Residual Formaldehyde Test Kit

Package Size: 100 Strips per Bottle
Serim Residual Formaldehyde Test Strips provide a convenient means for indicating low levels of formaldehyde in aqueous samples.

A semi-quantitative estimation of the formaldehyde concentrations between 1- and 5-ppm can be made by comparing the reacted indicator pad color to the color chart on the bottle label. Color blocks represent formaldehyde concentrations of 0, Trace, 2.5 and 5-ppm.
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Price: $64.35

Serim Residual Formaldehyde Test Strips must be refrigerated until needed.

Allow the bottle of strips to come to room temperature prior to opening or use.  The lot number and expiration date are printed on the bottom of each bottle.
WHAT does this product do?
Serim Residual Formaldehyde Test Strips give a semi-quantitative indication of the concentration of formaldehyde remaining after rinsing formaldehyde disinfectant from dialyzers, dialysis delivery machines, water systems or portable reverse osmosis (RO) machines.
WHY should I use this product?
If formaldehyde is not thoroughly rinsed from the dialyzer, the patient will complain of burning and itching at the vascular access site. Chronic exposure to formaldehyde can cause the formation of anti-N erythrocyte antibodies, which has been associated with hemolysis of the red blood cells.

AAMI recommends the residual concentration of formaldehyde be reduced to below 3 ppm.
WHERE do I use this product?
Use Serim Residual Formaldehyde Test Strips to test rinse solution from any convenient port after the solution has passed through the dialyzer. Test a sample of rinse solution from the drain or from the post-dialyzer recirculating line of hemodialysis delivery system.

Follow the RO manufacturer’s instructions for collecting and testing samples from RO machines and water systems after disinfecting with formaldehyde.
When do I use this product?
For reused dialyzers, it is important to test each dialyzer immediately before use to ensure that the disinfectant was adequately rinsed.  Whenever the dialysis delivery machine, RO machine or water system is disinfected with formaldehyde, use Serim Residual Formaldehyde Test Strips to ensure complete rinse-out of the disinfectant.

Serim Residual Formaldehyde 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 formaldehyde present in the rinse solution.

Test Method

Syringe or Recirculating Line

Stream from Drain


Dispense 1 rounded drop of rinse solution onto the indicator pad using a syringe or by breaking the recirculating saline line.

Collect 1 rounded drop of rinse solution on the indicator pad by passing the strip quickly (1 second) through the rinse stream.

Test Strip


Allow the sample to remain on the indicator pad for 2 minutes, and then blot the side edge of the pad on a paper towel.

Semi-quantitative Results

Compare the color of the indicator pad to the color blocks on the bottle label

  Features                                                      Benefits
Ready-to-use strips
· No preparation or mixing of reagents
· No glass vials or sharps needed, eliminates needlestick hazard
· No syringe needed to inject sample as required by Schiff’s Reagent ampoule tests
· Extra safety and cost savings
Quick, semi-quantitative results in 2 minutes
·  Allows quick initiation of dialysis procedure
Test is sensitive to 1 ppm
· Provides an extra margin of safety
Reliably detects residual formaldehyde in water
· Meets the AAMI-recommended concentration of less than 3 ppm residual formaldehyde in rinse water from dialyzers, dialysis machines or water systems/equipment disinfected with formaldehyde
· Superior performance to traditional “off-label chlorine tests such as CliniTest® Tablets* which cannot detect formaldehyde until potentially harmful concentrations of 80 ppm or more are present5
Consistent color reactions
· Results not affected by aging throughout shelf life of the product

Each bottle clearly labeled with:

·         Lot number

·         Expiration date

· Traceability of product from manufacturing to final user
· Leaves no doubt as to the age or integrity of the product
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