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[An evaluation of the sterilizing activity of paraformaldehyde]
Revista Da Escola De Enfermagem Da U S P
|April 1, 1991
Abstract:
Sporocidal activity of paraformaldehyde tablets was assessed by means of the Association of Official Analytical Chemists technic which is required in Brazil to register this class of sanitizing substances by the Health Ministery. According to this methodology paraformaldehyde showed sterilizing activity at the 3% (3.0 g/cm3) concentration in 3 hour exposure period at 50 degrees C in the presence of relative humidity.
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As used in a healthcare facility, sterilization destroys all microorganisms through physical or chemical methods. The physical method includes steam, dry heat, boiling water, and radiation.
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In healthcare, the chemical method of sterilization uses chemical sterilants to treat surgical instruments and medical supplies to help prevent the transmission of infectious pathogens to patients. Due to heat sensitivity, most medical supplies and equipment should not be exposed to high temperatures. These parts include rubber, plastic, glass, and other similar elements.
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