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About the nitrite reducing bacteria (nrb) tests / dipslides (box of 10)
NRB Test Kit
NRB metabolises nitrate / nitrite thereby reducing nitrite levels and producing ammonia. Both of these outcomes can lead to corrosion.
Systems are often treated with nitrite / nitrate as a corrosion inhibitor. Since NRB reduces nitrite, the corrosion inhibiting abilities of the nitrite are then diminished. A by product of this metabolisation is ammonia. Ammonia is a compound that has corrosive properties. This makes NRB a two fold problem when it comes to corrosion and potential degradation of systems / equipment.
Our NRB tests are plastic tubes containing culture gel. The gel will turn pink when ammonia is present, indicating the presence of nitrite reducing bacteria.
These tests come in a pack size of 10 slides / tests per box.
- Add 2ml of the test sample to the tube. To aid the user, 2ml of test sample can be determined by adding the sample up to the moulded line in the tube.
- Incubate the NRB test / dipslide at 30 degrees C for up to 5 days. Check the test daily for the first three days.
- If there is no colour change or gas bubbles after 5 days, this indicates a negative result.
How to use NRB Test Kit
Remove NRB test cap
Remove one NRB test from the NRB test kit and unscrew the cap (anticlockwise) to remove it.
Add 2ml of sample fluid
Add 2ml of sample fluid to the NRB test. If you do not have a measuring syringe, fill the tube up to the embedded fill line on the tube (which equals 2ml).
Replace the cap
Replace the cap on the NRB test and incubate accordingly.
Check the NRB test
Compare the NRB colouration with the chart provided.
Due to the size of the tubes, for incubation with these NRB tests, we recommend using MX8, MX10, MX25 or MX45. The tubes are too narrow to guarantee accurate incubation using the MX2. The MX8 incubator is sealed with a lid which will trap the heat so the size of the chambers should not affect incubation.
Industry sectors include
- Oil and gas industry
- Closed water system
- Systems containing nitrite corrosion inhibitor
Product Reference : DSNRB
Internal catalogue reference : DS001-148
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