Serim pH 0 – 14 Test Strips
Features	Benefits
Ready to use, simple procedure	No preparation or mixing of reagents No calculations or "drop counting" needed
Quick, semi-quantitative results	Simple, quick and reliable method
Simple to interpret color blocks	Accurate and consistent results minimize variation between readers Color of indicator pads are directly compared to color blocks on container label
Consistent color reactions	Results not affected by aging throughout the shelf life of the product
Each container is clearly labeled with: • Lot number • Expiration date	Traceability of product through manufacturing to final user Leaves no doubt as to age or integrity of the product

References:
1. Monitoring Your Dialysis Water Treatment System, Northwest Renal Network, Seattle, Washington, June, 2005; www.nwrenalnetwork.org.
2. AAMI Standards and Recommended Practices, Dialysis, 2008 Edition, RD62 - Water treatment equipment for hemodialysis applications, Association for the Advancement of Medical Instrumentation. Arlington, Virginia.

WHAT does this product do?
Serim® pH 0 -14 Test Strips give a semi-quantitative measurement of the acidity or concentration of hydrogen ion H+ present in anaqueous solution.

WHY should I use this roduct?
In dialysis, the expected range for water pH should be between 7.0 and 8.0.¹
The pH of the water affects the efficacy of carbon in removing chlorine or chloramine. Carbon filtration and reverse osmosis devices will not work as effectively at a pH of >8.5.
Though not needed in all water treatment systems, adding an acidic solution to the raw water is indicated in areas where the pH of incoming feed water is high. In these municipalities, adding an inorganic acid to lower the feed water pH may be required for the proper functioning of water treatment system. The addition of the acid must be monitored with a pH meter or pH strip that is designed for the level anticipated.¹

The AAMI Standards for Water treatment equipment odialysis applications (RD62) states that "reducing the pH of alkaline feed water by the injection of mineral acids can enhance the efficiency of granular activated carbon."²
Manufacturers or suppliers of carbon adsorption beds should provide a warning that unexpected exhaustion may occur because of variable feed water characteristics such as:
• increasing pH
• the presence of species that compete for carbon media adsorption / raction sites
• materials deposited on the surface of the carbon media

These characteristics prevent chlorine and chloramines from reaching adsorption or reaction sites on the carbon granules.

WHERE do I use this product?
To assure that the acid is fed in at the appropriate rate, pH must be monitored from a sample port just downstream from the acid feed pump. Review applicable regulations and manufacturers recommendations to determine appropriate testing requirements.

References:
1. Monitoring Your Dialysis Water Treatment System, Northwest Renal Network, Seattle, Washington, June, 2005; www.nwrenalnetwork.org.
2. AAMI Standards and Recommended Practices, Dialysis, 2008 Edition, RD62 - Water treatment equipment for hemodialysis applications, Association for the Advancement of Medical Instrumentation. Arlington, Virginia.

How to use Serim pH 0-14 Test Strips
Sample	Collect water sample in a clean container.
Test Strip Technique	Completely immerse all indicator pads into water sample for 1 second.
Results	Match the indicator pads to color blocks on the container label
Store containers of Serim pH 0-14 Test Strips at temperatures between 15°- 30°C (59°- 86°F). The lot number and expiration date are printed on the bottom of each bottle.

 

References:
1. Monitoring Your Dialysis Water Treatment System, Northwest Renal Network, Seattle, Washington, June, 2005; www.nwrenalnetwork.org. 2. AAMI Standards and Recommended Practices, Dialysis, 2008 Edition, RD62 - Water treatment equipment for hemodialysis applications, Association for the Advancement of Medical Instrumentation. Arlington, Virginia.