Other Considerations
In addition to permeation, degradation, penetration, and heat transfer, several other factors must be considered during clothing selection.
DuPont™ Tychem® 4000 S
These affect not only chemical resistance but also the worker's ability to perform the required task. The following summarizes these considerations.
Durability
- Does the material have sufficient strength to withstand the physical stress of the task(s) at hand?
- Will the material resist tears, punctures, and abrasions?
- Will the material withstand repeated use after contamination/decontamination?
Flexibility
- Will the CPC interfere with the workers' ability to perform their assigned tasks (this is particularly important to consider for gloves)?
Temperature Effects
- Will the material maintain its protective integrity and flexibility under hot and cold extremes?
Ease of Decontamination
- Are decontamination procedures available on site?
- Will the material pose any decontamination problems?
- Should disposable clothing be used?
Compatibility With Other Equipment
- Does the clothing preclude the use of another, necessary piece of protective equipment (e.g., suits that preclude hardhat use in hardhat area)?
Duration of Use
- Can the required task be accomplished before contaminant breakthrough occurs, or degradation of the CPC becomes significant?
Special Conditions
Fire, explosion, heat, and radiation are considered special conditions which require special, protective equipment. Unique problems are associated with radiation, and it is beyond the scope of this course to discuss them properly. A qualified health physicist should be consulted if a radiation hazard exists.
Knowledge Check Choose the best answer for the question.
3-4. When evaluating chemical-protective clothing (CPC), _____ is considered a special condition, requiring specialized equipment.
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