| 5106 | Peracetic Acid Potency Test Strips | 6 bottles of 100 test strips / Kit |
Serim Peracetic Acid Test Strips indicate the "potency" or concentration of peracetic acid present in peracetic acid/hydrogen peroxide-based disinfectants used to disinfect dialyzers. Dialyzers are generally filled with peracetic acid solutions with a working concentration of 1000-ppm to 1500-ppm.1
Inadequate disinfection can result if improper concentration of disinfectant is used. The presence of germicide must be ensured through procedural controls, ideally verified in every dialyzer prior to rinsing.2 Testing for the proper concentration of disinfectant ensures that the disinfectant has been properly diluted and is still present at an adequate concentration.3
Test a sample of peracetic acid/hydrogen disinfectant obtained from the port of the dialyzer.
Test each dialyzer prior to use for the presence of disinfectant. Daily verification of the concentration of
disinfectant in the batch solution is necessary as are periodic spot-checks of dialyzers.2
Serim Peracetic Acid Test Strips are supplied in ready-to-use form. When placed in contact with the sample according to the directions for use, the indicator pad changes color relative to the concentration of peracetic acid present.
References:
1. Personal communication - working concentration information available from peracetic acid manufacturers
2. Handbook of Dialysis, Third Edition, JT Daugirdas, PG Blake and TS Ing, pg 172. Lippincott, Williams and Wilkins
3. Proper Mechanisms for Assuring Disinfectant Concentrations for Use in Hemodialysis, Nephrology News & Issues, June 1999, pg 23.
4. ReNews, a Publication on Dialyzer Reprocessing, Volume 3, Number 1, Spring/Summer 1995, pg
6. Renal Systems, Division of Minntech Corporation
| 5161 | Monitor for Chlorine (100-750ppm) |
1 bottle of 100 strips |
Serim® Monitor™ for Chlorine (100-750 ppm) strips measure free chlorine. The test gives a semi-quantitative indication that diluted bleach (sodium hypochlorite) solutions have the appropriate concentration of free chlorine required for disinfecting hard, non-porous surfaces.
Commonly used household bleach at a 1:100 dilution contains between 400 and 600 ppm free available chlorine.1
Using a bleach solution in which the free chlorine concentration is too low will not thoroughly disinfect surfaces. However, using an unnecessarily high concentration of chlorine may leave an unhealthy residue or cause metals to corrode. The goal is to develop cleaning/disinfecting methods that effectively rid surfaces of soil and micro- organisms without overusing chlorine.
"Hypochlorite solutions in tap water at a pH>8 stored at room temperature (23°C) in closed, opaque plastic containers may lose up to 40-50% of their free available chlorine level over a period of one month."2
"Fresh solutions of diluted household bleach made up daily (every 24 hours) are considered appropriate for disinfection of environmental surfaces and for decontamination of sites following initial cleanup (i.e., wiping up) of spills of blood or other potentially infectious materials. Contact time for bleach is generally considered to be the time it takes the product to air dry. Solutions of bleach should not be stored in glass containers, but in material such as the plastic in which the bleach, the consumer product, is packaged in."3
Serim Monitor strips allow testing at various point-of-use locations where diluted bleach is used as a hard surface disinfectant. Review applicable regulations and manufacturer's recommendation to determine appropriate testing requirements.
Serim Monitor strips are supplied in ready-to-use, dip and read form. When placed in contact with the sample according to the directions for use (see below), the indicator pad changes color relative to the concentration of free chlorine. Color blocks are present a 100, 200, 350, 500 and 750 ppm. Note: Test strip cannot distinguish free hlorine concentrations above 800 ppm.
References
1. Uses of Inorganic Hypochlorite (Bleach) in Healthcare Facilities, Rutala WA, Weber DJ, Clinical Microbiology Reviews, Oct 1997, 597-610, Vol 10, No. 4.
2.
Disinfection and Sterilization In Healthcare Facilities, William A. Rutala, Ph.D., M.P.H., David J. Weber, M.D., M.P.H., Hospital Epidemiology, University of North Carolina Health Care S
of Medicine, Chapel Hill, NC 27599-7030
Recommendations for Daily Preparation of Diluted Sodium Hypochlorite Bleach Desinfectant Solutions, OSHA Directive OSHA Directive Number: CPL 02-02-069 (formerly PCL 2-2.69); hhtp://www.osha.gov