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Reducing disinfectant wastage.

S B Kaye1, R Graham, K McCarthy

  • 1St Paul's Eye Hospital, Liverpool.

Eye (London, England)
|January 1, 1991
PubMed
Summary
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Sodium dichloroisocyanurate solutions remain stable for three weeks at 20°C, reducing wastage and costs in ophthalmology departments. This allows for weekly preparation, saving £1200-£1400 annually.

Area of Science:

  • Ophthalmology
  • Environmental Health
  • Chemical Stability

Background:

  • Reducing departmental costs and minimizing waste are crucial in healthcare settings.
  • Effective disinfection protocols are essential in ophthalmological outpatient departments.
  • Sodium dichloroisocyanurate is a common disinfectant, but its stability impacts preparation frequency and cost.

Purpose of the Study:

  • To investigate the stability of available chlorine in sodium dichloroisocyanurate solutions.
  • To determine if solutions can be prepared less frequently to reduce costs.
  • To assess the economic impact of extending the preparation interval for sodium dichloroisocyanurate.

Main Methods:

  • Prepared litre solutions of sodium dichloroisocyanurate at 280 ppm and 560 ppm.

Related Experiment Videos

  • Stored solutions at 20°C for a three-week period.
  • Monitored the stability and decay of available chlorine over the investigation period.

    • Main Results:

    • No significant decay in available chlorine levels was observed at 20°C for both 280 ppm and 560 ppm concentrations.
    • Sodium dichloroisocyanurate solutions demonstrated stability over the three-week study.
    • This stability supports less frequent preparation of disinfectant solutions.

    Conclusions:

    • Sodium dichloroisocyanurate solutions are stable for at least three weeks at 20°C.
    • Weekly preparation of these solutions is feasible, reducing wastage and associated costs.
    • Implementing weekly preparation can lead to annual savings of £1200-£1400 in an ophthalmological outpatient department.