Respirators OSHA standards

Barium metal and most barium compounds are highly poisonous. A notable exception is barium sulfate which is nontoxic because of its extreme iasolubihty ia water. Barium ion acts as a muscle stimulant and can cause death through ventricular fibrillation of the heart. Therefore, care must be taken to avoid contact with open areas of the skin. Workers must wear respirators (of type approved for toxic airborne particles), goggles, gloves, and protective clothing at all times. The toxic barium aluminate residue obtained from barium production is detoxified by reaction with a solution of ferrous sulfate and converted iato nontoxic barium sulfate. According to OSHA standards, the TWA value for Ba and Ba compounds ia air is 0.5 mg/m. ... 

The NIOSH IDLH is defined by the NIOSH-OSHA Standard Completions Program only for the purpose of respirator selection and represents a maximum concentration from which, in the event of respiratory failure, one could escape within 30 min without experiencing any escape-impairing or irreversible health. 

EPA OAR Total dust Respirable fraction Standards of Performance for New Stationary Sources 15 mg/m3 5 mg/m3 OSHA 1974... 

Where the use of respiratory protection is indicated, then the OSHA standard for respiratory protection in 29 CFR 1910.134(c) includes the statements (1) In any worlq)lace where respirators are necessary to protect the health of the employee, the employer shall establish and implement a written respiratory protection program with work site specific procedures.. .. The employer shall include in the program the following provisions...(ii) Medical evaluations of employees required to use respirators and in 29CFR 1910.134(e) is the following ... 

In addition to the following OSHA standard for general respirator protection usage, individuals working undercircumstances where they could be exposed to tuberculosis,there is a specific respiratory protection standard applicable to them, 29 CFR 1910.139. TheNRC also... 

Respirators are an effective method ofprotection against designated hazards when properly selected and worn. Respiratoruse is encouraged,even when exposures are below the exposure limit, to provide an additional level of comfort and protection forworkers,However, if a respirator is used improperly or not kept clean, the respirator itself can become a hazard to the worker. Sometimes, workers may wear respirators to avoid exposures to hazards, even if the amount of hazardous substance does not exceed the limits set by OSHA standards. If your employer provides respirators for your voluntary use, or if you provide your own respirator, you need to take certain precautions to be sure that the respirator itself does not present a hazard. 

Per Occupational Safety and Health Administration (OSHA) regulation 29 CFR 1910.1450, Occupational Exposures to Hazardous Chemicals in Laboratories, is a written plan that includes specific work practices, standard operating procedures, equipment, engineering controls, and policies to ensure that employees are protected from hazardous exposure levels to all potentially hazardous chemicals in use in their work areas. The OSHA standard provides for training, employee access to information, medical consultations, examinations, hazard identification procedures, respirator use, and record-keeping practices. 

Cover the types of respirators and protective clothing required. The employer is required to select and provide employees with the appropriate respirators specified in the 1926.103 (1910.134) OSHA standard. 

Not only do our products provide respiratory protection required for the job, enhanced comfort and performance provide the ability to withstand the duration of the job. Miller s Powered Air Purifying Respirator (PAPR) can help your organization meet OSHA standards for welding fume particulate. 

The standard requires that an employer initially provide the basic advisory information in Appendix D to employees who voluntarily use respirators that are not required by OSHA standards or the employer. Appendix D may be used, or alternatively, the employer may develop material that is equivalent in content to this appendix. This information may be transmitted either in written form or verbally. This information is not required to be provided other than initially. 

Air purifying respirators must not be worn in atmospheres unknown and/or IDLH, atmospheres in oxygen deficient atmospheres, or in situations where the employer cannot prevent the canister or cartridge from becoming saturated. They also cannot be worn if prohibited by the respirator requirements for substance specific standards (e.g., methylene chloride) or other OSHA standards (e.g., abrasive blasting per 29 CFR 1910.94, Ventilation). Also, respirator manufacturers have lists of contaminants for which air purifying respirators are not recommended. 

As discussed in earlier, the materials in question must be examined for toxicity, levels of contamination and respirable nature. Sampling must be conducted to determine whether overexposure exists. Overexposure can be defined as exposed to air contaminants at a level greater than that specified by legal OSHA standards. 

The NIOSH-OSHA Standards Completion Program — Respirator Decision Logic provides guidance of the limitations of the equipment and OSHA compliance. In selecting the proper respiratory protection device, the physiology of the wearer, the toxicity of the hazards encountered by leakage or misuse and the hazard of sampling all must be considered carefully. 

When respirators are used to limit employee exposure as required under OSHA Standard 1926.62 paragraph (c) of this section and all the requirements of paragraphs (e)(1) and (f) of this section have been met, employee exposure may be considered to be at the level provided by the protection factor of the respirator for those periods the respirator is worn. Figure 4.1 shows a worker in protective clothing and wearing a... 

The concentration of respirable dust or fumes in the breathing zone of any worker shall be kept below the levels specihed in Sec. 1910.94 of the OSHA standard. 

---