Cartridge-type respirators

Benzonitrile Rubber gloves, chemical resistant splash-proof goggles, rubber boots, chemical protective clothing, chemical cartridge type respirator or other protection against vapor must be worn when working in poorly ventilated areas or where overexposure by inhalation could occur. Move to fresh air and call physician. Wash well with soap and water without scrubbing. Flush with water for at least 15 minutes. 

The type of respiratory protection required is dependent upon the concentration of the vapor to be expected in the workplace, which in turn can be determined by measurement of the vapor concentration. If the concentrations are no more than 2% by volume, the canister type of gas mask will offer adequate control for short periods. With most halogenated hydrocarbons, breakthrough of the canister is noted by the detection of the odor of the halogenated material. However, odor alone is not a totally reliable indicator of canister exhaustion. The cartridge type respirator is less effective because it has a smaller canister, and, therefore, contains less absorbent material. These cartridge types are usually useful only up to vapor concentrations of 1000 ppm. The self-contained... 

Ensure inspection of cartridge-type respirators on a monthly basis and self-contained breathing apparatus (SCBA) and airline hose mask systems on a weekly and monthly basis. Ensure that records of respirator inspections are maintained. Ensure that employees are fit tested and receive initial and annual spirometric evaluation prior to using a respirator. 

Workcenter supervisors select respirators. Selection is based on matching the proper color-coded cartridge with the type of protection desired. Selection is also dependent upon the quality of fit and the nature of the work being done. Cartridge type respirators are issued to the individuals who are required to use them. Each individually assigned respirator is identified in a way that does not interfere with its performance. Questions about the selection process are to be referred to the Safety Division. 

Workcenter supervisors shall ensure that all cartridge-type respirators are inspected once per month and make appropriate entries in a "Supervisor s Monthly Respirator Inspection Checklist." The work center supervisor or designated person shall inspect all SCBA and airline respirators weekly and monthly, and make appropriate entries in a "SCBA/Airline... 

Positive Pressure Check Procedure (cartridge-type respirator) After the respirator has been put in place and straps adjusted for firm but comfortable tension, the exhalation valve is blocked by the wearer s palm. The wearer takes a deep breath, gently exhales a little air, and holds his or her breath for ten (10) seconds. If the mask fits properly, it will feel as if it wants to pop away from the face, but no leakage will occur. 

Only an authorized person should attempt to stop a leak. If there is any question as to the seriousness of the leak a cartridge-type respirator must be worn. All persons not equipped with such a respirator must leave the affected area until the leak is stopped. 

When entering low or confined areas where a high concentration of carbon dioxide gas may be present, use a self-contained breathing apparatus (SCBA) or supplied-air respirator. Do not use a cartridge-type respirator. 

Cartridge-type respirators with or without facepiece (or full facepiece respirators with chemical cartridge) offer adequate temporary protection provided the oxygen content in the air is greater than 19.5 percent and the chlorine concentration does not exceed the rated capability of the respirator. The NIOSH rating for maximum chlorine concentration for each type of respirator should be noted and followed. The need to protect the eyes from chlorine should be part of the evaluation of appropriate respiratory equipment. A supplied-air SCBA with full face-piece is required for performing tasks when chlorine may be present unless air sampling verifies the chlorine concentration is such that a lower level of respiratory protection provides protection. 

Cartridge-type respirators with Universal canisters should be available for immediate use for emergencies. These canisters are satisfactory only for short exposures (about 5 minutes for a 2 percent concentration of nitrogen dioxide, 20 minutes for a concentration of 0.5 percent) and should be changed on an exact time schedule and after each use. 

For respiratory protection, SCBA, air-line cartridge-type respirators, and U.S. Bureau of Mines or NIOSH approved canister-type, cartridge-type respirators should be available in emergencies. Instant-acting safety showers and eyewash fountains should be conveniently located near the site of the operation. 

Respiratory protection. A disposable paper-type mask is inadequate for most exposures. A screw-in cartridge-type mask for which the cartridges are rarely changed is also unlikely to be effective. For an air-supplied respirator with an air supply hose, ascertain the location of the air intake. 

Cartridge-type and SCBA respirator facepieces are washed in a detergent solution, rinsed in clean potable water, and allowed to dry in a clean area. A clean brush is used to scrub the respirator to remove adhering dirt. 

A. The Initial and Armual fit tests are rigorous procedures used to determine whether the employee can safely wear a respirator. The Initial and Annual fit tests are conducted by the Safety Division. Both tests utilize cartridge-type and SCBA respirators... 

Powered air-purifying respirator (PAPR) A type of air-purifying respirator that utilizes a battery-powered fan to draw contaminated air through the cartridge or filter into the facepiece. 

Respirator with a clean cartridge or canister. The correct type of cartridge or canister must be used for the specific chemical being applied they differ for particular kinds or groups of toxicants. 

The effectiveness of the air purifying respirator depends on choosing the proper filter, cartridge or canister for the type of exposure present. Air purifying respirators rely on the use of activated charcoal or other chemical-specific filters, which remove gases and vapors, or filters which remove particulates such as dusts. Others utilize a combination of both. 

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