11.22.070 Corrosive substance.

“Corrosive substance” means any substances which, in contact with living tissue, will cause destruction of tissue by chemical action, but shall not refer to action on inanimate surfaces. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1106, 1959.)

11.22.080 Dermatitis.

“Dermatitis” means inflammation of the surface of the skin or epidermis. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1107, 1959.)

11.22.090 Employee.

“Employee” means any person, including an owner or partner, who works in or is employed in a place of employment. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1108, 1959.)

11.22.100 Employer.

“Employer” means an person who, directly or indirectly or through an agent or any other person, employs or exercises control over the wages, hours or working conditions of a man, woman or minor. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1109, 1959.)

11.22.110 Gassing.

“Gassing” means the rate of generation of contaminant. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1110, 1959.)

11.22.120 General ventilation.

“General ventilation” means the introduction of uncontaminated air into an area, room or building, or exhausting air therefrom by other than local exhaust ventilation systems. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1111, 1959.)

11.22.130 Hood.

“Hood” means any air-intake device connected to an exhaust-ventilation system or duct to capture and remove dusts, fumes, gases, vapors, mists, smoke, heat, or otherwise provided local exhaust ventilation. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1112, 1959.)

11.22.140 Irritant.

“Irritant” means any substance, not necessarily corrosive as defined herein, but which on either immediate, prolonged or repeated contact with normal living tissue will conduct a local inflammatory reaction. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1113, 1959.)

11.22.150 Lateral exhaust.

“Lateral exhaust” means local exhaust ventilation designed with slots at the periphery or along the midsection of a surface or tank for the purpose of preventing escape of significant amounts of contaminants to the breathing zone. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1114, 1959.)

11.22.160 Local exhaust ventilation.

“Local exhaust ventilation” means a ventilating system intended to capture air contaminants at or near their point of origin and transport them to an approved exhaust system. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1115, 1959.)

11.22.170 Maximum acceptable concentrations.

“Maximum acceptable concentrations” means the concentration of gas, vapor, fume, dust, mist or similar air contaminants adopted in Part VII of the Rules and Regulations established by authority of Section 11.02.160 and set out in Appendix 1 to this Title 11. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1121, 1959.)

11.22.180 Occupational disease.

“Occupational disease” means any disease or infection, including dermatitis, which is peculiar to the industrial process, trade or occupation in each instance, and which arises out of and in the scope of employment, and to which an employee is not ordinarily subjected or exposed, other than during a period of regular, actual employment therein. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1116, 1959.)

11.22.190 Occupational health hazard.

“Occupational health hazard” means any risk to an employee’s health associated with or arising out of his occupation, or occupational work or environment. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1117, 1959.)

11.22.200 Place of employment or industrial establishment.

“Place of employment” or “industrial establishment” means every place where persons are employed. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1118, 1959.)

11.22.210 Sanitary condition.

“Sanitary condition” means that physical condition which will tend to prevent the incidence and spread of disease. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1119, 1959.)

11.22.220 Strong sensitizer.

“Strong sensitizer” means a substance which will cause, on normal living tissue, through an allergic or photodynamic process, a hypersensitivity which becomes evident on reapplication of the same substance, and which is so recognized by national authority. Before designating any substance as a strong sensitizer, the department, upon consideration of the frequency of occurrence and severity of the reaction, shall find that the substance has a significant potential for causing hypersensitivity. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1120, 1959.)

11.22.230 Toilet facilities.

“Toilet facilities” means fixtures maintained within toilet rooms for the purpose of defecation. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1122, 1959.)

11.22.240 Toilet room.

“Toilet room” means a room maintained within or on the premises of any place of employment containing toilet facilities for use of employees, and shall be used for no other purpose. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1123, 1959.)

11.22.250 Toxic substance.

“Toxic substance” means any substance, other than a radioactive substance, which has the capacity to produce personal injury or illness to man through ingestion, inhalation or absorption through any body surface. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1124, 1959.)

11.22.260 Urinal.

“Urinal” means a fixture connected with a sewer and maintained within a toilet room for the sole purpose of urination. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1125, 1959.)

11.22.270 Water closet.

“Water closet” means a toilet facility which is connected to a sewer and flushed with water under pressure. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1126, 1959.)

Part 2 WATER SUPPLY[19]

11.22.280 Requirements generally--Supply approval by director.

Every place of employment where two or more persons are employed shall be adequately supplied at all times with running water under pressure for use by human beings for both drinking and face and body washing purposes. Such supply and the facilities, and the location of such facilities, must be approved by the director of public health. (Ord. 2006-0040 § 95, 2006: Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1127, 1959.)

11.22.290 Drinking water--Open containers prohibited.

No employer or employee shall provide an open container, such as barrels, pails or tanks, for drinking water for general use, from which the water must be dipped or poured, whether fitted with a cover or not. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1133, 1959.)

11.22.300 Common use of drinking containers prohibited.

No employer shall provide or expose for common use, or permit to be so provided or exposed, or allow to be used in common, any cup, glass or other receptacle used for drinking purposes. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1129, 1959.)

11.22.310 Drinking water--Cooling container restrictions.

In all instances where drinking water is cooled by ice, the construction of the container shall be such that the ice does not come in direct contact with the water. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1128, 1959.)

11.22.320 Drinking cups--Provision and disposal.

Where single-service drinking cups are supplied (to be used once), there shall be provided at all times an approved, sanitary container for the unused cups, and also a receptacle for disposing of the used cups. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1130, 1959.)

11.22.330 Drinking fountains--Design and quantity.

When sanitary drinking fountains are provided in compliance with Section 11.22.280, they shall be of the angle-jet type, with guard, and in good working order at all times, and must be of a design approved by the director. When such drinking fountains are provided, at least one must be provided for each 50 employees, or fraction thereof. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1131, 1959.)

11.22.340 Drinking fountains--Drainage.

The drain from any drinking fountain shall be connected to an acceptable drainage system in an approved manner. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1132, 1959.)

Part 3 TOILET FACILITIES

11.22.350 Requirements generally--Quantity and location.

A. Every industrial establishment shall provide and have available for use in good working order at all times an adequate number of water closet, separate for each sex, in accordance with the following table:

Table No. 1

Number of Persons of Given Sex	Number of Water Closets*
1--9	1
10--24	2
25--49	3
50--74	4
75--100	5
Over 100	1 for each additional 30 persons

* If the total number of employees of an establishment numbers less than five and only one toilet is available, it may be used by both sexes.

B. Urinals may be substituted for a certain number of the water closet facilities specified in the foregoing table as follows:
One urinal may be substituted for one water closet, provided the total number of water closets is at least twice the total number of urinals.
C. Toilet facilities shall be provided so as to be readily accessible to all employees. Toilet facilities so located that employees must use more than one floor-to-floor flight of stairs to or from them are not considered as readily accessible. As far as is practicable. toilet facilities shall be located within 200 feet of all locations at which workers are regularly employed. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1134, 1959.)

11.22.360 Toilet paper required.

An adequate supply of toilet paper with suitable holder shall be provided for each water closet at all times. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1135, 1959.)

11.22.370 Covered receptacles required in women’s rooms.

Covered receptacles shall be kept at all times in all toilet rooms used by females. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1136, 1959.)

11.22.380 Floors, walls and ceilings--Materials and Maintenance.

The floors, walls and ceilings of all toilet rooms shall be of a nonabsorbent material that can be easily cleaned and maintained in good repair. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1137, 1959.)

11.22.390 Installation of toilet fixtures.

Every watercloset bowl shall be set entirely free and open from all enclosing woodwork, and shall be so installed that the space around the fixture may be easily cleaned. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1140, 1959.)

11.22.400 Venting required.

All inside toilet rooms shall be effectively vented to the outside air. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1139, 1959.)

11.22.410 Window screens required.

All outside windows of all toilet rooms shall be equipped with suitable and effective insect screens. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1138, 1959.)

Part 4 LUNCH ROOMS AND WASHING FACILITIES

11.22.420 Lunch rooms--Requirements generally.

In all places of employment where employees are permitted to lunch on the premises, an adequate space suitable for that purpose shall be provided for the maximum number of employees who may use such space at one time. Such space shall be separate and apart from any location where there is an exposure to toxic materials. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1146, 1959.)

11.22.430 Eating or storing food--Protection from toxic substances.

No employee shall be permitted to store or eat any part of his or her lunch or other food at any time where there are present any toxic materials or other substances that may be injurious to health. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1148, 1959.)

11.22.440 Disposal receptacles required.

A covered receptacle shall be provided at all times for the disposal of all waste food. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1147, 1959.)

11.22.450 Washing facilities--Requirements generally.

Adequate facilities for maintaining personal cleanliness shall be provided in every place of employment. Their number and proximity to the employees shall be such as to fulfill properly the requirements set forth in Division 1 of this title, and shall be maintained in a clean and sanitary condition at all times. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1141, 1959.)

11.22.460 Washing facilities--Quantity.

At least one lavatory (washbasin) shall be provided in every toilet room, or adjacent thereto, with water under pressure, and in good working order at all times, for every 10 employees (men or women) or portion thereof, up to 100 persons, and one lavatory (washbasin) for each additional 15 persons or portion thereof. 24 inches of sink with individual faucet shall be considered as equal to one lavatory. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1142, 1959.)

11.22.470 Washing facilities--Soap and towels.

Soap and individual towels shall be provided by the employer, and proper receptacles maintained at all times for disposing of used towels. Other type of drying apparatus may be substituted for towels, if approved by the director. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1144, 1959.)

11.22.480 Washing facilities--Where poisonous or irritating materials are present.

Where there is exposure to skin contamination with poisonous, infectious or irritating materials, one lavatory shall be provided for each five persons. Where wash sinks or circular basins are used 24 lineal inches of wash sink or 18 inches of a circular basin, when provided with water outlets for such space, shall be considered equivalent to one lavatory. In all instances, a suitable cleansing agent shall be provided at each wash place. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1143, 1959.)

11.22.490 Additional change rooms and washing facilities required when.

Employers shall provide change rooms, showers, baths or lavatories having hot and cold running water, soap and towels, in every place of employment where lack of such facilities may constitute an occupational health hazard and may result in an occupational disease. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1145, 1959.)

Part 5 MAINTENANCE, STORAGE AND SANITATION

11.22.500 Lighting facilities.

Each place of employment shall be equipped with such lighting facilities that may be necessary to adequately and effectively illuminate all operations and areas. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1163, 1959.)

11.22.510 Sanitation.

All places of employment shall be maintained in a reasonably clean and sanitary condition. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1161, 1959.)

11.22.520 Housekeeping.

All plants, rooms and areas, and equipment or supplies used therein or in connection therewith, shall be kept in a clean and sanitary condition. A program shall be carried out for regularly removing dust, spillage and debris at regular intervals. The establishment shall be maintained in a reasonably orderly condition as may be necessary for good housekeeping practices requisite to compliance with these regulations. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1164, 1959.)

11.22.530 Aisles, passageways and floors.

Permanent aisles and passageways shall be provided and kept clear, and the floor surfaces thereof shall be kept in good repair. Where necessary to the maintenance of clear passageways, such aisles and passageways shall be defined by painting lines or other clear markings. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1166, 1959.)

11.22.540 Fans and other ventilation equipment.

Fans, fan blades, hoods, ducts, filters and baffles shall be regularly inspected, and shall be cleaned and maintained, repaired or replaced as often as necessary to maintain performances of the system reasonably within the intended design requirements. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1167, 1959.)

11.22.550 Drainage from wet processes.

Where wet processes are used, provision shall be made so drainage therefrom does not create a hazardous or unsanitary condition. Drainage shall be arranged so as not to regularly run across the floor or walkways. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1165, 1959.)

11.22.560 Stacking of materials--Unopened containers.

Full, unopened drums and boxed carboys, if stacked upright and two or more layers high, shall be staggered or with pallets between layers, so as to provide stability to such stacks. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1169, 1959.)

11.22.570 Stacking of materials--Opened carboys prohibited.

Boxed carboys which have been opened shall not be stacked. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1171, 1959.)

11.22.580 Storage--Opened drums.

Opened drums shall be stored upright and shall not be stacked. Exception: For the purpose of dispensing, such drums may be stored on their sides, not over two tiers high, if dispensing spigots are installed on the drums and the drums are secured in place. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1170, 1959.)

11.22.590 Storage--Materials toxic when in combination.

Substances which are not toxic by themselves in their normal state, but when in combination may create products which are toxic, shall be separated from each other in storage. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1168, 1959.)

11.22.600 Storage--Toxic substances.

Toxic substances shall be stored in an organized and orderly manner, and identified as may be necessary to aid in preventing accidents, and shall be reasonably protected from sources of external corrosion or damage. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1172, 1959.)

Part 6 HEALTH HAZARD CONTROL

11.22.610 Occupational health hazards--Restrictions generally.

No person, firm, corporation or other employer shall use or permit to be used, in the conduct of any business, manufacturing establishment or other place of employment, any process, material or condition known to have any possible adverse effect on the health of any person or persons employed therein, unless arrangements have been made to maintain the occupational environment to the extent that such injury will not result. Every industrial establishment shall be continually maintained in a sanitary condition. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1154, 1959.)

11.22.620 Control systems--Plan review and approval prerequisite to operation.

The director shall review and approve or disapprove all plans and specifications pertaining to the design of ventilation systems for the control of occupational health hazards and shielding for a source of radiation, and shall have the authority to require the submission of such plans and specifications. The employer shall submit all plans and specifications at the request of the director, and shall not use, operate or allow any person to work with any hazardous materials or sources of radiation until the director has approved said installation. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1191, 1959.)

11.22.630 Exposure to hazards--Maximum acceptable concentration--Exhaust system required when.

No employee shall be exposed to concentrations of dust, fumes, mists, vapors or gases in excess of the maximum acceptable concentrations set forth in the Rules and Regulations established by this Division and set out at Part 3 of Appendix 1 of this Title 11. When excess concentrations of dust, fumes, mists, vapors or gases are present, a local exhaust ventilation system meeting the requirements of the Rules and Regulations shall be provided. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1159, 1959.)

11.22.640 Exposure to hazards--Other control procedures authorized when.

The director may authorize substitute procedures or controls in lieu of the specific design or installation requirements established by the Rules and Regulations when he finds the conditions of such variance will protect protection equivalent to that required therein. Such variance shall not be effective until the specific conditions thereof are approved, in writing, by the director. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1160, 1959.)

11.22.650 Hazards--Information provided by director.

The director shall make available information concerning maximum acceptable concentrations of toxic vapors, gases, fumes, mists, dusts and such environmental standards as may pertain to the health and safety of the employees of industrial establishments in its area of jurisdiction. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1155, 1959.)

11.22.660 Review and updating of regulations.

It shall be the policy of the department of public health to continuously review new data concerning toxic substances and to keep this Division 1 and the Rules and Regulations established by this Division 1 up to date. (Ord. 2006-0040 § 96, 2006: Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1156, 1959.)

11.22.670 Toxic substances--Determination by director.

Whenever in the judgment of the director such action will promote the objective of this Division 1 by avoiding or resolving uncertainty as to their application, the director may declare any specifically named material, compound, substance or mixture thereof to be a “toxic substance” subject to requirements established by this Division 1 and interpreted by the Rules and Regulations which he determines to fall within the scope of the definition of the “toxic substance.” (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1157, 1959.)

11.22.680 Survey of establishments to locate health hazards.

The director shall make health and sanitary surveys and studies of industrial establishments to determine whether or not manufacturing processes or procedures may cause adverse conditions which may be responsible for or cause ill health of industrial workers. The result of such survey or study shall be brought to the attention of each establishment involved, together with any recommendations which may be deemed necessary for the adequate protection of the health and well-being of the workers. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1158, 1959.)

11.22.690 Toxic substances--Ventilation requirements--Respirator use limitations.

Whenever necessary to control fumes, dust, mists, gases or vapors to comply with Section 11.22.670, a reliable, adequate ventilating system shall be installed and maintained so that the concentration of such substances is below the maximum acceptable concentration, or the process shall be so located, isolated and arranged that persons are not exposed to such quantities as constitute a toxic substance. Respirators may be provided and used in lieu of reducing the concentration of dust, fumes, mists, gases or vapors only when the use of such respirators is of a temporary or intermittent nature and only when such respirators are approved for protection against the particular toxic substance. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1162, 1959.)

11.22.700 Personal protective equipment--Wearing required when.

Where the removal of harmful dusts, fumes, mists, vapors or gases at their source is impracticable, the employee who may be liable to harmful exposure shall be protected by means of respiratory or other protective equipment approved by the director. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1149, 1959.)

11.22.710 Respiratory protective equipment--Approval required.

Respiratory protective equipment, including filter, cartridge and supplied-air respirators, hose masks, canister-type gas masks, supplied-air hoods and helmets, and self-contained oxygen breathing apparatus, shall be of a type approved by the director. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1150, 1959.)

11.22.720 Respiratory protective equipment--Regarded as emergency protection.

The use of respiratory equipment shall, in general, be regarded as emergency protection against occasional relatively brief exposure. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1151, 1959.)

11.22.730 Personal protective equipment--Provided and replaced by employer.

It shall be the duty of the employer to provide and replace, when necessary, such respiratory and other personal protective equipment as may be required, and to maintain same in efficient and sanitary condition. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1152, 1959.)

11.22.740 Respiratory protective equipment--Sanitation and storage.

The employer shall provide the means for cleaning and sanitizing all respiratory equipment, and it shall be the duty of the employer to cause such equipment to be maintained in a clean and sanitary condition. Respiratory equipment shall not be passed on from one man to another until such equipment is cleaned and sanitized. When filter or cartridge-type respirators are used, each employee shall have such respirator for his own exclusive use. Respiratory equipment and replacement units shall be stored, when not in use, in approved containers. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1153, 1959.)

Part 7 LOCAL EXHAUST VENTILATION SYSTEMS

11.22.750 Rules and Regulations applicable.

A. Local exhaust ventilation systems required to control air contaminants shall be designed, installed, maintained and operated to meet the minimum requirements in the tables in Part VII of the Rules and Regulations set forth in Part 3 of Appendix 1 of this Title 11, unless specified otherwise elsewhere, or unless otherwise approved in writing by the director.
B. Such systems shall be designated so contaminants are not brought to the workers’ breathing zones on their way to the exhaust hood.
C. Rooms of areas in which such systems are installed shall be provided with properly located air inlets to provide as much make-up air as is exhausted.
D. Air from local exhaust ventilation systems shall not be recirculated if the contamination is a toxic substance. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1173, 1959.)

11.22.760 Design, operation and maintenance.

All ventilation systems required by this Division 1 shall be provided in accordance with design requirements set forth in this Division 1 relative to the contaminant or hazard involved, and shall be operated and maintained to produce the required health protection; and such general ventilation shall be provided as may be necessary to ventilate all portions of all places of employment. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1174, 1959.)

Part 8 SURFACE COATING PROCESS VENTILATION SYSTEMS

11.22.770 Conventional air spraying--Specifications generally.

A. For spray booths at which the operator remains outside the booth, the minimum face velocity shall be 150 fpm and the minimum air flow into the booth shall be at a rate of 150 cfm per square foot of open booth face.
B. For booths where the operator and work are located within the booth, the minimum face velocity shall be 100 fpm and the minimum flow rate 100 cfm per square foot of open booth face.
C. Where spraying is done over a downdraft ventilation system, the minimum control velocity shall be 100 fpm.
D. The size of the grill shall be larger than the object being sprayed, and the entire object being sprayed shall rest over the grill area.
E. Workers engaged in spraying out of doors shall be provided with and required to wear approved respiratory protective devices. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1175, 1959.)

11.22.780 Spray booth design.

Spray booths shall be of a size and design to adequately protect workers within and outside thereof against unnecessary exposure to such material, and all items being sprayed shall be placed far enough within and otherwise be so located in the booth to effectively remove vapor and overspray. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1181, 1959.)

11.22.790 Exhaust systems.

A. The fan shall have sufficient capacity to exhaust the necessary volume of air to meet requirements of this Division 1 against a static pressure equivalent to all resistances to be overcome in operating the unit.
B. The ducts shall be designed for a velocity of not less than 1,500 fpm and not more than 2,200 fpm, except for metalizing booths, where the velocity shall not be less than 3,000 fpm.
C. The discharge from the ventilation system shall extend to at least two feet above the roof level and be so directed as to not cause vapors or fumes to enter the work area.
D. Baffles or filters shall be installed in the booth as may be necessary to provide proper and effective air distribution.
E. Provision shall be made for admitting a supply of air to a room in which an exhaust system is located that is equal or slightly greater than that amount being exhausted. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1182, 1959.)

11.22.800 Electrostatic spraying.

A. For air-atomized electrostatic spray booths, the minimum face velocity shall be 100 fpm and the volume of air exhausted shall be 100 cfm per square foot of face opening or of grill area in the case of a downdraft exhaust system.
B. The minimum inlet ventilation-air velocity for airless atomized electrostatic spray booths shall be 75 fpm, and the volume of such air shall be 75 cfm per square foot of face opening or of grill area for a downdraft exhaust system.
C. Use of portable electrostatic spray guns in a building shall be only in a booth or area provided with local exhaust ventilation providing a minimum capture velocity of 75 fpm at the point of use. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1176, 1959.)

11.22.810 Airless spraying.

A. Spray booths in which airless spray units are used shall have a minimum face velocity of 100 fpm and a minimum flow rate of 100 cfm per square foot of open booth face.
B. Use of portable electrostatic spray guns in a building shall be only in a booth area provided with local exhaust ventilation providing a minimum capture velocity of 100 fpm at the point where such spray unit is used. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1177, 1959.)

11.22.820 Metal spraying--Additional protective equipment required when.

A. Spraying with highly toxic metals such as lead, beryllium, low-tin babbit and cadmium shall be done only within a suitable spray booth. Both the material being sprayed and the workers doing the spraying shall be positioned within the booth to minimize worker exposure to such materials. Metals with a toxicity comparable to zinc, bronze or copper may be sprayed in a suitable spray booth or hood. Nontoxic materials need not be sprayed in a booth or under a hood except as to maintain reasonably proper working condition.
B. Spray booths and hoods used for metal spraying shall have a minimum face velocity of 200 fpm and a minimum flow rate of 200 cfm per square foot of open booth face.
C. Workers involved in spraying either highly toxic materials or toxic materials for such periods as may produce a health hazard shall be supplied with and required to wear Bureau of Mines-approved supplied-air respirators, and required to wear adequate protective clothing and gloves. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1179, 1959.)

11.22.830 Flow coating.

Flow coating operations shall he done within an enclosure, with a minimum face velocity of 100 fpm and a minimum flow rate of 100 cfm per square foot of open face. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1178, 1959.)

11.22.840 Dip tanks.

A. All dip tanks, or the room in which the tank is located, shall be equipped with a mechanical exhaust ventilation.
B. Dip tanks which are equipped with local exhaust ventilation shall exhaust air at the rate of 100 cfm per square foot of tank area.
C. Where general ventilation is used, there shall be a minimum of 12 air changes per hour, ventilating all occupied areas of the room.
D. Where paint-dipped parts are air dried and local exhaust ventilation is not provided, general ventilation shall be provided and the minimum quantity of air exhausted shall be as required by recognized national standards, as stated in the Rules and Regulations. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1180, 1959.)

Part 9 VAPOR DEGREASERS USING CHLORINATED SOLVENTS

11.22.850 Location.

A. Degreasing tanks with an open surface area in excess of 600 square inches shall be located in a room with a volume of at least 8,000 cubic feet, or the room or degreasing tank shall be provided with mechanical exhaust ventilation.
B. Tanks shall be located so that drafts from nearby doors, spray booths, other ventilated equipment, windows and moving equipment will not disturb the solvent vapors. Where there are extreme drafts across the degreaser, the tank shall be baffled in a manner which will eliminate such cross-drafts.
C. The tank shall be located at least 25 feet from an open flame, electric arcs or red-hot metals. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1183, 1959.)

11.22.860 Design.

A. Work baskets, racks and the method of handling materials shall be such as to minimize dragout of liquid or vapor solvent. Racks or slings shall not be constructed of porous materials, such as wood or rope.
B. Vertical speed of hoist movement shall not exceed 11 feet per minute.
C. The freeboard shall be at least one-half the tank width. All tanks which are used only intermittently or occasionally shall be provided with a sliding or rolling cover.
D. Both boiling solvent and vapor zones shall be thermostatically controlled, with manual reset for the heat supply.
E. Where low-flashpoint contaminants are being removed by vapor degreasing, the thermostat shall be set with due regard to the flashpoint characteristics of the contaminant-solvent mixture.
F. The thermostat in the freeboard area shall be set at a maximum of 165 degrees Fahrenheit for trichloroethylene and 230 degrees Fahrenheit for perchloroethylene.
G. Degreasers shall be equipped with an adequate condenser system to control the vapor level.
H. The condenser system shall be regulated so as to provide an outlet water temperature of not less than 100 degrees Fahrenheit or more than 130 degrees Fahrenheit.
I. A water separator shall be installed in machines having an open surface area greater than 300 square inches.
J. Gas-heated combustion chambers shall be vented to the outside atmosphere.
K. A back-draft diverter shall be installed on the vent pipe to insure a positive draft.
L. There shall be a sump drain at the lowest point of the tank for solvent and sludge removal.
M. Where equipment is of sufficient size to require entrance of personnel for cleaning, a side cleanout door shall be provided for the purpose of scraping out sludge. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1184, 1959.)

11.22.870 Operation.

A. Clear, concise, step-by-step instructions for proper operation of the degreaser shall be placed in a conspicuous location on or near the degreaser.
B. All degreaser operators shall be taught to operate equipment according to proper operating instructions.
C. Only the solvent for which the unit is designed shall be used.
D. Solvent must have an inhibitor to prevent decomposition due to high temperature, light, or catalytic agents.
E. The level of the boiling solvent shall never be allowed to drop below the top of the heating surfaces.
F. Work shall be held in the vapor zone until it has reached the vapor temperature as evidenced by the stopping of condensation.
G. The spray nozzle shall be kept well below the vapor level zone at all times during use of spray.
H. Covers shall be closed when a degreaser is not in use, whether the machine is cold or in a standby condition. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1185, 1959.)

11.22.880 Welding prohibited where.

Welding shall not be attempted on or near any part of a degreaser until all solvent liquid has been removed and the machine thoroughly ventilated. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1188, 1959.)

11.22.890 Ventilation.

A. Local exhaust ventilation shall be provided on tanks which are wider than 3.5 feet and on any other tank where the design, method of operation or location results in workers being exposed to more than the threshold limit value.
B. Where exhaust ventilation is used, a slot-type exhaust shall be installed. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1189, 1959.)

11.22.900 Local mechanical exhaust required when.

Where general exhaust ventilation does not adequately remove noxious solvent vapors, local mechanical exhaust shall be provided. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1190, 1959.)

11.22.910 Tank cleaning operations.

A. When temperature of the boiling liquid reaches 195 degrees Fahrenheit for trichloroethylene and 250 degrees Fahrenheit for perchloroethylene, the employer shall clean out the degreaser.
B. Tank cleaning operations shall be done during periods when a minimum number of employees are in the area.
C. Tanks should not be entered unless absolutely necessary. If entry is necessary, the following steps shall be taken:
1. Remove all solvent from the tank;
2. Remove all sludge after it has cooled to below 180 degrees Fahrenheit;
3. Aerate the tank to remove residual solvent. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1186, 1959.)

11.22.920 Pit maintenance.

A. The pit shall be aerated for a long enough period to insure safe conditions before entering.
B. Positive ventilation shall be provided while the man is in the pit. (Ord. 8588 § 9 (part), 1964: Ord. 7583 Part 3 Ch. 16 § 1187, 1959.)

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