| New query |
| (1) This section applies to all occupational exposures to 1,3-Butadiene (BD), Chemical Abstracts Service Registry No. 106-99-0, except as provided in subsection (a)(2). |
| (2) Exemptions. |
| (1) General. |
| (A) Determinations of employee exposure shall be made from breathing zone air samples that are representative of the 8-hour TWA and 15-minute short-term exposures of each employee. |
| (2) Initial monitoring. |
| (3) Periodic monitoring and its frequency. |
| (4) Termination of monitoring. |
| (5) Additional monitoring. |
| (7) Employee notification of monitoring results. |
| (8) Observation of monitoring. - |
| (2) Access to regulated areas shall be limited to authorized persons. |
| (3) Regulated areas shall be demarcated from the rest of the workplace in any manner that minimizes the number of employees exposed to BD within the regulated area. |
| (1) Engineering controls and work practices. |
| (2) Compliance plan. |
| (B) The written compliance plan shall include a schedule for the development and implementation of the engineering controls and work practice controls including periodic leak detection surveys. |
| (D) The employer shall not implement a schedule of employee rotation as a means of compliance with the PELs. |
| (2) Written plans for the exposure goal program shall be furnished upon request for examination and copying to the Chief, NIOSH, affected employees and designated employee representatives. |
| (3) Such plans shall be updated as necessary to reflect significant changes in the status of the exposure goal program. |
| (4) Respirator use is not required in the exposure goal program. |
| (A) A leak prevention, detection, and repair program. |
| (B) A program for maintaining the effectiveness of local exhaust ventilation systems. |
| (C) The use of pump exposure control technology such as, but not limited to, mechanical double-sealed or seal-less pumps. |
| (D) Gauging devices designed to limit employee exposure, such as magnetic gauges on rail cars. |
| (E) Unloading devices designed to limit employee exposure, such as a vapor return system. |
| (F) A program to maintain BD concentration below the action level in control rooms by use of engineering controls. |
| (A) Periods necessary to install or implement feasible engineering and work practice controls; |
| (B) Non-routine work operations which are performed infrequently and in which exposures are limited in duration. |
| (C) Work operations for which feasible engineering controls and work practice controls are not yet sufficient to reduce exposures to or below the PELs; |
| (D) Emergencies. |
| (2) Respirator Program. |
| (A) The employer shall institute a respirator program in accordance with section 5144(b) (except (d)(1)(C), (d)(1)(C)2.a., and b.) through (m). |
| (C) In lieu of the replacement intervals listed in Table 1, the employer may replace cartridges or canisters at 90% of the expiration of service life, provided the employer: |
| 1. Demonstrates that employees will be adequately protected by this procedure. |
| (D) A label shall be attached to the filter element(s) to indicate the date and time it is first installed on the respirator. |
| (F) Regardless of the air purifying element used, if an employee detects the odor of BD, the employer shall replace the air-purifying element(s) immediately. |
| (3) Respirator selection. |
| (A) The employer must select appropriate respirators from Table I. |
____________________________
Concentration of airborne BD Minimum required respirator
(ppm) or condition of use
____________________________
Less than or equal to 5 ppm (a) Air-purifying half mask or full facepiece
(5 times PEL). respirator equipped with approved BD or
organic vapor cartridges or canisters.
Cartridges or canisters shall be replaced every
4 hours.
Less than or equal to 10 ppm (a) Air-purifying half mask or full facepiece
(10 times PEL). respirator equipped with approved BD or
organic vapor cartridges or canisters.
Cartridges or canisters shall be replaced every
3 hours.
____________________________
Concentration of airborne BD Minimum required respirator
(ppm) or condition of use
____________________________
Less than or equal to 25 ppm (a) Air-purifying full facepiece respirator
(25 times PEL). equipped with approved BD or organic vapor
cartridges or canisters.
Cartridges or canisters
shall be replaced every 2 hours.
(b) Any powered air-purifying respirator
equipped with approved BD or organic vapor
cartridges. PAPR cartridges shall be replaced
every 2 hours.
(c) Continuous flow supplied air respirator
equipped with a hood or helmet.
Less than or equal to 50 ppm (a) Air-purifying full facepiece respirator
(50 times PEL). equipped with approved BD or organic vapor
cartridges or canisters.
Cartridges or canisters
shall be replaced every (1) hour.
(b) Powered air-purifying respirator
equipped with a tight-fitting facepiece
and an approved BD or organic vapor
cartridges. PAPR cartridges shall be replaced
every (1) hour.
____________________________
Concentration of airborne BD Minimum required respirator
(ppm) or condition of use
____________________________
Less than or equal to 1,000 (a) Supplied air respirator equipped with a
ppm (1,000 times PEL). half mask of full facepiece and operated in
a pressure demand or other positive pressure
mode.
Greater than 1000 ppm (a) Self-contained breathing unknown
concentration, or apparatus equipped with a
firefighting full facepiece and operated in a
pressure demand or other positive pressure
mode.
(b) Any supplied air respirator equipped with
a full facepiece and operated in a pressure
demand or other positive pressure mode in
combination with an auxiliary self-contained
breathing apparatus operated in a pressure
demand or other positive pressure mode.
Escape from IDLH (a) Any positive pressure self-contained
conditions. breathing apparatus with an appropriate
service life.
(b) A air-purifying full facepiece respirator
equipped with a front or back mounted BD or
organic vapor canister.
____________________________
| Notes: Respirators approved for use in higher concentrations are permitted to be used in lower concentrations. Full facepiece is required when eye irritation is anticipated. |
| (B) Air purifying respirators must have filter element(s) approved by NIOSH for organic vapors or BD. |
| (1) Employees covered. The employer shall institute a medical screening and surveillance program as specified in this subsection for: |
| 1. At or above the PELs on 30 or more days a year for 10 or more years; |
| 2. At or above the action level on 60 or more days a year for 10 or more years; or |
| 3. Above 10 ppm on 30 or more days in any past year; and |
| (C) Each employee exposed to BD following an emergency situation. |
| (2) Program administration. |
| (B) Physical examinations, health questionnaires, and medical procedures shall be performed or administered by a physician or other licensed health care professional. |
| (C) Laboratory tests shall be conducted by an accredited laboratory. |
| (3) Frequency of medical screening activities. The employer shall make medical screening available on the following schedule: |
| 2. Before assumption of duties by the employee in a job with BD exposure; |
| 3. Every 3 years after the initial physical examination; |
| 4. At the discretion of the physician or other licensed health care professional reviewing the annual health questionnaire and CBC; |
| 6. At termination of employment if twelve months or more have elapsed since the last physical examination. |
| (B) Following an emergency situation, medical screening shall be conducted as quickly as possible, but not later than 48 hours after the exposure. |
| (C) For each employee who must wear a respirator, physical ability to perform the work and use the respirator must be determined as required by section 5144. |
| (4) Content of medical screening. |
| (A) Medical screening for employees covered by subsections (j)(1) (A)-(B) shall include: |
| 2. A complete physical examination, with special emphasis on the liver, spleen, lymph nodes, and skin; |
| 3. A CBC; and |
| 4. Any other test which the examining physician or other licensed health care professional deems necessary to evaluate whether the employee may be at increased risk from exposure to BD. |
| (5) Additional medical evaluations and referrals. |
| (B) The specialist to whom the employee is referred under this subsection shall determine the appropriate content for the medical evaluation, e.g., examinations, diagnostic tests and procedures, etc. |
| (A) A copy of this section including its appendices; |
| (B) A description of the affected employee's duties as they relate to the employee's BD exposure; |
| (C) The employee's actual or representative BD exposure level during employment tenure, including exposure incurred in an emergency situation; |
| (D) A description of pertinent personal protective equipment used or to be used; and |
| (7) The written medical opinion. |
| 1. The occupationally pertinent results of the medical evaluation; |
| 2. A medical opinion concerning whether the employee has any detected medical conditions which would place the employee's health at increased risk of material impairment from exposure to BD; |
| 3. Any recommended limitations upon the employee's exposure to BD; and |
| 4. A statement that the employee has been informed of the results of the medical evaluation and any medical conditions resulting from BD exposure that require further explanation or treatment. |
| (8) Medical surveillance. |
| (1) Hazard communication. The employer shall communicate the hazards associated with BD exposure in accordance with the requirements of section 5194, Hazard Communication. |
| (2) Employee information and training. |
| (A) The employer shall provide all employees exposed to BD with information and training in accordance with the requirements of section 5194, Hazard Communication. |
| (C) Training shall be provided prior to or at the time of initial assignment to a job potentially involving exposure to BD at or above the action level or STEL and at least annually thereafter. |
| 1. The health hazards associated with BD exposure, and the purpose and a description of the medical screening and surveillance program required by this section; |
| 2. The quantity, location, manner of use, release, and storage of BD and the specific operations that could result in exposure to BD, especially exposures above the PEL or STEL; |
| 3. The engineering controls and work practices associated with the employee's job assignment, and emergency procedures and personal protective equipment; |
| 4. The measures employees can take to protect themselves from exposure to BD. |
| 5. The contents of this standard and its appendices, and |
| 6. The right of each employee exposed to BD at or above the action level or STEL to obtain: |
| a. medical examinations as required by subsection (j) at no cost to the employee; |
| b. the employee's medical records required to be maintained by subsection (m)(4); and |
| c. all air monitoring results representing the employee's exposure to BD and required to be kept by subsection (m)(2). |
| (3) Access to information and training materials. |
| (B) The employer shall provide to the Chief or NIOSH, or the designated employee representatives, upon request, all materials relating to the employee information and the training program. |
| (1) Objective data for exemption from initial monitoring. |
| (B) This record shall include at least the following information: |
| 1. The product or activity qualifying for exemption; |
| 2. The source of the objective data; |
| 3. The testing protocol, results of testing, and analysis of the material for the release of BD; |
| 4. A description of the operation exempted and how the data support the exemption; and |
| 5. Other data relevant to the operations, materials, processing, or employee exposures covered by the exemption. |
| (C) The employer shall maintain this record for the duration of the employer's reliance upon such objective data. |
| (2) Exposure measurements. |
| (A) The employer shall establish and maintain an accurate record of all measurements taken to monitor employee exposure to BD as prescribed in subsection (d). |
| (B) The record shall include at least the following information: |
| 1. The date of measurement; |
| 2. The operation involving exposure to BD which is being monitored; |
| 3. Sampling and analytical methods used and evidence of their accuracy; |
| 4. Number, duration, and results of samples taken; |
| 5. Type of protective devices worn, if any; and |
| 6. Name, social security number and exposure of the employees whose exposures are represented. |
| 7. The written corrective action and the schedule for completion of this action required by subsection (d)(7)(B). |
| (C) The employer shall maintain this record for at least 30 years in accordance with section 3204. |
| (3) Respirator Fit-test. |
| (A) The employer shall establish a record of the fit tests administered to an employee including: |
| 1. The name of the employee, |
| 2. Type of respirator, |
| 3. Brand and size of respirator, |
| 4. Date of test, and |
| 5. Where QNFT is used, the fit factor, strip chart recording or other recording of the results of the test. |
| (B) Fit test records shall be maintained for respirator users until the next fit test is administered. |
| (4) Medical screening and surveillance. |
| (A) The employer shall establish and maintain an accurate record for each employee subject to medical screening and surveillance under this section. |
| (B) The record shall include at least the following information: |
| 1. The name and social security number of the employee; |
| 2. Physician's or other licensed health care professional's written opinions as described in subsection (k)(7); |
| 3. A copy of the information provided to the physician or other licensed health care professional as required by subsections (k)(7)(B)-(D). |
| (C) Medical screening and surveillance records shall be maintained for each employee for the duration of employment plus 30 years, in accordance with section 3204. |
| (5) Availability. |
| (A) The employer, upon written request, shall make all records required to be maintained by this section available for examination and copying to the Chief and NIOSH. |
| (B) Access to records required to be maintained by subsections (l)(1)-(3) shall be granted in accordance with section 3204(e). |
| (6) Transfer of records. |
| (B) The employer shall transfer medical and exposure records as set forth in section 3204(h). |
| (1) Effective date. This section shall become effective August 27, 1997. |
| (2) Start-up dates. |
| (A) The initial monitoring required under subsection (d)(2) shall be completed within sixty (60) days of the effective date of this standard or the introduction of BD into the workplace. |
| (1) Appendix E to this section is mandatory. |
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